Seattle → Lisbon
Nov 20, 2026 · one way
SEA → LIS1 adulteconomyOne way
6 flight options · 5 airlines
One-stop flights
Make this trip yours
Already have an account? Log in
Why book with Axel
- A real airline bookingThe booking is in the airline’s own system under your name. After you book, FI 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
More dates
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.
| Exact travel dates | Airline | Flights | Total price | Price issued (UTC) |
|---|---|---|---|---|
| 2026-11-20 · one way | FI | FI680 + FI954 | $465.50 | 2026-10-29T01:15:30Z |
| 2026-11-20 · one way | Air Canada | AC540 + TP258 | $617.50 | 2026-10-29T01:15:30Z |
| 2026-11-20 · one way | United Airlines | UA1348 + TP232 | $646.00 | 2026-10-29T01:15:30Z |
| 2026-11-20 · one way | Air France | AF77 + AF1624 | $674.50 | 2026-10-29T01:15:30Z |
| 2026-11-20 · one way | Delta Air Lines | DL438 + DL124 | $684.00 | 2026-10-29T01:15:30Z |
| 2026-11-20 · one way | United Airlines | UA1900 + TP202 | $646.00 | 2026-10-29T01:15:30Z |
2026-11-20 · one way · $465.50
- FI FI680 / FI954: SEA 2026-11-20 14:35:00 → LIS 2026-11-21 12:50:00; 1 stop(s) via KEF; 855 minutes. Local airport times.
- FI680: SEA 2026-11-20 14:35:00 → KEF 2026-11-21 06:15:00; layover at KEF: 135 minutes.
- FI954: KEF 2026-11-21 08:30:00 → LIS 2026-11-21 12:50:00.
2026-11-20 · one way · $617.50
- Air Canada AC540 / TP258: SEA 2026-11-20 07:45:00 → LIS 2026-11-21 05:45:00; 1 stop(s) via YYZ; 840 minutes. Local airport times.
- AC540: SEA 2026-11-20 07:45:00 → YYZ 2026-11-20 15:25:00; layover at YYZ: 120 minutes.
- TP258: YYZ 2026-11-20 17:25:00 → LIS 2026-11-21 05:45:00.
2026-11-20 · one way · $646.00
- United Airlines UA1348 / TP232: SEA 2026-11-20 08:09:00 → LIS 2026-11-21 05:35:00; 1 stop(s) via IAD; 806 minutes. Local airport times.
- UA1348: SEA 2026-11-20 08:09:00 → IAD 2026-11-20 16:08:00; layover at IAD: 77 minutes.
- TP232: IAD 2026-11-20 17:25:00 → LIS 2026-11-21 05:35:00.
2026-11-20 · one way · $674.50
- Air France AF77 / AF1624: SEA 2026-11-20 16:05:00 → LIS 2026-11-21 15:10:00; 1 stop(s) via CDG; 905 minutes. Local airport times.
- AF77: SEA 2026-11-20 16:05:00 → CDG 2026-11-21 10:50:00; layover at CDG: 155 minutes.
- AF1624: CDG 2026-11-21 13:25:00 → LIS 2026-11-21 15:10:00.
2026-11-20 · one way · $684.00
- Delta Air Lines DL438 / DL124: SEA 2026-11-20 11:45:00 → LIS 2026-11-21 08:55:00; 1 stop(s) via BOS; 790 minutes. Local airport times.
- DL438: SEA 2026-11-20 11:45:00 → BOS 2026-11-20 19:59:00; layover at BOS: 91 minutes.
- DL124: BOS 2026-11-20 21:30:00 → LIS 2026-11-21 08:55:00.
2026-11-20 · one way · $646.00
- United Airlines UA1900 / TP202: SEA 2026-11-20 06:30:00 → LIS 2026-11-21 05:25:00; 1 stop(s) via EWR; 895 minutes. Local airport times.
- UA1900: SEA 2026-11-20 06:30:00 → EWR 2026-11-20 14:42:00; layover at EWR: 178 minutes.
- TP202: EWR 2026-11-20 17:40:00 → LIS 2026-11-21 05:25:00.