Cheapest return flights from San Francisco to London in October from 571€

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 October 2025 (see full year).

Return flights

25 Oct - 01 Nov Aer Lingus
14 Oct - 28 Oct Iberia direct
08 Oct - 18 Oct Iberia direct
03 Oct - 18 Oct Iberia direct
07 Oct - 19 Oct Iberia direct
25 Oct - 01 Nov Iberia direct
30 Oct - 02 Nov Scandinavian Airlines
01 Oct - 11 Oct Air Canada
07 Oct - 21 Oct Finnair direct
13 Oct - 24 Oct Delta
07 Oct - 16 Oct Delta direct
01 Oct - 16 Oct Delta direct
01 Oct - 11 Oct Iberia direct
30 Oct - 02 Nov Iberia direct

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

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.

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