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Route overview: Washington, DC to Lisbon (LIS) flight deals

Dulles → Lisbon

Dec 24, 2026 · choose your return date

IAD → LIS1 adulteconomyOne way and round trips

28 flight options · 3 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Dec 24, 2026 · One wayTAP Air PortugalNonstop$594.00 Dec 24, 2026 · One wayAir CanadaUp to 1 stop each way$783.00 Dec 24, 2026 – Dec 26, 2026 · 2 nightsTAP Air PortugalNonstop$972.00 Dec 24, 2026 – Dec 26, 2026 · 2 nightsAir CanadaUp to 1 stop each way$999.00 Dec 24, 2026 – Dec 27, 2026 · 3 nightsTAP Air PortugalNonstop$972.00 Dec 24, 2026 – Dec 27, 2026 · 3 nightsAir CanadaUp to 1 stop each way$999.00 Dec 24, 2026 – Dec 28, 2026 · 4 nightsTAP Air PortugalNonstop$972.00 Dec 24, 2026 – Dec 28, 2026 · 4 nightsAir CanadaUp to 1 stop each way$999.00 Dec 24, 2026 – Dec 29, 2026 · 5 nightsTAP Air PortugalNonstop$972.00 Dec 24, 2026 – Dec 29, 2026 · 5 nightsAir CanadaUp to 1 stop each way$999.00 Dec 24, 2026 – Dec 30, 2026 · 6 nightsTAP Air PortugalNonstop$972.00 Dec 24, 2026 – Dec 30, 2026 · 6 nightsAir CanadaUp to 1 stop each way$999.00 Dec 24, 2026 – Dec 31, 2026 · 7 nightsTAP Air PortugalNonstop$972.00 Dec 24, 2026 – Dec 31, 2026 · 7 nightsAir CanadaUp to 1 stop each way$999.00 Dec 24, 2026 – Jan 1, 2027 · 8 nightsTAP Air PortugalUp to 1 stop each way$908.40 Dec 24, 2026 – Jan 1, 2027 · 8 nightsUnited AirlinesNonstop$1117.75 Dec 24, 2026 – Jan 2, 2027 · 9 nightsTAP Air PortugalNonstop$946.80 Dec 24, 2026 – Jan 2, 2027 · 9 nightsAir CanadaUp to 1 stop each way$973.10 Dec 24, 2026 – Jan 3, 2027 · 10 nightsTAP Air PortugalNonstop$946.80 Dec 24, 2026 – Jan 3, 2027 · 10 nightsAir CanadaUp to 1 stop each way$973.10 Dec 24, 2026 – Jan 4, 2027 · 11 nightsTAP Air PortugalNonstop$946.80 Dec 24, 2026 – Jan 4, 2027 · 11 nightsAir CanadaUp to 1 stop each way$973.10 Dec 24, 2026 – Jan 5, 2027 · 12 nightsTAP Air PortugalNonstop$828.00 Dec 24, 2026 – Jan 5, 2027 · 12 nightsAir CanadaUp to 1 stop each way$851.00 Dec 24, 2026 – Jan 6, 2027 · 13 nightsTAP Air PortugalNonstop$828.00 Dec 24, 2026 – Jan 6, 2027 · 13 nightsAir CanadaUp to 1 stop each way$851.00 Dec 24, 2026 – Jan 7, 2027 · 14 nightsTAP Air PortugalNonstop$828.00 Dec 24, 2026 – Jan 7, 2027 · 14 nightsAir CanadaUp to 1 stop each way$851.00

Flights for your trip

  1. Thu, Dec 24 · One way

    TAP Air Portugal
    5:25 pmIAD
    7h 10m
    Nonstop
    5:35 am+1LIS

    One-way total · 1 adult · Taxes included

  2. Thu, Dec 24 · One way

    Air Canada
    4:30 pmIAD
    11h 25m
    YYZ · 2h 48m
    8:55 am+1LIS

    One-way total · 1 adult · Taxes included

  3. Thu, Dec 24 – Sat, Dec 26

    TAP Air Portugal
    5:25 pmIAD
    7h 10m
    Nonstop
    5:35 am+1LIS
    TAP Air Portugal
    11:25 amLIS
    8h 50m
    Nonstop
    3:15 pmIAD

    Round-trip total · 1 adult · Taxes included

  4. Thu, Dec 24 – Sat, Dec 26

    Air Canada
    4:30 pmIAD
    11h 25m
    YYZ · 2h 48m
    8:55 am+1LIS
    Air Canada
    12:50 pmLIS
    12h 33m
    YUL · 2h 30m
    8:23 pmIAD

    Round-trip total · 1 adult · Taxes included

  5. Thu, Dec 24 – Sun, Dec 27

    TAP Air Portugal
    5:25 pmIAD
    7h 10m
    Nonstop
    5:35 am+1LIS
    TAP Air Portugal
    4:45 pmLIS
    8h 50m
    Nonstop
    8:35 pmIAD

    Round-trip total · 1 adult · Taxes included

  6. Thu, Dec 24 – Sun, Dec 27

    Air Canada
    4:30 pmIAD
    11h 25m
    YYZ · 2h 48m
    8:55 am+1LIS
    Air Canada
    12:50 pmLIS
    12h 33m
    YUL · 2h 30m
    8:23 pmIAD

    Round-trip total · 1 adult · Taxes included

  7. Thu, Dec 24 – Mon, Dec 28

    TAP Air Portugal
    5:25 pmIAD
    7h 10m
    Nonstop
    5:35 am+1LIS
    TAP Air Portugal
    11:25 amLIS
    8h 50m
    Nonstop
    3:15 pmIAD

    Round-trip total · 1 adult · Taxes included

  8. Thu, Dec 24 – Mon, Dec 28

    Air Canada
    4:30 pmIAD
    11h 25m
    YYZ · 2h 48m
    8:55 am+1LIS
    Air Canada
    12:50 pmLIS
    12h 33m
    YUL · 2h 30m
    8:23 pmIAD

    Round-trip total · 1 adult · Taxes included

  9. Thu, Dec 24 – Tue, Dec 29

    TAP Air Portugal
    5:25 pmIAD
    7h 10m
    Nonstop
    5:35 am+1LIS
    TAP Air Portugal
    10:50 amLIS
    8h 50m
    Nonstop
    2:40 pmIAD

    Round-trip total · 1 adult · Taxes included

  10. Thu, Dec 24 – Tue, Dec 29

    Air Canada
    4:30 pmIAD
    11h 25m
    YYZ · 2h 48m
    8:55 am+1LIS
    Air Canada
    12:50 pmLIS
    12h 33m
    YUL · 2h 30m
    8:23 pmIAD

    Round-trip total · 1 adult · Taxes included

  11. Thu, Dec 24 – Wed, Dec 30

    TAP Air Portugal
    5:25 pmIAD
    7h 10m
    Nonstop
    5:35 am+1LIS
    TAP Air Portugal
    4:40 pmLIS
    8h 50m
    Nonstop
    8:30 pmIAD

    Round-trip total · 1 adult · Taxes included

  12. Thu, Dec 24 – Wed, Dec 30

    Air Canada
    4:30 pmIAD
    11h 25m
    YYZ · 2h 48m
    8:55 am+1LIS
    Air Canada
    12:50 pmLIS
    12h 33m
    YUL · 2h 30m
    8:23 pmIAD

    Round-trip total · 1 adult · Taxes included

  13. Thu, Dec 24 – Fri, Jan 1

    TAP Air Portugal
    5:25 pmIAD
    7h 10m
    Nonstop
    5:35 am+1LIS
    TAP Air Portugal
    7:30 amLIS
    12h 55m
    DUB · 1h 40m
    3:25 pmIAD

    Round-trip total · 1 adult · Taxes included

  14. Thu, Dec 24 – Fri, Jan 1

    United Airlines
    10:30 pmIAD
    6h 50m
    Nonstop
    10:20 am+1LIS
    United Airlines
    12:20 pmLIS
    8h 20m
    Nonstop
    3:40 pmIAD

    Round-trip total · 1 adult · Taxes included

  15. Thu, Dec 24 – Sat, Jan 2

    TAP Air Portugal
    5:25 pmIAD
    7h 10m
    Nonstop
    5:35 am+1LIS
    TAP Air Portugal
    11:25 amLIS
    8h 50m
    Nonstop
    3:15 pmIAD

    Round-trip total · 1 adult · Taxes included

  16. Thu, Dec 24 – Sat, Jan 2

    Air Canada
    4:30 pmIAD
    11h 25m
    YYZ · 2h 48m
    8:55 am+1LIS
    Air Canada
    12:50 pmLIS
    12h 33m
    YUL · 2h 30m
    8:23 pmIAD

    Round-trip total · 1 adult · Taxes included

  17. Thu, Dec 24 – Sun, Jan 3

    TAP Air Portugal
    5:25 pmIAD
    7h 10m
    Nonstop
    5:35 am+1LIS
    TAP Air Portugal
    4:45 pmLIS
    8h 50m
    Nonstop
    8:35 pmIAD

    Round-trip total · 1 adult · Taxes included

  18. Thu, Dec 24 – Sun, Jan 3

    Air Canada
    4:30 pmIAD
    11h 25m
    YYZ · 2h 48m
    8:55 am+1LIS
    Air Canada
    12:50 pmLIS
    12h 33m
    YUL · 2h 30m
    8:23 pmIAD

    Round-trip total · 1 adult · Taxes included

  19. Thu, Dec 24 – Mon, Jan 4

    TAP Air Portugal
    5:25 pmIAD
    7h 10m
    Nonstop
    5:35 am+1LIS
    TAP Air Portugal
    11:25 amLIS
    8h 50m
    Nonstop
    3:15 pmIAD

    Round-trip total · 1 adult · Taxes included

  20. Thu, Dec 24 – Mon, Jan 4

    Air Canada
    4:30 pmIAD
    11h 25m
    YYZ · 2h 48m
    8:55 am+1LIS
    Air Canada
    12:50 pmLIS
    12h 33m
    YUL · 2h 30m
    8:23 pmIAD

    Round-trip total · 1 adult · Taxes included

  21. Thu, Dec 24 – Tue, Jan 5

    TAP Air Portugal
    5:25 pmIAD
    7h 10m
    Nonstop
    5:35 am+1LIS
    TAP Air Portugal
    10:50 amLIS
    8h 50m
    Nonstop
    2:40 pmIAD

    Round-trip total · 1 adult · Taxes included

  22. Thu, Dec 24 – Tue, Jan 5

    Air Canada
    4:30 pmIAD
    11h 25m
    YYZ · 2h 48m
    8:55 am+1LIS
    Air Canada
    12:50 pmLIS
    12h 33m
    YUL · 2h 30m
    8:23 pmIAD

    Round-trip total · 1 adult · Taxes included

  23. Thu, Dec 24 – Thu, Jan 7

    TAP Air Portugal
    5:25 pmIAD
    7h 10m
    Nonstop
    5:35 am+1LIS
    TAP Air Portugal
    4:40 pmLIS
    8h 50m
    Nonstop
    8:30 pmIAD

    Round-trip total · 1 adult · Taxes included

  24. Thu, Dec 24 – Thu, Jan 7

    Air Canada
    4:30 pmIAD
    11h 25m
    YYZ · 2h 48m
    8:55 am+1LIS
    Air Canada
    12:50 pmLIS
    12h 33m
    YUL · 2h 30m
    8:23 pmIAD

    Round-trip total · 1 adult · Taxes included

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IAD ⇄ LIS

Economy

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Explore this route

All dates for this routeDec 23, 2026 · Return optionsDec 25, 2026 · Return optionsHotels in Lisbon with Axel
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Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-24 · one wayTAP Air PortugalTP232Axel-exclusive $594.002026-10-29T01:07:18Z
2026-12-24 · one wayAir CanadaAC8619 + AC810Axel-exclusive $783.002026-10-29T01:07:18Z
2026-12-24 → 2026-12-26TAP Air PortugalTP232 / TP231Axel-exclusive $972.002026-10-29T01:07:18Z
2026-12-24 → 2026-12-26Air CanadaAC8619 + AC810 / AC813 + AC8725Axel-exclusive $999.002026-10-29T01:07:18Z
2026-12-24 → 2026-12-27TAP Air PortugalTP232 / TP233Axel-exclusive $972.002026-10-29T01:07:18Z
2026-12-24 → 2026-12-27Air CanadaAC8619 + AC810 / AC813 + AC8725Axel-exclusive $999.002026-10-29T01:07:18Z
2026-12-24 → 2026-12-28TAP Air PortugalTP232 / TP231Axel-exclusive $972.002026-10-29T01:07:18Z
2026-12-24 → 2026-12-28Air CanadaAC8619 + AC810 / AC813 + AC8725Axel-exclusive $999.002026-10-29T01:07:18Z
2026-12-24 → 2026-12-29TAP Air PortugalTP232 / TP231Axel-exclusive $972.002026-10-29T01:07:18Z
2026-12-24 → 2026-12-29Air CanadaAC8619 + AC810 / AC813 + AC8725Axel-exclusive $999.002026-10-29T01:07:18Z
2026-12-24 → 2026-12-30TAP Air PortugalTP232 / TP233Axel-exclusive $972.002026-10-29T01:07:18Z
2026-12-24 → 2026-12-30Air CanadaAC8619 + AC810 / AC813 + AC8725Axel-exclusive $999.002026-10-29T01:07:18Z
2026-12-24 → 2026-12-31TAP Air PortugalTP232 / TP233Axel-exclusive $972.002026-10-29T01:07:18Z
2026-12-24 → 2026-12-31Air CanadaAC8619 + AC810 / AC813 + AC8725Axel-exclusive $999.002026-10-29T01:07:18Z
2026-12-24 → 2027-01-01United AirlinesUA942 / UA943Axel-exclusive $1117.752026-10-29T01:07:18Z
2026-12-24 → 2027-01-01TAP Air PortugalTP232 / TP1322 + UA229Axel-exclusive $908.402026-10-29T01:07:18Z
2026-12-24 → 2027-01-02TAP Air PortugalTP232 / TP231Axel-exclusive $946.802026-10-29T01:07:18Z
2026-12-24 → 2027-01-02Air CanadaAC8619 + AC810 / AC813 + AC8725Axel-exclusive $973.102026-10-29T01:07:18Z
2026-12-24 → 2027-01-03TAP Air PortugalTP232 / TP233Axel-exclusive $946.802026-10-29T01:07:18Z
2026-12-24 → 2027-01-03Air CanadaAC8619 + AC810 / AC813 + AC8725Axel-exclusive $973.102026-10-29T01:07:18Z
2026-12-24 → 2027-01-04TAP Air PortugalTP232 / TP231Axel-exclusive $946.802026-10-29T01:07:18Z
2026-12-24 → 2027-01-04Air CanadaAC8619 + AC810 / AC813 + AC8725Axel-exclusive $973.102026-10-29T01:07:18Z
2026-12-24 → 2027-01-05TAP Air PortugalTP232 / TP231Axel-exclusive $828.002026-10-29T01:07:18Z
2026-12-24 → 2027-01-05Air CanadaAC8619 + AC810 / AC813 + AC8725Axel-exclusive $851.002026-10-29T01:07:18Z
2026-12-24 → 2027-01-06TAP Air PortugalTP232 / TP233Axel-exclusive $828.002026-10-29T01:07:18Z
2026-12-24 → 2027-01-06Air CanadaAC8619 + AC810 / AC813 + AC8725Axel-exclusive $851.002026-10-29T01:07:18Z
2026-12-24 → 2027-01-07TAP Air PortugalTP232 / TP233Axel-exclusive $828.002026-10-29T01:07:18Z
2026-12-24 → 2027-01-07Air CanadaAC8619 + AC810 / AC813 + AC8725Axel-exclusive $851.002026-10-29T01:07:18Z

Route overview: Washington, DC to Lisbon (LIS) flight deals

2026-12-24 · one way · Axel-exclusive $594.00

  • TAP Air Portugal TP232: IAD 2026-12-24 17:25:00 → LIS 2026-12-25 05:35:00; nonstop; 430 minutes. Local airport times.

2026-12-24 · one way · Axel-exclusive $783.00

  • Air Canada AC8619 / AC810: IAD 2026-12-24 16:30:00 → LIS 2026-12-25 08:55:00; 1 stop(s) via YYZ; 685 minutes. Local airport times.
    • AC8619: IAD 2026-12-24 16:30:00 → YYZ 2026-12-24 17:57:00; layover at YYZ: 168 minutes.
    • AC810: YYZ 2026-12-24 20:45:00 → LIS 2026-12-25 08:55:00.

2026-12-24 → 2026-12-26 · Axel-exclusive $972.00

  • TAP Air Portugal TP232: IAD 2026-12-24 17:25:00 → LIS 2026-12-25 05:35:00; nonstop; 430 minutes. Local airport times.
  • TAP Air Portugal TP231: LIS 2026-12-26 11:25:00 → IAD 2026-12-26 15:15:00; nonstop; 530 minutes. Local airport times.

2026-12-24 → 2026-12-26 · Axel-exclusive $999.00

  • Air Canada AC8619 / AC810: IAD 2026-12-24 16:30:00 → LIS 2026-12-25 08:55:00; 1 stop(s) via YYZ; 685 minutes. Local airport times.
    • AC8619: IAD 2026-12-24 16:30:00 → YYZ 2026-12-24 17:57:00; layover at YYZ: 168 minutes.
    • AC810: YYZ 2026-12-24 20:45:00 → LIS 2026-12-25 08:55:00.
  • Air Canada AC813 / AC8725: LIS 2026-12-26 12:50:00 → IAD 2026-12-26 20:23:00; 1 stop(s) via YUL; 753 minutes. Local airport times.
    • AC813: LIS 2026-12-26 12:50:00 → YUL 2026-12-26 15:55:00; layover at YUL: 150 minutes.
    • AC8725: YUL 2026-12-26 18:25:00 → IAD 2026-12-26 20:23:00.

2026-12-24 → 2026-12-27 · Axel-exclusive $972.00

  • TAP Air Portugal TP232: IAD 2026-12-24 17:25:00 → LIS 2026-12-25 05:35:00; nonstop; 430 minutes. Local airport times.
  • TAP Air Portugal TP233: LIS 2026-12-27 16:45:00 → IAD 2026-12-27 20:35:00; nonstop; 530 minutes. Local airport times.

2026-12-24 → 2026-12-27 · Axel-exclusive $999.00

  • Air Canada AC8619 / AC810: IAD 2026-12-24 16:30:00 → LIS 2026-12-25 08:55:00; 1 stop(s) via YYZ; 685 minutes. Local airport times.
    • AC8619: IAD 2026-12-24 16:30:00 → YYZ 2026-12-24 17:57:00; layover at YYZ: 168 minutes.
    • AC810: YYZ 2026-12-24 20:45:00 → LIS 2026-12-25 08:55:00.
  • Air Canada AC813 / AC8725: LIS 2026-12-27 12:50:00 → IAD 2026-12-27 20:23:00; 1 stop(s) via YUL; 753 minutes. Local airport times.
    • AC813: LIS 2026-12-27 12:50:00 → YUL 2026-12-27 15:55:00; layover at YUL: 150 minutes.
    • AC8725: YUL 2026-12-27 18:25:00 → IAD 2026-12-27 20:23:00.

2026-12-24 → 2026-12-28 · Axel-exclusive $972.00

  • TAP Air Portugal TP232: IAD 2026-12-24 17:25:00 → LIS 2026-12-25 05:35:00; nonstop; 430 minutes. Local airport times.
  • TAP Air Portugal TP231: LIS 2026-12-28 11:25:00 → IAD 2026-12-28 15:15:00; nonstop; 530 minutes. Local airport times.

2026-12-24 → 2026-12-28 · Axel-exclusive $999.00

  • Air Canada AC8619 / AC810: IAD 2026-12-24 16:30:00 → LIS 2026-12-25 08:55:00; 1 stop(s) via YYZ; 685 minutes. Local airport times.
    • AC8619: IAD 2026-12-24 16:30:00 → YYZ 2026-12-24 17:57:00; layover at YYZ: 168 minutes.
    • AC810: YYZ 2026-12-24 20:45:00 → LIS 2026-12-25 08:55:00.
  • Air Canada AC813 / AC8725: LIS 2026-12-28 12:50:00 → IAD 2026-12-28 20:23:00; 1 stop(s) via YUL; 753 minutes. Local airport times.
    • AC813: LIS 2026-12-28 12:50:00 → YUL 2026-12-28 15:55:00; layover at YUL: 150 minutes.
    • AC8725: YUL 2026-12-28 18:25:00 → IAD 2026-12-28 20:23:00.

2026-12-24 → 2026-12-29 · Axel-exclusive $972.00

  • TAP Air Portugal TP232: IAD 2026-12-24 17:25:00 → LIS 2026-12-25 05:35:00; nonstop; 430 minutes. Local airport times.
  • TAP Air Portugal TP231: LIS 2026-12-29 10:50:00 → IAD 2026-12-29 14:40:00; nonstop; 530 minutes. Local airport times.

2026-12-24 → 2026-12-29 · Axel-exclusive $999.00

  • Air Canada AC8619 / AC810: IAD 2026-12-24 16:30:00 → LIS 2026-12-25 08:55:00; 1 stop(s) via YYZ; 685 minutes. Local airport times.
    • AC8619: IAD 2026-12-24 16:30:00 → YYZ 2026-12-24 17:57:00; layover at YYZ: 168 minutes.
    • AC810: YYZ 2026-12-24 20:45:00 → LIS 2026-12-25 08:55:00.
  • Air Canada AC813 / AC8725: LIS 2026-12-29 12:50:00 → IAD 2026-12-29 20:23:00; 1 stop(s) via YUL; 753 minutes. Local airport times.
    • AC813: LIS 2026-12-29 12:50:00 → YUL 2026-12-29 15:55:00; layover at YUL: 150 minutes.
    • AC8725: YUL 2026-12-29 18:25:00 → IAD 2026-12-29 20:23:00.

2026-12-24 → 2026-12-30 · Axel-exclusive $972.00

  • TAP Air Portugal TP232: IAD 2026-12-24 17:25:00 → LIS 2026-12-25 05:35:00; nonstop; 430 minutes. Local airport times.
  • TAP Air Portugal TP233: LIS 2026-12-30 16:40:00 → IAD 2026-12-30 20:30:00; nonstop; 530 minutes. Local airport times.

2026-12-24 → 2026-12-30 · Axel-exclusive $999.00

  • Air Canada AC8619 / AC810: IAD 2026-12-24 16:30:00 → LIS 2026-12-25 08:55:00; 1 stop(s) via YYZ; 685 minutes. Local airport times.
    • AC8619: IAD 2026-12-24 16:30:00 → YYZ 2026-12-24 17:57:00; layover at YYZ: 168 minutes.
    • AC810: YYZ 2026-12-24 20:45:00 → LIS 2026-12-25 08:55:00.
  • Air Canada AC813 / AC8725: LIS 2026-12-30 12:50:00 → IAD 2026-12-30 20:23:00; 1 stop(s) via YUL; 753 minutes. Local airport times.
    • AC813: LIS 2026-12-30 12:50:00 → YUL 2026-12-30 15:55:00; layover at YUL: 150 minutes.
    • AC8725: YUL 2026-12-30 18:25:00 → IAD 2026-12-30 20:23:00.

2026-12-24 → 2027-01-01 · Axel-exclusive $908.40

  • TAP Air Portugal TP232: IAD 2026-12-24 17:25:00 → LIS 2026-12-25 05:35:00; nonstop; 430 minutes. Local airport times.
  • TAP Air Portugal TP1322 / UA229: LIS 2027-01-01 07:30:00 → IAD 2027-01-01 15:25:00; 1 stop(s) via DUB; 775 minutes. Local airport times.
    • TP1322: LIS 2027-01-01 07:30:00 → DUB 2027-01-01 10:25:00; layover at DUB: 100 minutes.
    • UA229: DUB 2027-01-01 12:05:00 → IAD 2027-01-01 15:25:00.

2026-12-24 → 2027-01-01 · Axel-exclusive $1117.75

  • United Airlines UA942: IAD 2026-12-24 22:30:00 → LIS 2026-12-25 10:20:00; nonstop; 410 minutes. Local airport times.
  • United Airlines UA943: LIS 2027-01-01 12:20:00 → IAD 2027-01-01 15:40:00; nonstop; 500 minutes. Local airport times.

2026-12-24 → 2027-01-02 · Axel-exclusive $946.80

  • TAP Air Portugal TP232: IAD 2026-12-24 17:25:00 → LIS 2026-12-25 05:35:00; nonstop; 430 minutes. Local airport times.
  • TAP Air Portugal TP231: LIS 2027-01-02 11:25:00 → IAD 2027-01-02 15:15:00; nonstop; 530 minutes. Local airport times.

2026-12-24 → 2027-01-02 · Axel-exclusive $973.10

  • Air Canada AC8619 / AC810: IAD 2026-12-24 16:30:00 → LIS 2026-12-25 08:55:00; 1 stop(s) via YYZ; 685 minutes. Local airport times.
    • AC8619: IAD 2026-12-24 16:30:00 → YYZ 2026-12-24 17:57:00; layover at YYZ: 168 minutes.
    • AC810: YYZ 2026-12-24 20:45:00 → LIS 2026-12-25 08:55:00.
  • Air Canada AC813 / AC8725: LIS 2027-01-02 12:50:00 → IAD 2027-01-02 20:23:00; 1 stop(s) via YUL; 753 minutes. Local airport times.
    • AC813: LIS 2027-01-02 12:50:00 → YUL 2027-01-02 15:55:00; layover at YUL: 150 minutes.
    • AC8725: YUL 2027-01-02 18:25:00 → IAD 2027-01-02 20:23:00.

2026-12-24 → 2027-01-03 · Axel-exclusive $946.80

  • TAP Air Portugal TP232: IAD 2026-12-24 17:25:00 → LIS 2026-12-25 05:35:00; nonstop; 430 minutes. Local airport times.
  • TAP Air Portugal TP233: LIS 2027-01-03 16:45:00 → IAD 2027-01-03 20:35:00; nonstop; 530 minutes. Local airport times.

2026-12-24 → 2027-01-03 · Axel-exclusive $973.10

  • Air Canada AC8619 / AC810: IAD 2026-12-24 16:30:00 → LIS 2026-12-25 08:55:00; 1 stop(s) via YYZ; 685 minutes. Local airport times.
    • AC8619: IAD 2026-12-24 16:30:00 → YYZ 2026-12-24 17:57:00; layover at YYZ: 168 minutes.
    • AC810: YYZ 2026-12-24 20:45:00 → LIS 2026-12-25 08:55:00.
  • Air Canada AC813 / AC8725: LIS 2027-01-03 12:50:00 → IAD 2027-01-03 20:23:00; 1 stop(s) via YUL; 753 minutes. Local airport times.
    • AC813: LIS 2027-01-03 12:50:00 → YUL 2027-01-03 15:55:00; layover at YUL: 150 minutes.
    • AC8725: YUL 2027-01-03 18:25:00 → IAD 2027-01-03 20:23:00.

2026-12-24 → 2027-01-04 · Axel-exclusive $946.80

  • TAP Air Portugal TP232: IAD 2026-12-24 17:25:00 → LIS 2026-12-25 05:35:00; nonstop; 430 minutes. Local airport times.
  • TAP Air Portugal TP231: LIS 2027-01-04 11:25:00 → IAD 2027-01-04 15:15:00; nonstop; 530 minutes. Local airport times.

2026-12-24 → 2027-01-04 · Axel-exclusive $973.10

  • Air Canada AC8619 / AC810: IAD 2026-12-24 16:30:00 → LIS 2026-12-25 08:55:00; 1 stop(s) via YYZ; 685 minutes. Local airport times.
    • AC8619: IAD 2026-12-24 16:30:00 → YYZ 2026-12-24 17:57:00; layover at YYZ: 168 minutes.
    • AC810: YYZ 2026-12-24 20:45:00 → LIS 2026-12-25 08:55:00.
  • Air Canada AC813 / AC8725: LIS 2027-01-04 12:50:00 → IAD 2027-01-04 20:23:00; 1 stop(s) via YUL; 753 minutes. Local airport times.
    • AC813: LIS 2027-01-04 12:50:00 → YUL 2027-01-04 15:55:00; layover at YUL: 150 minutes.
    • AC8725: YUL 2027-01-04 18:25:00 → IAD 2027-01-04 20:23:00.

2026-12-24 → 2027-01-05 · Axel-exclusive $828.00

  • TAP Air Portugal TP232: IAD 2026-12-24 17:25:00 → LIS 2026-12-25 05:35:00; nonstop; 430 minutes. Local airport times.
  • TAP Air Portugal TP231: LIS 2027-01-05 10:50:00 → IAD 2027-01-05 14:40:00; nonstop; 530 minutes. Local airport times.

2026-12-24 → 2027-01-05 · Axel-exclusive $851.00

  • Air Canada AC8619 / AC810: IAD 2026-12-24 16:30:00 → LIS 2026-12-25 08:55:00; 1 stop(s) via YYZ; 685 minutes. Local airport times.
    • AC8619: IAD 2026-12-24 16:30:00 → YYZ 2026-12-24 17:57:00; layover at YYZ: 168 minutes.
    • AC810: YYZ 2026-12-24 20:45:00 → LIS 2026-12-25 08:55:00.
  • Air Canada AC813 / AC8725: LIS 2027-01-05 12:50:00 → IAD 2027-01-05 20:23:00; 1 stop(s) via YUL; 753 minutes. Local airport times.
    • AC813: LIS 2027-01-05 12:50:00 → YUL 2027-01-05 15:55:00; layover at YUL: 150 minutes.
    • AC8725: YUL 2027-01-05 18:25:00 → IAD 2027-01-05 20:23:00.

2026-12-24 → 2027-01-07 · Axel-exclusive $828.00

  • TAP Air Portugal TP232: IAD 2026-12-24 17:25:00 → LIS 2026-12-25 05:35:00; nonstop; 430 minutes. Local airport times.
  • TAP Air Portugal TP233: LIS 2027-01-07 16:40:00 → IAD 2027-01-07 20:30:00; nonstop; 530 minutes. Local airport times.

2026-12-24 → 2027-01-07 · Axel-exclusive $851.00

  • Air Canada AC8619 / AC810: IAD 2026-12-24 16:30:00 → LIS 2026-12-25 08:55:00; 1 stop(s) via YYZ; 685 minutes. Local airport times.
    • AC8619: IAD 2026-12-24 16:30:00 → YYZ 2026-12-24 17:57:00; layover at YYZ: 168 minutes.
    • AC810: YYZ 2026-12-24 20:45:00 → LIS 2026-12-25 08:55:00.
  • Air Canada AC813 / AC8725: LIS 2027-01-07 12:50:00 → IAD 2027-01-07 20:23:00; 1 stop(s) via YUL; 753 minutes. Local airport times.
    • AC813: LIS 2027-01-07 12:50:00 → YUL 2027-01-07 15:55:00; layover at YUL: 150 minutes.
    • AC8725: YUL 2027-01-07 18:25:00 → IAD 2027-01-07 20:23:00.

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For AI assistants

  • This page: Dulles (IAD) to Lisbon (LIS) · Dec 24, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Washington, DC to Lisbon (LIS) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.