● Deals from
● Sweeping every destination…
£343usually £440−22%16 Sept 2026 · 1-stop · score 62/100 · Solid
Live check · This route is not on today’s below-usual board, so we re-scanned it just now: the current cheapest upcoming fare sits about 22% below its usual level.
Why so cheap?
Researching this route’s pricing right now — checking season, sales, capacity and route news…
Fares by departure date
Today’s fare is cheaper than 89% of the 9 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 (2026-09-02) is £343 one-way fare, departing 16 Sept 2026, 1-stop. Fares move constantly — the link below re-checks live availability on Aviasales.
- Is £343 a good price for a London to Seattle flight (LHR→SEA)?
- Yes by the data: this route usually costs about £440 (midpoint of Google Flights' typical price range), so £343 is 22% below usual and cheaper than 89% of the 9 fares tracked for this route. FareFloor's deal score for it is 62/100 as of 2026-09-02.
- When is the cheapest time to fly from London to Seattle in the coming months?
- Across the departure windows our 2026-09-02 scan compared, the lowest-priced departure found is 16 Sept 2026 at £343 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.
- Why is it so cheap to fly from London to Seattle right now?
- Flights from London to Seattle departing 16 September 2026 are currently about 22% cheaper than usual — £343 against a usual level of roughly £440 — because Virgin Atlantic is running a September/October sale on London‑Seattle flights, and September is a low‑demand shoulder month. Worth knowing: Seattle sees frequent rain in September, which may affect outdoor plans. (Researched 2 September 2026 from current web sources.)
- Is there a direct flight from London to Seattle at this price?
- The cheapest fare found today is 1-stop. A direct option, where one exists, may cost more — check the live fare link for alternatives.