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

Return flights

01 Jul - 22 Jul	Virgin Atlantic
01 Jul - 15 Jul	Virgin Atlantic
12 Jul - 22 Jul	Virgin Atlantic
16 Jul - 01 Aug	Virgin Atlantic
07 Jul - 20 Jul	Virgin Atlantic
06 Jul - 13 Jul	Virgin Atlantic
21 Jul - 04 Aug	Air France	direct
30 Jul - 06 Aug	Aer Lingus
07 Jul - 29 Jul	KLM
06 Jul - 29 Jul	Air France
05 Jul - 23 Jul	Air France
15 Jul - 23 Jul	Delta
05 Jul - 21 Jul	Air France
30 Jul - 06 Aug	Air France	direct
25 Jul - 11 Aug	United	direct
21 Jul - 01 Aug	Delta
25 Jul - 07 Aug	Virgin Atlantic	direct
16 Jul - 01 Aug	Air France	direct

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

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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Cheapest return flights from San Francisco to London in July from 517€

Return flights