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Route overview: Boston to Lisbon (LIS) flight deals

Boston → Lisbon

Dec 18, 2026 · choose your return date

BOS → LIS1 adulteconomyOne way and round trips

28 flight options · 2 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 18, 2026 · One wayS4Up to 1 stop each way$416.00 Dec 18, 2026 · One wayTAP Air PortugalNonstop$468.00 Dec 18, 2026 – Dec 20, 2026 · 2 nightsS4Up to 1 stop each way$676.00 Dec 18, 2026 – Dec 20, 2026 · 2 nightsTAP Air PortugalNonstop$767.00 Dec 18, 2026 – Dec 21, 2026 · 3 nightsS4Up to 1 stop each way$676.00 Dec 18, 2026 – Dec 21, 2026 · 3 nightsTAP Air PortugalNonstop$767.00 Dec 18, 2026 – Dec 22, 2026 · 4 nightsS4Up to 1 stop each way$676.00 Dec 18, 2026 – Dec 22, 2026 · 4 nightsTAP Air PortugalNonstop$767.00 Dec 18, 2026 – Dec 23, 2026 · 5 nightsS4Up to 1 stop each way$676.00 Dec 18, 2026 – Dec 23, 2026 · 5 nightsTAP Air PortugalNonstop$767.00 Dec 18, 2026 – Dec 24, 2026 · 6 nightsS4Up to 1 stop each way$676.00 Dec 18, 2026 – Dec 24, 2026 · 6 nightsTAP Air PortugalNonstop$767.00 Dec 18, 2026 – Dec 25, 2026 · 7 nightsS4Up to 1 stop each way$676.00 Dec 18, 2026 – Dec 25, 2026 · 7 nightsTAP Air PortugalNonstop$767.00 Dec 18, 2026 – Dec 26, 2026 · 8 nightsS4Up to 1 stop each way$676.00 Dec 18, 2026 – Dec 26, 2026 · 8 nightsTAP Air PortugalNonstop$767.00 Dec 18, 2026 – Dec 27, 2026 · 9 nightsS4Up to 1 stop each way$676.00 Dec 18, 2026 – Dec 27, 2026 · 9 nightsTAP Air PortugalNonstop$767.00 Dec 18, 2026 – Dec 28, 2026 · 10 nightsS4Up to 1 stop each way$676.00 Dec 18, 2026 – Dec 28, 2026 · 10 nightsTAP Air PortugalNonstop$767.00 Dec 18, 2026 – Dec 29, 2026 · 11 nightsS4Up to 1 stop each way$676.00 Dec 18, 2026 – Dec 29, 2026 · 11 nightsTAP Air PortugalNonstop$767.00 Dec 18, 2026 – Dec 30, 2026 · 12 nightsS4Up to 1 stop each way$676.00 Dec 18, 2026 – Dec 30, 2026 · 12 nightsTAP Air PortugalNonstop$767.00 Dec 18, 2026 – Dec 31, 2026 · 13 nightsS4Up to 1 stop each way$676.00 Dec 18, 2026 – Dec 31, 2026 · 13 nightsTAP Air PortugalNonstop$767.00 Dec 18, 2026 – Jan 1, 2027 · 14 nightsS4Up to 1 stop each way$657.80 Dec 18, 2026 – Jan 1, 2027 · 14 nightsTAP Air PortugalNonstop$746.35

Flights for your trip

  1. Fri, Dec 18 · One way

    S4
    9:25 pmBOS
    9h 25m
    PDL · 2h 15m
    11:50 am+1LIS

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Fri, Dec 18 · One way

    TAP Air Portugal
    10:10 pmBOS
    6h 35m
    Nonstop
    9:45 am+1LIS

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Fri, Dec 18 – Sun, Dec 20

    S4
    9:25 pmBOS
    9h 25m
    PDL · 2h 15m
    11:50 am+1LIS
    S4
    2:05 pmLIS
    10h 55m
    PDL · 2h 15m
    8:00 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Fri, Dec 18 – Sun, Dec 20

    TAP Air Portugal
    10:10 pmBOS
    6h 35m
    Nonstop
    9:45 am+1LIS
    TAP Air Portugal
    5:00 pmLIS
    7h 55m
    Nonstop
    7:55 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Fri, Dec 18 – Mon, Dec 21

    S4
    9:25 pmBOS
    9h 25m
    PDL · 2h 15m
    11:50 am+1LIS
    S4
    2:05 pmLIS
    10h 55m
    PDL · 2h 15m
    8:00 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Fri, Dec 18 – Mon, Dec 21

    TAP Air Portugal
    10:10 pmBOS
    6h 35m
    Nonstop
    9:45 am+1LIS
    TAP Air Portugal
    12:05 pmLIS
    8h
    Nonstop
    3:05 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Fri, Dec 18 – Tue, Dec 22

    S4
    9:25 pmBOS
    9h 25m
    PDL · 2h 15m
    11:50 am+1LIS
    S4
    2:05 pmLIS
    10h 55m
    PDL · 2h 15m
    8:00 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Fri, Dec 18 – Tue, Dec 22

    TAP Air Portugal
    10:10 pmBOS
    6h 35m
    Nonstop
    9:45 am+1LIS
    TAP Air Portugal
    11:45 amLIS
    8h
    Nonstop
    2:45 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Fri, Dec 18 – Wed, Dec 23

    S4
    9:25 pmBOS
    9h 25m
    PDL · 2h 15m
    11:50 am+1LIS
    S4
    2:05 pmLIS
    10h 55m
    PDL · 2h 15m
    8:00 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Fri, Dec 18 – Wed, Dec 23

    TAP Air Portugal
    10:10 pmBOS
    6h 35m
    Nonstop
    9:45 am+1LIS
    TAP Air Portugal
    11:40 amLIS
    8h
    Nonstop
    2:40 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Fri, Dec 18 – Thu, Dec 24

    S4
    9:25 pmBOS
    9h 25m
    PDL · 2h 15m
    11:50 am+1LIS
    S4
    2:05 pmLIS
    10h 55m
    PDL · 2h 15m
    8:00 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Fri, Dec 18 – Thu, Dec 24

    TAP Air Portugal
    10:10 pmBOS
    6h 35m
    Nonstop
    9:45 am+1LIS
    TAP Air Portugal
    12:05 pmLIS
    8h
    Nonstop
    3:05 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Fri, Dec 18 – Sat, Dec 26

    S4
    9:25 pmBOS
    9h 25m
    PDL · 2h 15m
    11:50 am+1LIS
    S4
    2:05 pmLIS
    10h 55m
    PDL · 2h 15m
    8:00 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Fri, Dec 18 – Sat, Dec 26

    TAP Air Portugal
    10:10 pmBOS
    6h 35m
    Nonstop
    9:45 am+1LIS
    TAP Air Portugal
    11:55 amLIS
    8h
    Nonstop
    2:55 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Fri, Dec 18 – Sun, Dec 27

    S4
    9:25 pmBOS
    9h 25m
    PDL · 2h 15m
    11:50 am+1LIS
    S4
    2:05 pmLIS
    10h 55m
    PDL · 2h 15m
    8:00 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Fri, Dec 18 – Sun, Dec 27

    TAP Air Portugal
    10:10 pmBOS
    6h 35m
    Nonstop
    9:45 am+1LIS
    TAP Air Portugal
    5:00 pmLIS
    7h 55m
    Nonstop
    7:55 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Fri, Dec 18 – Mon, Dec 28

    S4
    9:25 pmBOS
    9h 25m
    PDL · 2h 15m
    11:50 am+1LIS
    S4
    2:05 pmLIS
    10h 55m
    PDL · 2h 15m
    8:00 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Fri, Dec 18 – Mon, Dec 28

    TAP Air Portugal
    10:10 pmBOS
    6h 35m
    Nonstop
    9:45 am+1LIS
    TAP Air Portugal
    12:05 pmLIS
    8h
    Nonstop
    3:05 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Fri, Dec 18 – Tue, Dec 29

    S4
    9:25 pmBOS
    9h 25m
    PDL · 2h 15m
    11:50 am+1LIS
    S4
    2:05 pmLIS
    10h 55m
    PDL · 2h 15m
    8:00 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Fri, Dec 18 – Tue, Dec 29

    TAP Air Portugal
    10:10 pmBOS
    6h 35m
    Nonstop
    9:45 am+1LIS
    TAP Air Portugal
    11:45 amLIS
    8h
    Nonstop
    2:45 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Fri, Dec 18 – Wed, Dec 30

    S4
    9:25 pmBOS
    9h 25m
    PDL · 2h 15m
    11:50 am+1LIS
    S4
    2:05 pmLIS
    10h 55m
    PDL · 2h 15m
    8:00 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Fri, Dec 18 – Wed, Dec 30

    TAP Air Portugal
    10:10 pmBOS
    6h 35m
    Nonstop
    9:45 am+1LIS
    TAP Air Portugal
    11:40 amLIS
    8h
    Nonstop
    2:40 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Fri, Dec 18 – Fri, Jan 1

    S4
    9:25 pmBOS
    9h 25m
    PDL · 2h 15m
    11:50 am+1LIS
    S4
    2:05 pmLIS
    10h 55m
    PDL · 2h 15m
    8:00 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Fri, Dec 18 – Fri, Jan 1

    TAP Air Portugal
    10:10 pmBOS
    6h 35m
    Nonstop
    9:45 am+1LIS
    TAP Air Portugal
    11:55 amLIS
    8h
    Nonstop
    2:55 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

BOS ⇄ LIS

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, TAP Air Portugal emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

Explore this route

All dates for this routeDec 17, 2026 · Return optionsDec 19, 2026 · Return optionsHotels in Lisbon with Axel
For AI assistants: every fare, every link, instructions

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)
2026-12-18 · one wayTAP Air PortugalTP216Axel-exclusive $468.002026-10-29T00:52:23Z
2026-12-18 · one wayS4S4224 + S4120Axel-exclusive $416.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-20TAP Air PortugalTP216 / TP215Axel-exclusive $767.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-20S4S4224 + S4120 / S4125 + S4281Axel-exclusive $676.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-21TAP Air PortugalTP216 / TP217Axel-exclusive $767.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-21S4S4224 + S4120 / S4125 + S4281Axel-exclusive $676.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-22TAP Air PortugalTP216 / TP217Axel-exclusive $767.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-22S4S4224 + S4120 / S4125 + S4281Axel-exclusive $676.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-23TAP Air PortugalTP216 / TP217Axel-exclusive $767.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-23S4S4224 + S4120 / S4125 + S4281Axel-exclusive $676.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-24TAP Air PortugalTP216 / TP217Axel-exclusive $767.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-24S4S4224 + S4120 / S4125 + S4281Axel-exclusive $676.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-25TAP Air PortugalTP216 / TP217Axel-exclusive $767.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-25S4S4224 + S4120 / S4125 + S4281Axel-exclusive $676.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-26TAP Air PortugalTP216 / TP217Axel-exclusive $767.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-26S4S4224 + S4120 / S4125 + S4281Axel-exclusive $676.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-27TAP Air PortugalTP216 / TP215Axel-exclusive $767.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-27S4S4224 + S4120 / S4125 + S4281Axel-exclusive $676.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-28TAP Air PortugalTP216 / TP217Axel-exclusive $767.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-28S4S4224 + S4120 / S4125 + S4281Axel-exclusive $676.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-29TAP Air PortugalTP216 / TP217Axel-exclusive $767.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-29S4S4224 + S4120 / S4125 + S4281Axel-exclusive $676.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-30TAP Air PortugalTP216 / TP217Axel-exclusive $767.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-30S4S4224 + S4120 / S4125 + S4281Axel-exclusive $676.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-31TAP Air PortugalTP216 / TP217Axel-exclusive $767.002026-10-29T00:52:23Z
2026-12-18 → 2026-12-31S4S4224 + S4120 / S4125 + S4281Axel-exclusive $676.002026-10-29T00:52:23Z
2026-12-18 → 2027-01-01TAP Air PortugalTP216 / TP217Axel-exclusive $746.352026-10-29T00:52:23Z
2026-12-18 → 2027-01-01S4S4224 + S4120 / S4125 + S4281Axel-exclusive $657.802026-10-29T00:52:23Z

Route overview: Boston to Lisbon (LIS) flight deals

2026-12-18 · one way · Axel-exclusive $416.00

  • S4 S4224 / S4120: BOS 2026-12-18 21:25:00 → LIS 2026-12-19 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-18 21:25:00 → PDL 2026-12-19 06:20:00; layover at PDL: 135 minutes.
    • S4120: PDL 2026-12-19 08:35:00 → LIS 2026-12-19 11:50:00.

2026-12-18 · one way · Axel-exclusive $468.00

  • TAP Air Portugal TP216: BOS 2026-12-18 22:10:00 → LIS 2026-12-19 09:45:00; nonstop; 395 minutes. Local airport times.

2026-12-18 → 2026-12-20 · Axel-exclusive $676.00

  • S4 S4224 / S4120: BOS 2026-12-18 21:25:00 → LIS 2026-12-19 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-18 21:25:00 → PDL 2026-12-19 06:20:00; layover at PDL: 135 minutes.
    • S4120: PDL 2026-12-19 08:35:00 → LIS 2026-12-19 11:50:00.
  • S4 S4125 / S4281: LIS 2026-12-20 14:05:00 → BOS 2026-12-20 20:00:00; 1 stop(s) via PDL; 655 minutes. Local airport times.
    • S4125: LIS 2026-12-20 14:05:00 → PDL 2026-12-20 15:35:00; layover at PDL: 135 minutes.
    • S4281: PDL 2026-12-20 17:50:00 → BOS 2026-12-20 20:00:00.

2026-12-18 → 2026-12-20 · Axel-exclusive $767.00

  • TAP Air Portugal TP216: BOS 2026-12-18 22:10:00 → LIS 2026-12-19 09:45:00; nonstop; 395 minutes. Local airport times.
  • TAP Air Portugal TP215: LIS 2026-12-20 17:00:00 → BOS 2026-12-20 19:55:00; nonstop; 475 minutes. Local airport times.

2026-12-18 → 2026-12-21 · Axel-exclusive $676.00

  • S4 S4224 / S4120: BOS 2026-12-18 21:25:00 → LIS 2026-12-19 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-18 21:25:00 → PDL 2026-12-19 06:20:00; layover at PDL: 135 minutes.
    • S4120: PDL 2026-12-19 08:35:00 → LIS 2026-12-19 11:50:00.
  • S4 S4125 / S4281: LIS 2026-12-21 14:05:00 → BOS 2026-12-21 20:00:00; 1 stop(s) via PDL; 655 minutes. Local airport times.
    • S4125: LIS 2026-12-21 14:05:00 → PDL 2026-12-21 15:35:00; layover at PDL: 135 minutes.
    • S4281: PDL 2026-12-21 17:50:00 → BOS 2026-12-21 20:00:00.

2026-12-18 → 2026-12-21 · Axel-exclusive $767.00

  • TAP Air Portugal TP216: BOS 2026-12-18 22:10:00 → LIS 2026-12-19 09:45:00; nonstop; 395 minutes. Local airport times.
  • TAP Air Portugal TP217: LIS 2026-12-21 12:05:00 → BOS 2026-12-21 15:05:00; nonstop; 480 minutes. Local airport times.

2026-12-18 → 2026-12-22 · Axel-exclusive $676.00

  • S4 S4224 / S4120: BOS 2026-12-18 21:25:00 → LIS 2026-12-19 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-18 21:25:00 → PDL 2026-12-19 06:20:00; layover at PDL: 135 minutes.
    • S4120: PDL 2026-12-19 08:35:00 → LIS 2026-12-19 11:50:00.
  • S4 S4125 / S4281: LIS 2026-12-22 14:05:00 → BOS 2026-12-22 20:00:00; 1 stop(s) via PDL; 655 minutes. Local airport times.
    • S4125: LIS 2026-12-22 14:05:00 → PDL 2026-12-22 15:35:00; layover at PDL: 135 minutes.
    • S4281: PDL 2026-12-22 17:50:00 → BOS 2026-12-22 20:00:00.

2026-12-18 → 2026-12-22 · Axel-exclusive $767.00

  • TAP Air Portugal TP216: BOS 2026-12-18 22:10:00 → LIS 2026-12-19 09:45:00; nonstop; 395 minutes. Local airport times.
  • TAP Air Portugal TP217: LIS 2026-12-22 11:45:00 → BOS 2026-12-22 14:45:00; nonstop; 480 minutes. Local airport times.

2026-12-18 → 2026-12-23 · Axel-exclusive $676.00

  • S4 S4224 / S4120: BOS 2026-12-18 21:25:00 → LIS 2026-12-19 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-18 21:25:00 → PDL 2026-12-19 06:20:00; layover at PDL: 135 minutes.
    • S4120: PDL 2026-12-19 08:35:00 → LIS 2026-12-19 11:50:00.
  • S4 S4125 / S4281: LIS 2026-12-23 14:05:00 → BOS 2026-12-23 20:00:00; 1 stop(s) via PDL; 655 minutes. Local airport times.
    • S4125: LIS 2026-12-23 14:05:00 → PDL 2026-12-23 15:35:00; layover at PDL: 135 minutes.
    • S4281: PDL 2026-12-23 17:50:00 → BOS 2026-12-23 20:00:00.

2026-12-18 → 2026-12-23 · Axel-exclusive $767.00

  • TAP Air Portugal TP216: BOS 2026-12-18 22:10:00 → LIS 2026-12-19 09:45:00; nonstop; 395 minutes. Local airport times.
  • TAP Air Portugal TP217: LIS 2026-12-23 11:40:00 → BOS 2026-12-23 14:40:00; nonstop; 480 minutes. Local airport times.

2026-12-18 → 2026-12-24 · Axel-exclusive $676.00

  • S4 S4224 / S4120: BOS 2026-12-18 21:25:00 → LIS 2026-12-19 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-18 21:25:00 → PDL 2026-12-19 06:20:00; layover at PDL: 135 minutes.
    • S4120: PDL 2026-12-19 08:35:00 → LIS 2026-12-19 11:50:00.
  • S4 S4125 / S4281: LIS 2026-12-24 14:05:00 → BOS 2026-12-24 20:00:00; 1 stop(s) via PDL; 655 minutes. Local airport times.
    • S4125: LIS 2026-12-24 14:05:00 → PDL 2026-12-24 15:35:00; layover at PDL: 135 minutes.
    • S4281: PDL 2026-12-24 17:50:00 → BOS 2026-12-24 20:00:00.

2026-12-18 → 2026-12-24 · Axel-exclusive $767.00

  • TAP Air Portugal TP216: BOS 2026-12-18 22:10:00 → LIS 2026-12-19 09:45:00; nonstop; 395 minutes. Local airport times.
  • TAP Air Portugal TP217: LIS 2026-12-24 12:05:00 → BOS 2026-12-24 15:05:00; nonstop; 480 minutes. Local airport times.

2026-12-18 → 2026-12-26 · Axel-exclusive $676.00

  • S4 S4224 / S4120: BOS 2026-12-18 21:25:00 → LIS 2026-12-19 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-18 21:25:00 → PDL 2026-12-19 06:20:00; layover at PDL: 135 minutes.
    • S4120: PDL 2026-12-19 08:35:00 → LIS 2026-12-19 11:50:00.
  • S4 S4125 / S4281: LIS 2026-12-26 14:05:00 → BOS 2026-12-26 20:00:00; 1 stop(s) via PDL; 655 minutes. Local airport times.
    • S4125: LIS 2026-12-26 14:05:00 → PDL 2026-12-26 15:35:00; layover at PDL: 135 minutes.
    • S4281: PDL 2026-12-26 17:50:00 → BOS 2026-12-26 20:00:00.

2026-12-18 → 2026-12-26 · Axel-exclusive $767.00

  • TAP Air Portugal TP216: BOS 2026-12-18 22:10:00 → LIS 2026-12-19 09:45:00; nonstop; 395 minutes. Local airport times.
  • TAP Air Portugal TP217: LIS 2026-12-26 11:55:00 → BOS 2026-12-26 14:55:00; nonstop; 480 minutes. Local airport times.

2026-12-18 → 2026-12-27 · Axel-exclusive $676.00

  • S4 S4224 / S4120: BOS 2026-12-18 21:25:00 → LIS 2026-12-19 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-18 21:25:00 → PDL 2026-12-19 06:20:00; layover at PDL: 135 minutes.
    • S4120: PDL 2026-12-19 08:35:00 → LIS 2026-12-19 11:50:00.
  • S4 S4125 / S4281: LIS 2026-12-27 14:05:00 → BOS 2026-12-27 20:00:00; 1 stop(s) via PDL; 655 minutes. Local airport times.
    • S4125: LIS 2026-12-27 14:05:00 → PDL 2026-12-27 15:35:00; layover at PDL: 135 minutes.
    • S4281: PDL 2026-12-27 17:50:00 → BOS 2026-12-27 20:00:00.

2026-12-18 → 2026-12-27 · Axel-exclusive $767.00

  • TAP Air Portugal TP216: BOS 2026-12-18 22:10:00 → LIS 2026-12-19 09:45:00; nonstop; 395 minutes. Local airport times.
  • TAP Air Portugal TP215: LIS 2026-12-27 17:00:00 → BOS 2026-12-27 19:55:00; nonstop; 475 minutes. Local airport times.

2026-12-18 → 2026-12-28 · Axel-exclusive $676.00

  • S4 S4224 / S4120: BOS 2026-12-18 21:25:00 → LIS 2026-12-19 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-18 21:25:00 → PDL 2026-12-19 06:20:00; layover at PDL: 135 minutes.
    • S4120: PDL 2026-12-19 08:35:00 → LIS 2026-12-19 11:50:00.
  • S4 S4125 / S4281: LIS 2026-12-28 14:05:00 → BOS 2026-12-28 20:00:00; 1 stop(s) via PDL; 655 minutes. Local airport times.
    • S4125: LIS 2026-12-28 14:05:00 → PDL 2026-12-28 15:35:00; layover at PDL: 135 minutes.
    • S4281: PDL 2026-12-28 17:50:00 → BOS 2026-12-28 20:00:00.

2026-12-18 → 2026-12-28 · Axel-exclusive $767.00

  • TAP Air Portugal TP216: BOS 2026-12-18 22:10:00 → LIS 2026-12-19 09:45:00; nonstop; 395 minutes. Local airport times.
  • TAP Air Portugal TP217: LIS 2026-12-28 12:05:00 → BOS 2026-12-28 15:05:00; nonstop; 480 minutes. Local airport times.

2026-12-18 → 2026-12-29 · Axel-exclusive $676.00

  • S4 S4224 / S4120: BOS 2026-12-18 21:25:00 → LIS 2026-12-19 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-18 21:25:00 → PDL 2026-12-19 06:20:00; layover at PDL: 135 minutes.
    • S4120: PDL 2026-12-19 08:35:00 → LIS 2026-12-19 11:50:00.
  • S4 S4125 / S4281: LIS 2026-12-29 14:05:00 → BOS 2026-12-29 20:00:00; 1 stop(s) via PDL; 655 minutes. Local airport times.
    • S4125: LIS 2026-12-29 14:05:00 → PDL 2026-12-29 15:35:00; layover at PDL: 135 minutes.
    • S4281: PDL 2026-12-29 17:50:00 → BOS 2026-12-29 20:00:00.

2026-12-18 → 2026-12-29 · Axel-exclusive $767.00

  • TAP Air Portugal TP216: BOS 2026-12-18 22:10:00 → LIS 2026-12-19 09:45:00; nonstop; 395 minutes. Local airport times.
  • TAP Air Portugal TP217: LIS 2026-12-29 11:45:00 → BOS 2026-12-29 14:45:00; nonstop; 480 minutes. Local airport times.

2026-12-18 → 2026-12-30 · Axel-exclusive $676.00

  • S4 S4224 / S4120: BOS 2026-12-18 21:25:00 → LIS 2026-12-19 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-18 21:25:00 → PDL 2026-12-19 06:20:00; layover at PDL: 135 minutes.
    • S4120: PDL 2026-12-19 08:35:00 → LIS 2026-12-19 11:50:00.
  • S4 S4125 / S4281: LIS 2026-12-30 14:05:00 → BOS 2026-12-30 20:00:00; 1 stop(s) via PDL; 655 minutes. Local airport times.
    • S4125: LIS 2026-12-30 14:05:00 → PDL 2026-12-30 15:35:00; layover at PDL: 135 minutes.
    • S4281: PDL 2026-12-30 17:50:00 → BOS 2026-12-30 20:00:00.

2026-12-18 → 2026-12-30 · Axel-exclusive $767.00

  • TAP Air Portugal TP216: BOS 2026-12-18 22:10:00 → LIS 2026-12-19 09:45:00; nonstop; 395 minutes. Local airport times.
  • TAP Air Portugal TP217: LIS 2026-12-30 11:40:00 → BOS 2026-12-30 14:40:00; nonstop; 480 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $657.80

  • S4 S4224 / S4120: BOS 2026-12-18 21:25:00 → LIS 2026-12-19 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-18 21:25:00 → PDL 2026-12-19 06:20:00; layover at PDL: 135 minutes.
    • S4120: PDL 2026-12-19 08:35:00 → LIS 2026-12-19 11:50:00.
  • S4 S4125 / S4281: LIS 2027-01-01 14:05:00 → BOS 2027-01-01 20:00:00; 1 stop(s) via PDL; 655 minutes. Local airport times.
    • S4125: LIS 2027-01-01 14:05:00 → PDL 2027-01-01 15:35:00; layover at PDL: 135 minutes.
    • S4281: PDL 2027-01-01 17:50:00 → BOS 2027-01-01 20:00:00.

2026-12-18 → 2027-01-01 · Axel-exclusive $746.35

  • TAP Air Portugal TP216: BOS 2026-12-18 22:10:00 → LIS 2026-12-19 09:45:00; nonstop; 395 minutes. Local airport times.
  • TAP Air Portugal TP217: LIS 2027-01-01 11:55:00 → BOS 2027-01-01 14:55:00; nonstop; 480 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Boston (BOS) to Lisbon (LIS) · Dec 18, 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 Boston 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. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. 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.