London → 🇺🇸 Seattle LHR→SEA

Why so cheap?

Fares by departure date

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Today’s fare is cheaper than 83% of the 6 fares tracked for this route.

Questions people ask about this route

What is the lowest price for a flight from London to Seattle right now?

The lowest price our scan found today (2026-10-17) is £499 one-way fare, departing 22 Oct 2026, direct. Fares move constantly — the link below re-checks live availability on Aviasales.

Is £499 a good price for a London to Seattle flight (LHR→SEA)?

Yes by the data: this route usually costs about £1,019 (midpoint of Google Flights' typical price range), so £499 is 51% below usual and cheaper than 83% of the 6 fares tracked for this route. FareFloor's deal score for it is 88/100 as of 2026-10-17.

When is the cheapest time to fly from London to Seattle in the coming months?

Across the departure windows our 2026-10-17 scan compared, the lowest-priced departure found is 22 Oct 2026 at £499 one-way fare. Method: we sweep this origin's destinations several times a day via Google Flights data and keep the cheapest round-trip window per route — a cheaper window can appear any day, so treat this as today's answer, not a permanent one.

Is there a direct flight from London to Seattle at this price?

Yes — the £499 fare found today is a direct flight.

More unusually cheap flights from London right now

• London → 🇫🇷 Paris£24 · −65%
• London → 🇮🇹 Milan£43 · −34%
• London → 🇮🇪 Dublin£46 · −16%
• London → 🇪🇸 Barcelona£27 · −24%
• London → 🇲🇾 Kuala Lumpur£262 · −21%
• London → 🇨🇳 Guangzhou£270 · −16%

See the full London deal board →