Cheapest return flights from San Jose to London in September from $700

AirHint found the following cheapest return flights from San Jose (SJO) to London (LHR) in September 2025 (see full year).

Return flights

18 Sep - 25 Sep KLM
12 Sep - 24 Sep Air France
11 Sep - 24 Sep KLM
15 Sep - 29 Sep Air France
16 Sep - 25 Sep Air France
11 Sep - 20 Sep KLM
17 Sep - 30 Sep Air France
10 Sep - 20 Sep Air France
06 Sep - 15 Sep Air France
26 Sep - 18 Oct Air France
18 Sep - 29 Sep United
12 Sep - 12 Oct United

Also check the deals for one-way flights from San Jose to London in September.

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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