Cheapest return flights from London to San Jose in September from 661€

AirHint found the following cheapest return flights from London (LHR) to San Jose (SJO) in September 2026 (see full year).

Return flights

02 Sep - 15 Sep SWISS
04 Sep - 18 Sep SWISS
10 Sep - 27 Sep SWISS
17 Sep - 30 Sep SWISS
01 Sep - 30 Sep Air Canada
17 Sep - 24 Sep SWISS
05 Sep - 22 Sep Air Canada
30 Sep - 15 Oct Air Canada
13 Sep - 26 Sep Air Canada
24 Sep - 03 Oct Lufthansa
07 Sep - 22 Sep Lufthansa
07 Sep - 23 Sep Lufthansa
20 Sep - 06 Oct Air Canada
24 Sep - 04 Oct Air Canada
25 Sep - 09 Oct Air Canada
26 Sep - 10 Oct Air Canada

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

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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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