Cheapest return flights from London to San Jose in September from $997

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

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

Return flights

09 Sep - 20 Sep SWISS
01 Sep - 08 Sep Delta
08 Sep - 20 Sep KLM
03 Sep - 20 Sep KLM
10 Sep - 23 Sep Delta
08 Sep - 22 Sep Delta
18 Sep - 28 Sep Delta
12 Sep - 01 Oct Delta
07 Sep - 21 Sep Delta
13 Sep - 23 Sep Delta

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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