Flights from Ontario to Portugal (ONT to PT)

Discover more affordable routes and cheaper dates from Ontario to Portugal (ONT to PT) within a date range.

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  • US$744
    Frontier AirlinesTAP Portugal
    8:26am - 11:35am
    Mon Mar 3rd 2025
    19h 9m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Mon Mar 3rd 2025 Frontier Airlines · F9 2677 Depart at 8:26am from Ontario (ONT) Fly for 1h 36m Arrive at 10:02am in San Francisco (SFO)

    Layover in San Francisco for 6h 38m

    Mon Mar 3rd 2025 TAP Portugal · TP 238 Depart at 4:40pm from San Francisco (SFO) Fly for 10h 55m Arrive at 11:35am in Lisbon (LIS)

  • US$767
    Frontier AirlinesTAP Portugal
    8:26am - 11:35am
    Mon Mar 10th 2025
    20h 9m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Mon Mar 10th 2025 Frontier Airlines · F9 2677 Depart at 8:26am from Ontario (ONT) Fly for 1h 36m Arrive at 10:02am in San Francisco (SFO)

    Layover in San Francisco for 7h 38m

    Mon Mar 10th 2025 TAP Portugal · TP 238 Depart at 5:40pm from San Francisco (SFO) Fly for 10h 55m Arrive at 11:35am in Lisbon (LIS)

  • US$770
    Frontier AirlinesTAP Portugal
    8:26am - 11:35am
    Mon Mar 17th 2025
    20h 9m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Mon Mar 17th 2025 Frontier Airlines · F9 2677 Depart at 8:26am from Ontario (ONT) Fly for 1h 36m Arrive at 10:02am in San Francisco (SFO)

    Layover in San Francisco for 7h 38m

    Mon Mar 17th 2025 TAP Portugal · TP 238 Depart at 5:40pm from San Francisco (SFO) Fly for 10h 55m Arrive at 11:35am in Lisbon (LIS)

  • US$781
    Frontier AirlinesTAP Portugal
    8:26am - 11:35am
    Mon Mar 24th 2025
    20h 9m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Mon Mar 24th 2025 Frontier Airlines · F9 2677 Depart at 8:26am from Ontario (ONT) Fly for 1h 36m Arrive at 10:02am in San Francisco (SFO)

    Layover in San Francisco for 7h 38m

    Mon Mar 24th 2025 TAP Portugal · TP 238 Depart at 5:40pm from San Francisco (SFO) Fly for 10h 55m Arrive at 11:35am in Lisbon (LIS)

  • US$792
    Frontier AirlinesTAP Portugal
    8:16am - 11:25am
    Sun Mar 30th 2025
    19h 9m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Sun Mar 30th 2025 Frontier Airlines · F9 2677 Depart at 8:16am from Ontario (ONT) Fly for 1h 36m Arrive at 9:52am in San Francisco (SFO)

    Layover in San Francisco for 6h 28m

    Sun Mar 30th 2025 TAP Portugal · TP 2482 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 5m Arrive at 11:25am in Lisbon (LIS)

  • US$800
    Frontier AirlinesTAP Portugal
    7:55am - 11:35am
    Thu Apr 10th 2025
    19h 40m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Thu Apr 10th 2025 Frontier Airlines · F9 2677 Depart at 7:55am from Ontario (ONT) Fly for 1h 32m Arrive at 9:27am in San Francisco (SFO)

    Layover in San Francisco for 6h 53m

    Thu Apr 10th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$805
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Sat Apr 26th 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Sat Apr 26th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Sat Apr 26th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$806
    Frontier AirlinesTAP Portugal
    7:55am - 11:35am
    Thu Apr 17th 2025
    19h 40m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Thu Apr 17th 2025 Frontier Airlines · F9 2677 Depart at 7:55am from Ontario (ONT) Fly for 1h 32m Arrive at 9:27am in San Francisco (SFO)

    Layover in San Francisco for 6h 53m

    Thu Apr 17th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$808
    Frontier AirlinesTAP Portugal
    8:23am - 11:25am
    Fri May 2nd 2025
    19h 2m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Fri May 2nd 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Fri May 2nd 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 5m Arrive at 11:25am in Lisbon (LIS)

  • US$809
    Frontier AirlinesTAP Portugal
    7:55am - 11:35am
    Thu Apr 3rd 2025
    19h 40m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Thu Apr 3rd 2025 Frontier Airlines · F9 2677 Depart at 7:55am from Ontario (ONT) Fly for 1h 32m Arrive at 9:27am in San Francisco (SFO)

    Layover in San Francisco for 6h 53m

    Thu Apr 3rd 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$809
    Frontier AirlinesTAP Portugal
    8:26am - 2:10pm
    Fri Mar 7th 2025
    21h 44m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Fri Mar 7th 2025 Frontier Airlines · F9 2677 Depart at 8:26am from Ontario (ONT) Fly for 1h 36m Arrive at 10:02am in San Francisco (SFO)

    Layover in San Francisco for 9h 13m

    Fri Mar 7th 2025 TAP Portugal · TP 238 Depart at 7:15pm from San Francisco (SFO) Fly for 10h 55m Arrive at 2:10pm in Lisbon (LIS)

  • US$810
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Thu Apr 24th 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Thu Apr 24th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Thu Apr 24th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$810
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Thu May 1st 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Thu May 1st 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Thu May 1st 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$815
    Frontier AirlinesTAP Portugal
    8:26am - 2:10pm
    Fri Mar 14th 2025
    22h 44m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Fri Mar 14th 2025 Frontier Airlines · F9 2677 Depart at 8:26am from Ontario (ONT) Fly for 1h 36m Arrive at 10:02am in San Francisco (SFO)

    Layover in San Francisco for 10h 13m

    Fri Mar 14th 2025 TAP Portugal · TP 238 Depart at 8:15pm from San Francisco (SFO) Fly for 10h 55m Arrive at 2:10pm in Lisbon (LIS)

  • US$819
    Frontier AirlinesTAP Portugal
    8:23am - 11:25am
    Fri Apr 25th 2025
    19h 2m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Fri Apr 25th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Fri Apr 25th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 5m Arrive at 11:25am in Lisbon (LIS)

  • US$823
    Frontier AirlinesTAP Portugal
    8:26am - 11:25am
    Fri Apr 4th 2025
    18h 59m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Fri Apr 4th 2025 Frontier Airlines · F9 2677 Depart at 8:26am from Ontario (ONT) Fly for 1h 41m Arrive at 10:07am in San Francisco (SFO)

    Layover in San Francisco for 6h 13m

    Fri Apr 4th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 5m Arrive at 11:25am in Lisbon (LIS)

  • US$838
    Frontier AirlinesTAP Portugal
    8:26am - 2:10pm
    Fri Mar 28th 2025
    22h 44m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Fri Mar 28th 2025 Frontier Airlines · F9 2677 Depart at 8:26am from Ontario (ONT) Fly for 1h 36m Arrive at 10:02am in San Francisco (SFO)

    Layover in San Francisco for 10h 13m

    Fri Mar 28th 2025 TAP Portugal · TP 238 Depart at 8:15pm from San Francisco (SFO) Fly for 10h 55m Arrive at 2:10pm in Lisbon (LIS)

  • US$844
    Frontier AirlinesTAP Portugal
    8:26am - 2:10pm
    Fri Mar 21st 2025
    22h 44m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Fri Mar 21st 2025 Frontier Airlines · F9 2677 Depart at 8:26am from Ontario (ONT) Fly for 1h 36m Arrive at 10:02am in San Francisco (SFO)

    Layover in San Francisco for 10h 13m

    Fri Mar 21st 2025 TAP Portugal · TP 238 Depart at 8:15pm from San Francisco (SFO) Fly for 10h 55m Arrive at 2:10pm in Lisbon (LIS)

  • US$865
    Frontier AirlinesTAP Portugal
    8:23am - 11:25am
    Fri May 9th 2025
    19h 2m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Fri May 9th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Fri May 9th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 5m Arrive at 11:25am in Lisbon (LIS)

  • US$865
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Sat May 10th 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Sat May 10th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Sat May 10th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$870
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Thu May 15th 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Thu May 15th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Thu May 15th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$871
    Frontier AirlinesTAP Portugal
    8:23am - 11:25am
    Fri May 16th 2025
    19h 2m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Fri May 16th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Fri May 16th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 5m Arrive at 11:25am in Lisbon (LIS)

  • US$905
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Mon Aug 18th 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Mon Aug 18th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Mon Aug 18th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$905
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Mon Aug 11th 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Mon Aug 11th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Mon Aug 11th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$914
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Mon Jun 23rd 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Mon Jun 23rd 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Mon Jun 23rd 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$916
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Mon Aug 4th 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Mon Aug 4th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Mon Aug 4th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$916
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Mon Jul 28th 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Mon Jul 28th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Mon Jul 28th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$916
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Mon Jul 21st 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Mon Jul 21st 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Mon Jul 21st 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$937
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Sat Aug 9th 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Sat Aug 9th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Sat Aug 9th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$938
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Sat May 24th 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Sat May 24th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Sat May 24th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

  • US$941
    Frontier AirlinesTAP Portugal
    8:23am - 11:35am
    Sat Aug 16th 2025
    19h 12m
    Ontario (ONT) → Lisbon (LIS)
    1 Stop

    Sat Aug 16th 2025 Frontier Airlines · F9 2677 Depart at 8:23am from Ontario (ONT) Fly for 1h 38m Arrive at 10:01am in San Francisco (SFO)

    Layover in San Francisco for 6h 19m

    Sat Aug 16th 2025 TAP Portugal · TP 238 Depart at 4:20pm from San Francisco (SFO) Fly for 11h 15m Arrive at 11:35am in Lisbon (LIS)

@sarahbb1
Sarah Belizaire
@sarahbb1

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@eyupitsjohn
John Ford
@eyupitsjohn

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@oamingsonaa
Roaming Sonaa
@roamingsonaa

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@andy_travels
Andy Travels
@andy_travels

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@travelwitbender
Travel With Bender
@travelwitbender

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@travel.with.wes
Wesley Mergard
@travel.with.wes

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About FlightList

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