Cheap Flights from Boston to Spain (BOS to ES)

Mon Nov 3rd 2025 Iberia Airlines · IB 2626 Depart at 10:40pm from Boston (BOS) Fly for 7h 15m Arrive at 11:55am in Barcelona (BCN)

Sat Nov 8th 2025 Iberia Airlines · IB 2626 Depart at 10:40pm from Boston (BOS) Fly for 7h 15m Arrive at 11:55am in Barcelona (BCN)

Thu Nov 6th 2025 Iberia Airlines · IB 2626 Depart at 10:40pm from Boston (BOS) Fly for 7h 15m Arrive at 11:55am in Barcelona (BCN)

Mon Jun 9th 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Thu Jun 5th 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Wed Jun 4th 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Mon Jun 2nd 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Mon May 26th 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Mon Jun 30th 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Tue Jun 10th 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Tue Nov 4th 2025 Iberia Airlines · IB 2626 Depart at 10:40pm from Boston (BOS) Fly for 7h 15m Arrive at 11:55am in Barcelona (BCN)

Tue Oct 14th 2025 KLM Royal Dutch Airlines · KL 6009 Depart at 6:05pm from Boston (BOS) Fly for 7h 10m Arrive at 7:15am in Barcelona (BCN)

Sun Sep 21st 2025 Iberia Airlines · IB 346 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Sun Sep 21st 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Tue Oct 7th 2025 KLM Royal Dutch Airlines · KL 6009 Depart at 6:05pm from Boston (BOS) Fly for 7h 10m Arrive at 7:15am in Barcelona (BCN)

Tue Oct 21st 2025 Air France · AF 3575 Depart at 6:05pm from Boston (BOS) Fly for 7h 10m Arrive at 7:15am in Barcelona (BCN)

Tue Oct 28th 2025 Finnair · AY 5648 Depart at 5:45pm from Boston (BOS) Fly for 7h 0m Arrive at 5:45am in Madrid (MAD)

Mon Oct 20th 2025 Finnair · AY 5648 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Wed Oct 15th 2025 Finnair · AY 5370 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Mon Oct 20th 2025 Finnair · AY 5370 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Tue Oct 21st 2025 Finnair · AY 5370 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Wed Oct 15th 2025 Finnair · AY 5648 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Tue Oct 7th 2025 Finnair · AY 5648 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Thu Oct 23rd 2025 Air France · AF 3575 Depart at 6:05pm from Boston (BOS) Fly for 7h 10m Arrive at 7:15am in Barcelona (BCN)

Sat Oct 11th 2025 Air France · AF 3575 Depart at 6:05pm from Boston (BOS) Fly for 7h 10m Arrive at 7:15am in Barcelona (BCN)

Fri Oct 31st 2025 Finnair · AY 5370 Depart at 10:20pm from Boston (BOS) Fly for 7h 0m Arrive at 10:20am in Madrid (MAD)

Thu Oct 30th 2025 Finnair · AY 5648 Depart at 5:45pm from Boston (BOS) Fly for 7h 0m Arrive at 5:45am in Madrid (MAD)

Fri Oct 31st 2025 Finnair · AY 5648 Depart at 5:45pm from Boston (BOS) Fly for 7h 0m Arrive at 5:45am in Madrid (MAD)

Sun Jun 22nd 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Tue Jun 10th 2025 Virgin Atlantic Airways · VS 4216 Depart at 5:55pm from Boston (BOS) Fly for 7h 20m Arrive at 7:15am in Barcelona (BCN)

Tue Jun 10th 2025 Air France · AF 3575 Depart at 5:55pm from Boston (BOS) Fly for 7h 20m Arrive at 7:15am in Barcelona (BCN)

Tue Jun 3rd 2025 KLM Royal Dutch Airlines · KL 6009 Depart at 5:55pm from Boston (BOS) Fly for 7h 20m Arrive at 7:15am in Barcelona (BCN)

Tue Jun 17th 2025 KLM Royal Dutch Airlines · KL 6009 Depart at 5:55pm from Boston (BOS) Fly for 7h 20m Arrive at 7:15am in Barcelona (BCN)

Mon May 26th 2025 Iberia Airlines · IB 346 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Sun Jun 8th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Wed Jun 11th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Wed May 28th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Tue May 27th 2025 Iberia Airlines · IB 346 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Mon May 26th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Wed May 28th 2025 Iberia Airlines · IB 346 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Tue May 27th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Sun May 25th 2025 Finnair · AY 5370 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Fri May 16th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Thu May 15th 2025 Iberia Airlines · IB 346 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Fri Jun 6th 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Sun Jun 1st 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Tue Jun 24th 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Tue Jun 3rd 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Sun Jun 8th 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Fri Jun 20th 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Thu May 29th 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Fri May 30th 2025 Vueling · VY 9796 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Thu Jun 12th 2025 Virgin Atlantic Airways · VS 4216 Depart at 5:55pm from Boston (BOS) Fly for 7h 20m Arrive at 7:15am in Barcelona (BCN)

Thu Jun 5th 2025 Virgin Atlantic Airways · VS 4216 Depart at 5:55pm from Boston (BOS) Fly for 7h 20m Arrive at 7:15am in Barcelona (BCN)

Thu May 29th 2025 KLM Royal Dutch Airlines · KL 6009 Depart at 6:00pm from Boston (BOS) Fly for 7h 15m Arrive at 7:15am in Barcelona (BCN)

Sat Jun 21st 2025 KLM Royal Dutch Airlines · KL 6009 Depart at 5:55pm from Boston (BOS) Fly for 7h 20m Arrive at 7:15am in Barcelona (BCN)

Mon Jun 23rd 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Wed Jun 18th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Sun Jun 22nd 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Sun Jun 15th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Mon Jun 16th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Thu Jun 5th 2025 Iberia Airlines · IB 346 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Thu May 29th 2025 Iberia Airlines · IB 346 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Sat Jun 7th 2025 Iberia Airlines · IB 346 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Fri Jun 6th 2025 Iberia Airlines · IB 346 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Thu Jun 5th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Thu Jun 12th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Thu May 29th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Thu Jun 5th 2025 Air France · AF 3575 Depart at 5:55pm from Boston (BOS) Fly for 7h 20m Arrive at 7:15am in Barcelona (BCN)

Mon Jun 2nd 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Wed Jun 25th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Mon Jun 9th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Fri Jun 6th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Wed Jun 4th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Tue Jun 3rd 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Thu Jun 5th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Tue Jun 24th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Tue Jun 10th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Wed May 28th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Thu May 29th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Fri Jun 13th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Sat May 24th 2025 Finnair · AY 5370 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Fri May 16th 2025 Iberia Airlines · IB 346 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Sat May 17th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Sun Jun 1st 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Fri May 30th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Tue Jun 10th 2025 Iberia Airlines · IB 346 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Tue Jun 3rd 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Mon Jun 9th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Sat May 31st 2025 Virgin Atlantic Airways · VS 4216 Depart at 6:00pm from Boston (BOS) Fly for 7h 15m Arrive at 7:15am in Barcelona (BCN)

Sun May 18th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Wed Jun 4th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Thu Jun 26th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Thu Jun 19th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Mon May 19th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Tue May 20th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Thu Jun 12th 2025 Iberia Airlines · IB 2626 Depart at 10:50pm from Boston (BOS) Fly for 7h 25m Arrive at 12:15pm in Barcelona (BCN)

Tue May 20th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)

Mon May 19th 2025 Iberia Airlines · IB 346 Depart at 9:20pm from Boston (BOS) Fly for 7h 10m Arrive at 10:30am in Madrid (MAD)

Mon May 19th 2025 Iberia Airlines · IB 348 Depart at 4:30pm from Boston (BOS) Fly for 7h 10m Arrive at 5:40am in Madrid (MAD)