Cheapest return flights from London to San Jose in September from 721€

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

08 Sep - 16 Sep jetBlue
05 Sep - 17 Sep jetBlue
13 Sep - 24 Sep jetBlue
09 Sep - 23 Sep jetBlue
09 Sep - 24 Sep jetBlue
09 Sep - 16 Sep jetBlue
15 Sep - 21 Sep jetBlue
18 Sep - 30 Sep jetBlue
13 Sep - 26 Sep jetBlue
22 Sep - 03 Oct jetBlue
12 Sep - 27 Sep jetBlue
18 Sep - 01 Oct SWISS
21 Sep - 02 Oct jetBlue
16 Sep - 07 Oct Air Europa
12 Sep - 01 Oct jetBlue
27 Sep - 07 Oct jetBlue
28 Sep - 11 Oct Air Europa
19 Sep - 04 Oct Air Europa
01 Sep - 03 Oct 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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