Cheapest return flights from London to San Jose in September from $753

Best time to book flights for London (LHR) to San Jose (SJO) flights at AirHint

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

Return flights

03 Sep - 20 Sep Air France
18 Sep - 28 Sep Air Canada
07 Sep - 20 Sep Air France
07 Sep - 21 Sep Air France
08 Sep - 28 Sep KLM
08 Sep - 20 Sep KLM
12 Sep - 01 Oct KLM
10 Sep - 23 Sep KLM
09 Sep - 20 Sep KLM
08 Sep - 22 Sep KLM
12 Sep - 26 Sep Air Canada

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