SFO - LHR
Find cheap flights from San Francisco to London Heathrow Airport
Good to know
Best time to beat the crowds
expected price decrease
Most popular time to fly
expected price increase
(avg. price over the last 2 weeks)
or less (round trip)
When to book flights from San Francisco to London Heathrow
Top tips for finding a cheap flight
- Looking for a cheap flight? 25% of our users found flights on this route for $472 or less.
- The cheapest flight from San Francisco to London was found 65 days before departure, on average.
- Book at least 3 weeks before departure in order to get a below-average price.
- High season is considered to be May, June and July. The cheapest month to fly is October.
- Morning departure is around 2% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days
FAQs for booking San Francisco to London Heathrow Airport flights
Book cheap flights from San Francisco to London Heathrow Airport (round-trip)
Book cheap flights from San Francisco to London Heathrow Airport (one-way)
Cons: the flight was fine, but not being able to checkin online is VERY inconvenient, and I spent TOO much time trying ot reach Aer Lingus, Justfly, BritishAirways to get checked in, with no success. The reference number needed to check in for the operating airline should be provided to the passenger.
Pros: The meal and drink service was quite good. The stewards/stewardesses were very attentive and kind.
Cons: There is not enough leg room. There is even less room if the person in front of one's seat has the seat reclined. The seats barely recline at all, so sleep is impossible. Sleep would be possible if there were enough room to rest one's head on the tray in front of the seat. This is impossible if the person in front of one's seat has reclined his or her seat. Thus, sleep is totally impossible on this aircraft. The sinks in the bathrooms also need to be deeper and need to drain more quickly.
San Francisco - London Heathrow Airport Flights
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