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Mon Sep 15th 2025 Turkish Airlines · TK 186 Depart at 11:25am from Chicago (ORD) Fly for 10h 20m Arrive at 5:45am in Istanbul (IST)
Layover in Istanbul for 1h 35m
Tue Sep 16th 2025 Turkish Airlines · TK 1027 Depart at 7:20am from Istanbul (IST) Fly for 1h 15m Arrive at 8:35am in Sofia (SOF)
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Mon Sep 15th 2025 Turkish Airlines · TK 6 Depart at 7:50pm from Chicago (ORD) Fly for 10h 50m Arrive at 2:40pm in Istanbul (IST)
Layover in Istanbul for 4h 20m
Tue Sep 16th 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)
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Mon Sep 15th 2025 Turkish Airlines · TK 186 Depart at 11:25am from Chicago (ORD) Fly for 10h 20m Arrive at 5:45am in Istanbul (IST)
Layover in Istanbul for 7h 35m
Tue Sep 16th 2025 Turkish Airlines · TK 1031 Depart at 1:20pm from Istanbul (IST) Fly for 1h 25m Arrive at 2:45pm in Sofia (SOF)
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Tue Sep 16th 2025 Turkish Airlines · TK 186 Depart at 11:25am from Chicago (ORD) Fly for 10h 20m Arrive at 5:45am in Istanbul (IST)
Layover in Istanbul for 7h 35m
Wed Sep 17th 2025 Turkish Airlines · TK 1031 Depart at 1:20pm from Istanbul (IST) Fly for 1h 25m Arrive at 2:45pm in Sofia (SOF)
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Tue Sep 16th 2025 Turkish Airlines · TK 186 Depart at 11:25am from Chicago (ORD) Fly for 10h 20m Arrive at 5:45am in Istanbul (IST)
Layover in Istanbul for 1h 35m
Wed Sep 17th 2025 Turkish Airlines · TK 1027 Depart at 7:20am from Istanbul (IST) Fly for 1h 15m Arrive at 8:35am in Sofia (SOF)
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Tue Sep 16th 2025 Turkish Airlines · TK 6 Depart at 7:50pm from Chicago (ORD) Fly for 10h 50m Arrive at 2:40pm in Istanbul (IST)
Layover in Istanbul for 4h 20m
Wed Sep 17th 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)
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Fri Sep 12th 2025 Turkish Airlines · TK 186 Depart at 11:25am from Chicago (ORD) Fly for 10h 20m Arrive at 5:45am in Istanbul (IST)
Layover in Istanbul for 1h 35m
Sat Sep 13th 2025 Turkish Airlines · TK 1027 Depart at 7:20am from Istanbul (IST) Fly for 1h 15m Arrive at 8:35am in Sofia (SOF)
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Sat Sep 20th 2025 Turkish Airlines · TK 186 Depart at 11:25am from Chicago (ORD) Fly for 10h 20m Arrive at 5:45am in Istanbul (IST)
Layover in Istanbul for 1h 35m
Sun Sep 21st 2025 Turkish Airlines · TK 1027 Depart at 7:20am from Istanbul (IST) Fly for 1h 15m Arrive at 8:35am in Sofia (SOF)
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Sat Sep 13th 2025 Turkish Airlines · TK 186 Depart at 11:25am from Chicago (ORD) Fly for 10h 20m Arrive at 5:45am in Istanbul (IST)
Layover in Istanbul for 1h 35m
Sun Sep 14th 2025 Turkish Airlines · TK 1027 Depart at 7:20am from Istanbul (IST) Fly for 1h 15m Arrive at 8:35am in Sofia (SOF)
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Sat Sep 13th 2025 Turkish Airlines · TK 6 Depart at 7:50pm from Chicago (ORD) Fly for 10h 50m Arrive at 2:40pm in Istanbul (IST)
Layover in Istanbul for 4h 20m
Sun Sep 14th 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)
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Sun Sep 14th 2025 Swiss International Air Lines · LX 9 Depart at 7:05pm from Chicago (ORD) Fly for 8h 45m Arrive at 10:50am in Zürich (ZRH)
Layover in Zürich for 0h 40m
Mon Sep 15th 2025 Swiss International Air Lines · LX 1390 Depart at 11:30am from Zürich (ZRH) Fly for 2h 15m Arrive at 2:45pm in Sofia (SOF)
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Sat Sep 13th 2025 Lufthansa · LH 435 Depart at 9:40pm from Chicago (ORD) Fly for 8h 30m Arrive at 1:10pm in Munich (MUC)
Layover in Munich for 2h 40m
Sun Sep 14th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)
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Sat Sep 13th 2025 United Airlines · UA 9850 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Sun Sep 14th 2025 Austrian Airlines · OS 795 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Sat Sep 13th 2025 United Airlines · UA 8854 Depart at 9:40pm from Chicago (ORD) Fly for 8h 30m Arrive at 1:10pm in Munich (MUC)
Layover in Munich for 2h 40m
Sun Sep 14th 2025 United Airlines · UA 9134 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)
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Fri Sep 12th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Sat Sep 13th 2025 Austrian Airlines · OS 795 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Fri Sep 12th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 4h 30m
Sat Sep 13th 2025 Austrian Airlines · OS 791 Depart at 12:50pm from Vienna (VIE) Fly for 1h 30m Arrive at 3:20pm in Sofia (SOF)
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Sat Sep 13th 2025 United Airlines · UA 944 Depart at 3:05pm from Chicago (ORD) Fly for 8h 25m Arrive at 6:30am in Frankfurt (FRA)
Layover in Frankfurt for 1h 35m
Sun Sep 14th 2025 United Airlines · UA 9520 Depart at 8:05am from Frankfurt (FRA) Fly for 2h 10m Arrive at 11:15am in Sofia (SOF)
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Sun Sep 14th 2025 Lufthansa · LH 437 Depart at 3:35pm from Chicago (ORD) Fly for 8h 30m Arrive at 7:05am in Munich (MUC)
Layover in Munich for 2h 5m
Mon Sep 15th 2025 Lufthansa · LH 1702 Depart at 9:10am from Munich (MUC) Fly for 1h 50m Arrive at 12:00pm in Sofia (SOF)
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Sun Sep 14th 2025 Lufthansa · LH 435 Depart at 9:40pm from Chicago (ORD) Fly for 8h 30m Arrive at 1:10pm in Munich (MUC)
Layover in Munich for 7h 0m
Mon Sep 15th 2025 Lufthansa · LH 1706 Depart at 8:10pm from Munich (MUC) Fly for 1h 50m Arrive at 11:00pm in Sofia (SOF)
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Sat Sep 13th 2025 United Airlines · UA 9850 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Sun Sep 14th 2025 United Airlines · UA 9832 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Fri Sep 12th 2025 Lufthansa · LH 433 Depart at 10:30pm from Chicago (ORD) Fly for 8h 35m Arrive at 2:05pm in Frankfurt (FRA)
Layover in Frankfurt for 5h 35m
Sat Sep 13th 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)
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Sat Sep 13th 2025 Lufthansa · LH 431 Depart at 4:00pm from Chicago (ORD) Fly for 8h 20m Arrive at 7:20am in Frankfurt (FRA)
Layover in Frankfurt for 2h 35m
Sun Sep 14th 2025 Lufthansa · LH 1426 Depart at 9:55am from Frankfurt (FRA) Fly for 2h 10m Arrive at 1:05pm in Sofia (SOF)
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Sun Sep 14th 2025 Lufthansa · LH 433 Depart at 10:30pm from Chicago (ORD) Fly for 8h 35m Arrive at 2:05pm in Frankfurt (FRA)
Layover in Frankfurt for 5h 35m
Mon Sep 15th 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)
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Sat Sep 13th 2025 Lufthansa · LH 433 Depart at 10:30pm from Chicago (ORD) Fly for 8h 35m Arrive at 2:05pm in Frankfurt (FRA)
Layover in Frankfurt for 5h 35m
Sun Sep 14th 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)
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Sun Sep 14th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Mon Sep 15th 2025 Austrian Airlines · OS 795 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Sat Sep 13th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Sun Sep 14th 2025 Austrian Airlines · OS 795 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Sat Sep 13th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 4h 30m
Sun Sep 14th 2025 Austrian Airlines · OS 791 Depart at 12:50pm from Vienna (VIE) Fly for 1h 30m Arrive at 3:20pm in Sofia (SOF)
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Sun Sep 14th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 4h 30m
Mon Sep 15th 2025 Austrian Airlines · OS 791 Depart at 12:50pm from Vienna (VIE) Fly for 1h 30m Arrive at 3:20pm in Sofia (SOF)
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Thu Sep 18th 2025 Turkish Airlines · TK 186 Depart at 11:25am from Chicago (ORD) Fly for 10h 20m Arrive at 5:45am in Istanbul (IST)
Layover in Istanbul for 1h 35m
Fri Sep 19th 2025 Turkish Airlines · TK 1027 Depart at 7:20am from Istanbul (IST) Fly for 1h 15m Arrive at 8:35am in Sofia (SOF)
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Thu Sep 18th 2025 Turkish Airlines · TK 6 Depart at 7:50pm from Chicago (ORD) Fly for 10h 50m Arrive at 2:40pm in Istanbul (IST)
Layover in Istanbul for 4h 20m
Fri Sep 19th 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)
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Tue Sep 16th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 10h 0m
Wed Sep 17th 2025 Ryanair · FR 182 Depart at 6:20pm from Vienna (VIE) Fly for 1h 35m Arrive at 8:55pm in Sofia (SOF)
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Sat Sep 20th 2025 Finnair · AY 5660 Depart at 4:30pm from Chicago (ORD) Fly for 8h 25m Arrive at 7:55am in Madrid (MAD)
Layover in Madrid for 9h 15m
Sun Sep 21st 2025 Ryanair · FR 6410 Depart at 5:10pm from Madrid (MAD) Fly for 3h 25m Arrive at 9:35pm in Sofia (SOF)
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Tue Sep 16th 2025 United Airlines · UA 9850 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Wed Sep 17th 2025 Austrian Airlines · OS 795 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Wed Sep 17th 2025 Air Serbia · JU 507 Depart at 4:30pm from Chicago (ORD) Fly for 9h 45m Arrive at 9:15am in Belgrade (BEG)
Layover in Belgrade for 4h 5m
Thu Sep 18th 2025 Air Serbia · JU 112 Depart at 1:20pm from Belgrade (BEG) Fly for 1h 15m Arrive at 3:35pm in Sofia (SOF)
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Sun Sep 14th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 7h 20m
Mon Sep 15th 2025 Austrian Airlines · OS 797 Depart at 3:40pm from Vienna (VIE) Fly for 1h 30m Arrive at 6:10pm in Sofia (SOF)
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Thu Sep 18th 2025 Lufthansa · LH 431 Depart at 4:00pm from Chicago (ORD) Fly for 8h 20m Arrive at 7:20am in Frankfurt (FRA)
Layover in Frankfurt for 2h 35m
Fri Sep 19th 2025 Lufthansa · LH 1426 Depart at 9:55am from Frankfurt (FRA) Fly for 2h 10m Arrive at 1:05pm in Sofia (SOF)
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Tue Sep 16th 2025 United Airlines · UA 9850 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Wed Sep 17th 2025 United Airlines · UA 9832 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Mon Sep 15th 2025 United Airlines · UA 9850 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Tue Sep 16th 2025 United Airlines · UA 9832 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Mon Sep 15th 2025 Lufthansa · LH 435 Depart at 9:40pm from Chicago (ORD) Fly for 8h 30m Arrive at 1:10pm in Munich (MUC)
Layover in Munich for 2h 40m
Tue Sep 16th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)
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Mon Sep 15th 2025 Air Serbia · JU 507 Depart at 6:50pm from Chicago (ORD) Fly for 9h 45m Arrive at 11:35am in Belgrade (BEG)
Layover in Belgrade for 1h 45m
Tue Sep 16th 2025 Air Serbia · JU 112 Depart at 1:20pm from Belgrade (BEG) Fly for 1h 15m Arrive at 3:35pm in Sofia (SOF)
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Sat Sep 20th 2025 Lufthansa · LH 431 Depart at 4:00pm from Chicago (ORD) Fly for 8h 20m Arrive at 7:20am in Frankfurt (FRA)
Layover in Frankfurt for 2h 35m
Sun Sep 21st 2025 Lufthansa · LH 1426 Depart at 9:55am from Frankfurt (FRA) Fly for 2h 10m Arrive at 1:05pm in Sofia (SOF)
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Tue Sep 16th 2025 Lufthansa · LH 433 Depart at 10:30pm from Chicago (ORD) Fly for 8h 35m Arrive at 2:05pm in Frankfurt (FRA)
Layover in Frankfurt for 5h 35m
Wed Sep 17th 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)
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Wed Sep 17th 2025 Lufthansa · LH 433 Depart at 10:30pm from Chicago (ORD) Fly for 8h 35m Arrive at 2:05pm in Frankfurt (FRA)
Layover in Frankfurt for 5h 35m
Thu Sep 18th 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)
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Sat Sep 20th 2025 Lufthansa · LH 433 Depart at 10:30pm from Chicago (ORD) Fly for 8h 35m Arrive at 2:05pm in Frankfurt (FRA)
Layover in Frankfurt for 5h 35m
Sun Sep 21st 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)
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Thu Sep 18th 2025 Lufthansa · LH 433 Depart at 10:30pm from Chicago (ORD) Fly for 8h 35m Arrive at 2:05pm in Frankfurt (FRA)
Layover in Frankfurt for 5h 35m
Fri Sep 19th 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)
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Fri Sep 12th 2025 Lufthansa · LH 431 Depart at 4:00pm from Chicago (ORD) Fly for 8h 20m Arrive at 7:20am in Frankfurt (FRA)
Layover in Frankfurt for 2h 55m
Sat Sep 13th 2025 Lufthansa · LH 1426 Depart at 10:15am from Frankfurt (FRA) Fly for 2h 10m Arrive at 1:25pm in Sofia (SOF)
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Tue Sep 16th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Wed Sep 17th 2025 Austrian Airlines · OS 795 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Mon Sep 15th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Tue Sep 16th 2025 Austrian Airlines · OS 795 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Sat Sep 20th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Sun Sep 21st 2025 Austrian Airlines · OS 795 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Fri Sep 19th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Sat Sep 20th 2025 Austrian Airlines · OS 795 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Thu Sep 18th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 0h 50m
Fri Sep 19th 2025 Austrian Airlines · OS 795 Depart at 9:10am from Vienna (VIE) Fly for 1h 30m Arrive at 11:40am in Sofia (SOF)
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Tue Sep 16th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 7h 20m
Wed Sep 17th 2025 Austrian Airlines · OS 797 Depart at 3:40pm from Vienna (VIE) Fly for 1h 30m Arrive at 6:10pm in Sofia (SOF)
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Wed Sep 17th 2025 Lufthansa · LH 431 Depart at 4:00pm from Chicago (ORD) Fly for 8h 20m Arrive at 7:20am in Frankfurt (FRA)
Layover in Frankfurt for 7h 20m
Thu Sep 18th 2025 Lufthansa · LH 1428 Depart at 2:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 5:50pm in Sofia (SOF)
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Sat Sep 20th 2025 Finnair · AY 5660 Depart at 4:30pm from Chicago (ORD) Fly for 8h 25m Arrive at 7:55am in Madrid (MAD)
Layover in Madrid for 10h 10m
Sun Sep 21st 2025 Wizz Air · W6 4402 Depart at 6:05pm from Madrid (MAD) Fly for 3h 30m Arrive at 10:35pm in Sofia (SOF)
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Sat Sep 20th 2025 Lufthansa · LH 435 Depart at 9:40pm from Chicago (ORD) Fly for 8h 30m Arrive at 1:10pm in Munich (MUC)
Layover in Munich for 2h 40m
Sun Sep 21st 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)
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Tue Sep 16th 2025 Aer Lingus · EI 122 Depart at 3:45pm from Chicago (ORD) Fly for 7h 25m Arrive at 5:10am in Dublin (DUB)
Layover in Dublin for 2h 45m
Wed Sep 17th 2025 Ryanair · FR 5203 Depart at 7:55am from Dublin (DUB) Fly for 3h 40m Arrive at 1:35pm in Sofia (SOF)
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Sat Sep 20th 2025 Aer Lingus · EI 124 Depart at 9:15pm from Chicago (ORD) Fly for 7h 25m Arrive at 10:40am in Dublin (DUB)
Layover in Dublin for 6h 35m
Sun Sep 21st 2025 Ryanair · FR 5203 Depart at 5:15pm from Dublin (DUB) Fly for 3h 40m Arrive at 10:55pm in Sofia (SOF)
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Sat Sep 20th 2025 British Airways · BA 296 Depart at 9:15pm from Chicago (ORD) Fly for 7h 40m Arrive at 10:55am in London (LHR)
Layover in London for 4h 15m
Sun Sep 21st 2025 British Airways · BA 892 Depart at 3:10pm from London (LHR) Fly for 3h 10m Arrive at 8:20pm in Sofia (SOF)
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Sat Sep 20th 2025 British Airways · BA 298 Depart at 7:10pm from Chicago (ORD) Fly for 7h 55m Arrive at 9:05am in London (LHR)
Layover in London for 6h 5m
Sun Sep 21st 2025 British Airways · BA 892 Depart at 3:10pm from London (LHR) Fly for 3h 10m Arrive at 8:20pm in Sofia (SOF)
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Sat Sep 20th 2025 British Airways · BA 294 Depart at 4:55pm from Chicago (ORD) Fly for 7h 55m Arrive at 6:50am in London (LHR)
Layover in London for 8h 20m
Sun Sep 21st 2025 British Airways · BA 892 Depart at 3:10pm from London (LHR) Fly for 3h 10m Arrive at 8:20pm in Sofia (SOF)
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Fri Sep 12th 2025 Lufthansa · LH 435 Depart at 9:40pm from Chicago (ORD) Fly for 8h 30m Arrive at 1:10pm in Munich (MUC)
Layover in Munich for 2h 40m
Sat Sep 13th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)
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Sat Sep 20th 2025 Finnair · AY 5660 Depart at 4:30pm from Chicago (ORD) Fly for 8h 25m Arrive at 7:55am in Madrid (MAD)
Layover in Madrid for 2h 15m
Sun Sep 21st 2025 Iberia Airlines · IB 7861 Depart at 10:10am from Madrid (MAD) Fly for 3h 30m Arrive at 2:40pm in Sofia (SOF)
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Fri Sep 19th 2025 TAP Portugal · TP 244 Depart at 6:00pm from Chicago (ORD) Fly for 7h 55m Arrive at 7:55am in Lisbon (LIS)
Layover in Lisbon for 15h 5m
Sat Sep 20th 2025 Bulgaria Air · FB 564 Depart at 11:00pm from Lisbon (LIS) Fly for 4h 0m Arrive at 5:00am in Sofia (SOF)
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Sat Sep 13th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 7h 20m
Sun Sep 14th 2025 Austrian Airlines · OS 797 Depart at 3:40pm from Vienna (VIE) Fly for 1h 30m Arrive at 6:10pm in Sofia (SOF)
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Tue Sep 16th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 4h 30m
Wed Sep 17th 2025 Austrian Airlines · OS 791 Depart at 12:50pm from Vienna (VIE) Fly for 1h 30m Arrive at 3:20pm in Sofia (SOF)
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Mon Sep 15th 2025 Lufthansa · LH 433 Depart at 10:30pm from Chicago (ORD) Fly for 8h 35m Arrive at 2:05pm in Frankfurt (FRA)
Layover in Frankfurt for 5h 35m
Tue Sep 16th 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)
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Mon Sep 15th 2025 Lufthansa · LH 431 Depart at 4:00pm from Chicago (ORD) Fly for 8h 20m Arrive at 7:20am in Frankfurt (FRA)
Layover in Frankfurt for 7h 20m
Tue Sep 16th 2025 Lufthansa · LH 1428 Depart at 2:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 5:50pm in Sofia (SOF)
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Thu Sep 18th 2025 Finnair · AY 5660 Depart at 4:30pm from Chicago (ORD) Fly for 8h 25m Arrive at 7:55am in Madrid (MAD)
Layover in Madrid for 2h 15m
Fri Sep 19th 2025 Bulgaria Air · FB 472 Depart at 10:10am from Madrid (MAD) Fly for 3h 20m Arrive at 2:30pm in Sofia (SOF)
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Sat Sep 20th 2025 Finnair · AY 5660 Depart at 4:30pm from Chicago (ORD) Fly for 8h 25m Arrive at 7:55am in Madrid (MAD)
Layover in Madrid for 2h 15m
Sun Sep 21st 2025 Bulgaria Air · FB 472 Depart at 10:10am from Madrid (MAD) Fly for 3h 30m Arrive at 2:40pm in Sofia (SOF)
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Fri Sep 19th 2025 Finnair · AY 5660 Depart at 4:30pm from Chicago (ORD) Fly for 8h 25m Arrive at 7:55am in Madrid (MAD)
Layover in Madrid for 4h 35m
Sat Sep 20th 2025 Bulgaria Air · FB 474 Depart at 12:30pm from Madrid (MAD) Fly for 3h 20m Arrive at 4:50pm in Sofia (SOF)
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Mon Sep 15th 2025 ITA Airways · AZ 629 Depart at 3:00pm from Chicago (ORD) Fly for 9h 25m Arrive at 7:25am in Rome (FCO)
Layover in Rome for 1h 45m
Tue Sep 16th 2025 Bulgaria Air · FB 450 Depart at 9:10am from Rome (FCO) Fly for 2h 0m Arrive at 12:10pm in Sofia (SOF)
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Wed Sep 17th 2025 ITA Airways · AZ 629 Depart at 3:00pm from Chicago (ORD) Fly for 9h 25m Arrive at 7:25am in Rome (FCO)
Layover in Rome for 1h 45m
Thu Sep 18th 2025 Bulgaria Air · FB 450 Depart at 9:10am from Rome (FCO) Fly for 2h 0m Arrive at 12:10pm in Sofia (SOF)
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Wed Sep 17th 2025 Lufthansa · LH 435 Depart at 9:40pm from Chicago (ORD) Fly for 8h 30m Arrive at 1:10pm in Munich (MUC)
Layover in Munich for 2h 40m
Thu Sep 18th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)
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Wed Sep 17th 2025 Lufthansa · LH 431 Depart at 4:00pm from Chicago (ORD) Fly for 8h 20m Arrive at 7:20am in Frankfurt (FRA)
Layover in Frankfurt for 2h 45m
Thu Sep 18th 2025 Lufthansa · LH 1426 Depart at 10:05am from Frankfurt (FRA) Fly for 2h 10m Arrive at 1:15pm in Sofia (SOF)
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Fri Sep 19th 2025 Lufthansa · LH 433 Depart at 10:30pm from Chicago (ORD) Fly for 8h 35m Arrive at 2:05pm in Frankfurt (FRA)
Layover in Frankfurt for 5h 35m
Sat Sep 20th 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)
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Tue Sep 16th 2025 SAS · SK 944 Depart at 7:15pm from Chicago (ORD) Fly for 8h 30m Arrive at 10:45am in Copenhagen (CPH)
Layover in Copenhagen for 4h 55m
Wed Sep 17th 2025 Ryanair · FR 3606 Depart at 3:40pm from Copenhagen (CPH) Fly for 2h 45m Arrive at 7:25pm in Sofia (SOF)
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Fri Sep 19th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 4h 30m
Sat Sep 20th 2025 Austrian Airlines · OS 791 Depart at 12:50pm from Vienna (VIE) Fly for 1h 30m Arrive at 3:20pm in Sofia (SOF)
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Sat Sep 20th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 7h 20m
Sun Sep 21st 2025 Austrian Airlines · OS 797 Depart at 3:40pm from Vienna (VIE) Fly for 1h 30m Arrive at 6:10pm in Sofia (SOF)
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Fri Sep 19th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 7h 20m
Sat Sep 20th 2025 Austrian Airlines · OS 797 Depart at 3:40pm from Vienna (VIE) Fly for 1h 30m Arrive at 6:10pm in Sofia (SOF)
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Fri Sep 19th 2025 ITA Airways · AZ 629 Depart at 3:00pm from Chicago (ORD) Fly for 9h 25m Arrive at 7:25am in Rome (FCO)
Layover in Rome for 1h 45m
Sat Sep 20th 2025 Bulgaria Air · FB 450 Depart at 9:10am from Rome (FCO) Fly for 2h 0m Arrive at 12:10pm in Sofia (SOF)
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Tue Sep 16th 2025 Finnair · AY 5660 Depart at 4:30pm from Chicago (ORD) Fly for 8h 25m Arrive at 7:55am in Madrid (MAD)
Layover in Madrid for 2h 15m
Wed Sep 17th 2025 Bulgaria Air · FB 472 Depart at 10:10am from Madrid (MAD) Fly for 3h 20m Arrive at 2:30pm in Sofia (SOF)
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Sat Sep 20th 2025 Austrian Airlines · OS 66 Depart at 4:20pm from Chicago (ORD) Fly for 9h 0m Arrive at 8:20am in Vienna (VIE)
Layover in Vienna for 4h 30m
Sun Sep 21st 2025 Austrian Airlines · OS 791 Depart at 12:50pm from Vienna (VIE) Fly for 1h 30m Arrive at 3:20pm in Sofia (SOF)
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Thu Sep 18th 2025 Lufthansa · LH 433 Depart at 10:30pm from Chicago (ORD) Fly for 8h 35m Arrive at 2:05pm in Frankfurt (FRA)
Layover in Frankfurt for 4h 5m
Fri Sep 19th 2025 Bulgaria Air · FB 438 Depart at 6:10pm from Frankfurt (FRA) Fly for 2h 20m Arrive at 9:30pm in Sofia (SOF)
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Sat Sep 13th 2025 Finnair · AY 5660 Depart at 4:30pm from Chicago (ORD) Fly for 8h 25m Arrive at 7:55am in Madrid (MAD)
Layover in Madrid for 2h 15m
Sun Sep 14th 2025 Iberia Airlines · IB 7861 Depart at 10:10am from Madrid (MAD) Fly for 3h 30m Arrive at 2:40pm in Sofia (SOF)
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Fri Sep 12th 2025 Finnair · AY 5660 Depart at 4:30pm from Chicago (ORD) Fly for 8h 25m Arrive at 7:55am in Madrid (MAD)
Layover in Madrid for 4h 35m
Sat Sep 13th 2025 Bulgaria Air · FB 474 Depart at 12:30pm from Madrid (MAD) Fly for 3h 20m Arrive at 4:50pm in Sofia (SOF)
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Sat Sep 13th 2025 KLM Royal Dutch Airlines · KL 612 Depart at 4:20pm from Chicago (ORD) Fly for 7h 45m Arrive at 7:05am in Amsterdam (AMS)
Layover in Amsterdam for 3h 10m
Sun Sep 14th 2025 Bulgaria Air · FB 462 Depart at 10:15am from Amsterdam (AMS) Fly for 2h 45m Arrive at 2:00pm in Sofia (SOF)
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Tue Sep 16th 2025 KLM Royal Dutch Airlines · KL 612 Depart at 4:20pm from Chicago (ORD) Fly for 7h 45m Arrive at 7:05am in Amsterdam (AMS)
Layover in Amsterdam for 3h 10m
Wed Sep 17th 2025 Bulgaria Air · FB 462 Depart at 10:15am from Amsterdam (AMS) Fly for 2h 45m Arrive at 2:00pm in Sofia (SOF)
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Mon Sep 15th 2025 KLM Royal Dutch Airlines · KL 612 Depart at 4:50pm from Chicago (ORD) Fly for 7h 45m Arrive at 7:35am in Amsterdam (AMS)
Layover in Amsterdam for 2h 40m
Tue Sep 16th 2025 Bulgaria Air · FB 462 Depart at 10:15am from Amsterdam (AMS) Fly for 2h 45m Arrive at 2:00pm in Sofia (SOF)
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Sat Sep 13th 2025 LOT Polish Airlines · LO 2 Depart at 5:10pm from Chicago (ORD) Fly for 9h 10m Arrive at 9:20am in Warsaw (WAW)
Layover in Warsaw for 5h 30m
Sun Sep 14th 2025 LOT Polish Airlines · LO 633 Depart at 2:50pm from Warsaw (WAW) Fly for 2h 5m Arrive at 5:55pm in Sofia (SOF)
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Mon Sep 15th 2025 LOT Polish Airlines · LO 2 Depart at 5:10pm from Chicago (ORD) Fly for 9h 10m Arrive at 9:20am in Warsaw (WAW)
Layover in Warsaw for 5h 30m
Tue Sep 16th 2025 LOT Polish Airlines · LO 633 Depart at 2:50pm from Warsaw (WAW) Fly for 2h 5m Arrive at 5:55pm in Sofia (SOF)
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Sat Sep 20th 2025 LOT Polish Airlines · LO 2 Depart at 5:10pm from Chicago (ORD) Fly for 9h 10m Arrive at 9:20am in Warsaw (WAW)
Layover in Warsaw for 5h 30m
Sun Sep 21st 2025 LOT Polish Airlines · LO 633 Depart at 2:50pm from Warsaw (WAW) Fly for 2h 5m Arrive at 5:55pm in Sofia (SOF)
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Sun Sep 14th 2025 Turkish Airlines · TK 6 Depart at 7:50pm from Chicago (ORD) Fly for 10h 50m Arrive at 2:40pm in Istanbul (IST)
Layover in Istanbul for 4h 20m
Mon Sep 15th 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)
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Wed Sep 17th 2025 Lufthansa · LH 437 Depart at 3:35pm from Chicago (ORD) Fly for 8h 30m Arrive at 7:05am in Munich (MUC)
Layover in Munich for 2h 5m
Thu Sep 18th 2025 Lufthansa · LH 1702 Depart at 9:10am from Munich (MUC) Fly for 1h 50m Arrive at 12:00pm in Sofia (SOF)
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Thu Sep 18th 2025 Lufthansa · LH 435 Depart at 9:40pm from Chicago (ORD) Fly for 8h 30m Arrive at 1:10pm in Munich (MUC)
Layover in Munich for 2h 40m
Fri Sep 19th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)
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Fri Sep 19th 2025 Turkish Airlines · TK 6 Depart at 7:50pm from Chicago (ORD) Fly for 10h 50m Arrive at 2:40pm in Istanbul (IST)
Layover in Istanbul for 4h 20m
Sat Sep 20th 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)
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Wed Sep 17th 2025 LOT Polish Airlines · LO 2 Depart at 5:10pm from Chicago (ORD) Fly for 9h 10m Arrive at 9:20am in Warsaw (WAW)
Layover in Warsaw for 5h 30m
Thu Sep 18th 2025 LOT Polish Airlines · LO 633 Depart at 2:50pm from Warsaw (WAW) Fly for 2h 5m Arrive at 5:55pm in Sofia (SOF)
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Fri Sep 19th 2025 Lufthansa · LH 435 Depart at 9:40pm from Chicago (ORD) Fly for 8h 30m Arrive at 1:10pm in Munich (MUC)
Layover in Munich for 2h 40m
Sat Sep 20th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)
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Sat Sep 20th 2025 Aer Lingus · EI 122 Depart at 3:45pm from Chicago (ORD) Fly for 7h 25m Arrive at 5:10am in Dublin (DUB)
Layover in Dublin for 12h 5m
Sun Sep 21st 2025 Ryanair · FR 5203 Depart at 5:15pm from Dublin (DUB) Fly for 3h 40m Arrive at 10:55pm in Sofia (SOF)
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Tue Sep 16th 2025 SAS · SK 944 Depart at 7:15pm from Chicago (ORD) Fly for 8h 30m Arrive at 10:45am in Copenhagen (CPH)
Layover in Copenhagen for 4h 55m
Wed Sep 17th 2025 Ryanair · FR 3606 Depart at 3:40pm from Copenhagen (CPH) Fly for 2h 45m Arrive at 7:25pm in Sofia (SOF)
