Cheapest return flights from London to San Jose in September from 577€

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

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

Return flights

16 Sep - 23 Sep jetBlue
09 Sep - 24 Sep jetBlue
24 Sep - 01 Oct jetBlue
22 Sep - 06 Oct jetBlue
15 Sep - 30 Sep jetBlue
22 Sep - 08 Oct Lufthansa
08 Sep - 15 Sep jetBlue
08 Sep - 25 Sep jetBlue
11 Sep - 15 Sep Lufthansa
12 Sep - 22 Sep jetBlue
15 Sep - 29 Sep jetBlue
28 Sep - 06 Oct jetBlue
13 Sep - 24 Sep jetBlue
12 Sep - 15 Sep SWISS
01 Sep - 03 Oct Air France
25 Sep - 02 Oct SWISS
22 Sep - 04 Oct jetBlue
20 Sep - 04 Oct KLM
19 Sep - 05 Oct KLM
25 Sep - 03 Oct United

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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