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

Return flights

28 Jul - 12 Aug	Lufthansa	direct
28 Jul - 07 Aug	Virgin Atlantic
29 Jul - 13 Aug	Finnair
22 Jul - 07 Aug	Virgin Atlantic
29 Jul - 12 Aug	Virgin Atlantic
23 Jul - 06 Aug	Virgin Atlantic
30 Jul - 14 Aug	KLM
24 Jul - 22 Aug	Virgin Atlantic
30 Jul - 13 Aug	KLM
08 Jul - 29 Jul	Virgin Atlantic
08 Jul - 22 Jul	Virgin Atlantic
07 Jul - 25 Jul	Virgin Atlantic
09 Jul - 22 Jul	Virgin Atlantic
15 Jul - 29 Jul	Virgin Atlantic
22 Jul - 12 Aug	Delta
12 Jul - 29 Jul	Virgin Atlantic
07 Jul - 22 Jul	Air France
07 Jul - 29 Jul	KLM
25 Jul - 30 Jul	Virgin Atlantic
15 Jul - 24 Jul	Delta

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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from San Francisco to London in July from 433€

Return flights