Cheapest return flights from London to San Jose in September from 608€

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

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

Return flights

06 Sep - 15 Sep jetBlue
10 Sep - 23 Sep jetBlue
08 Sep - 22 Sep jetBlue
19 Sep - 05 Oct jetBlue
26 Sep - 29 Sep jetBlue
11 Sep - 18 Sep jetBlue
27 Sep - 04 Oct jetBlue
06 Sep - 20 Sep jetBlue
19 Sep - 28 Sep jetBlue
12 Sep - 19 Sep jetBlue
15 Sep - 25 Sep jetBlue
04 Sep - 09 Sep jetBlue

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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