Premier Inn London County Hall
★★★ 3-star hotel
Next to the London Eye, a short walk from Waterloo station
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Cheapest month to fly
One way, the cheapest fare found for each month. Fares change all the time; the search shows today’s prices.
| Month | From | Airline | Stops | Found |
|---|---|---|---|---|
| November 2026 | $379 | Alaska Airlines | 1 stop | 13 Nov 2026 |
| December 2026 | $230 | Icelandair | 1 stop | 11 Nov 2026 |
| January 2027 | $468 | WestJet | 2 stops | 7 Nov 2026 |
| March 2027 | $272 | Icelandair | 1 stop | 9 Nov 2026 |
Cheapest days in December 2026
| Date | From | Airline | Stops | Found |
|---|---|---|---|---|
| 6 Dec 2026 | $230 | Icelandair | 1 stop | 11 Nov 2026 |
| 7 Dec 2026 | $230 | Icelandair | 1 stop | 11 Nov 2026 |
| 8 Dec 2026 | $230 | Icelandair | 1 stop | 11 Nov 2026 |
| 16 Dec 2026 | $624 | Icelandair | 3 stops | 11 Nov 2026 |
Airlines flying non-stop
Alaska Airlines From $680 one way · found 11 Nov 2026
British Airways From $680 one way · found 11 Nov 2026
Non-stop flights take about 9 h 25 min.
Seat maps for this route
Select Hotels in London
The Resident Covent Garden
★★★★ 4-star hotel
A few minutes' walk from Covent Garden and Charing Cross station
Novotel London Waterloo
★★★★ 4-star hotel
9 minutes on foot from Lambeth North Underground station
Lounges at Seattle-Tacoma International →
Lounges at London Heathrow Airport →
How many Avios or miles does this flight earn, and what does it cost in points?
Questions about this route
When is it cheapest to fly from Seattle to London?
In our recent data December 2026 is cheapest, from $230 one way. Prices move every day, so check the search for your own dates.
Which airlines fly non-stop from Seattle to London?
Recent non-stop fares were found with Alaska Airlines and British Airways.
How long is the flight from Seattle to London?
About 9 h 25 min non-stop.
Fares are the cheapest found recently by travellers, not live quotes, and can change.