LHR → SFO · direct available
Cheap flights from London to San Francisco
We track fares from London to San Francisco, United States every day. Across 75 prices we've logged, the cheapest was €434 return and a typical fare runs around €525. The cheapest month to fly is usually Nov 2026.
Cheapest seen
€434
Typical price
€525
Cheapest month
Nov 2026
Non-stop
Available
No live deal on this exact route right now — but the typical fare is around €525. Search your dates below, or browse all deals to United States.
Cheapest months to fly
The typical cheapest fare by month, from our tracking — a guide only. Check the live price on Aviasales before booking.
| Month | Typical from | Check price |
|---|---|---|
| Sept 2026 | €481 | Check on Aviasales → |
| Nov 2026 | €434 | Check on Aviasales → |
Each link opens the live Aviasales search for that month, where you can pick the exact cheapest dates.
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London to San Francisco: the basics
- Route
- London (LHR) → San Francisco (SFO)
- Distance
- 8,616 km
- Non-stop
- Yes
- Airlines seen
- American Airlines, Air Canada, AS, British Airways, KLM, Swiss
Planning the trip? United States: what to see and when to go covers where to go and when.