Cheapest return flights from San Francisco to London in April from 566€

Best time to book flights for San Francisco (SFO) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from San Francisco (SFO) to London (LHR) in April 2025 (see full year).

Return flights

19 Apr - 27 Apr Aer Lingus
01 Apr - 24 Apr Iberia direct
16 Apr - 07 May Iberia
15 Apr - 15 May TAP
08 Apr - 19 Apr Aer Lingus
06 Apr - 18 Apr Air Canada
16 Apr - 30 Apr Aer Lingus
22 Apr - 19 May Air Canada
27 Apr - 07 May Delta
05 Apr - 17 Apr Air Canada
16 Apr - 23 Apr Aer Lingus
01 Apr - 09 Apr SWISS
16 Apr - 22 Apr Aer Lingus
08 Apr - 15 Apr Aer Lingus
22 Apr - 06 May Delta
30 Apr - 16 May Aer Lingus
23 Apr - 07 May Aer Lingus
21 Apr - 02 May Aer Lingus
28 Apr - 06 May Virgin Atlantic direct
23 Apr - 06 May United

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

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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.

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