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🇬🇧 London to Seattle 🇺🇸 LON · USA

The usual fare is about £504. The cheapest fare we logged was £336 roundtrip. 6 deals in the last year, a median 26% under the usual price. Price the pair now:

Live fares from the airlines, one per carrier · a verdict against the usual price · set an alert on any result · or
£504usual fare on this pair
£336cheapest we logged · 2026-11-14
6deals in a year · 2 nonstop
-26%median saving when we posted

When it was cheapest

£336November 2026

Live now on this pair

🇺🇸 London → Seattle£336 · -36%

Every deal we posted

£336 roundtripposted 2026-11-14 · travel Jan – Feb 2027 · live now-36%usual £528£345 roundtripposted 2026-11-12 · live now-28%usual £480£420 roundtripposted 2026-11-09 · nonstop · travel Nov 2026 – Mar 2027 · expired-20%usual £528£448 roundtripposted 2026-11-08 · nonstop · expired-7%usual £480£346 roundtripposted 2026-11-02 · travel Nov 2026 – Apr 2027 · expired-34%usual £528£367 roundtripposted 2026-11-01 · expired-24%usual £480

Questions

What is a cheap flight from London to Seattle?

The usual fare is about £504; anything well under that is a deal. The best fare we logged in the last year was £336 roundtrip, posted 2026-11-14. Across 6 deals the median saving was 26%.

When is it cheapest to fly London to Seattle?

The deals we posted were cheapest in November 2026 (£336). Fares move; the search above prices any date now, and an alert tells you when one drops.

Are there nonstop deals from London to Seattle?

2 of the 6 deals we posted were nonstop.

How do I get told about the next one?

Search the pair above and press the alert button under the verdict, or join the free Telegram channel: every verified deal lands there the moment it passes the price check.

More

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