Cheap Flights from San Francisco to London
San Francisco to London flight insights
Average flight time
10h 15m
SFO → LHR
Cheapest month
February
Based on cached fare history
Cheapest cached price
$396
Checking live fares…
Live fare checked: Aug 8, 2026
Planning a trip from San Francisco to London? According to live flight data on Eazair, the average flight time is 10h 15m. Live fares on Eazair currently start at $396, but historically, booking your trip in February yields the best travel deals.
Route Quick Facts
| Origin | San Francisco (SFO) |
|---|---|
| Destination | London (LHR) |
| Average Flight Time | 10h 15m |
| Cheapest Month to Fly | February |
| Current Lowest Fare | $396 USD |
Flight deals from San Francisco to London
Compare flight deals from San Francisco to London. We search hundreds of airlines and travel agencies to find you the best price. Fares on this route are refreshed live from our partner network, so the price you see is the price you follow through to the provider — EAZAIR never adds a fee.
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