Cheapest return flights from San Francisco to London in April from $472

AirHint found the following cheapest return flights from San Francisco (SFO) to London (LHR) in April 2026 (see full year).

Return flights

24 Apr - 26 Apr Scandinavian Airlines
23 Apr - 27 Apr Scandinavian Airlines
30 Apr - 23 May Scandinavian Airlines
25 Apr - 09 May Scandinavian Airlines
23 Apr - 08 May Scandinavian Airlines
24 Apr - 16 May Scandinavian Airlines
01 Apr - 08 Apr British Airways direct
21 Apr - 28 Apr British Airways direct
21 Apr - 12 May British Airways direct
13 Apr - 17 Apr Scandinavian Airlines
26 Apr - 10 May Scandinavian Airlines
15 Apr - 09 May Air Canada
08 Apr - 02 May Air Canada
05 Apr - 25 Apr Air Canada
10 Apr - 30 Apr Air Canada
26 Apr - 10 May British Airways direct
10 Apr - 30 Apr British Airways direct
05 Apr - 25 Apr British Airways direct
23 Apr - 08 May British Airways direct
10 Apr - 18 Apr Scandinavian Airlines

Also check the deals for one-way flights from San Francisco to London in April.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.