Cheapest return flights from San Francisco to London in May from 558€

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 May 2025 (see full year).

Return flights

04 May - 21 May Iberia direct
06 May - 13 May Iberia direct
07 May - 14 May Iberia direct
15 May - 20 May Aer Lingus
13 May - 20 May Aer Lingus
08 May - 14 May Aer Lingus
09 May - 15 May Aer Lingus
10 May - 15 May Aer Lingus
17 May - 23 May Aer Lingus
16 May - 23 May Aer Lingus
19 May - 11 Jun Aer Lingus
15 May - 01 Jun Aer Lingus
15 May - 01 Jun Iberia direct
21 May - 08 Jun Aer Lingus
19 May - 11 Jun Iberia direct
15 May - 02 Jun Aer Lingus
20 May - 05 Jun Aer Lingus
21 May - 11 Jun Aer Lingus
11 May - 08 Jun Aer Lingus
20 May - 10 Jun Aer Lingus

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

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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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