Cheapest return flights from London to San Jose in September from $681

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

22 Sep - 06 Oct Norse Atlantic Airways (UK)
09 Sep - 22 Sep Norse Atlantic Airways (UK)
11 Sep - 22 Sep Norse Atlantic Airways (UK)
11 Sep - 27 Sep Norse Atlantic Airways (UK)
06 Sep - 20 Sep Norse Atlantic Airways (UK)
01 Sep - 22 Sep Norse Atlantic Airways (UK)
12 Sep - 27 Sep Air France
23 Sep - 06 Oct Air France
11 Sep - 25 Sep Norse Atlantic Airways (UK)
04 Sep - 18 Sep Air France
18 Sep - 25 Sep Norse Atlantic Airways (UK)
06 Sep - 14 Sep Air France
20 Sep - 04 Oct Air Canada
19 Sep - 02 Oct Air Canada
21 Sep - 05 Oct KLM

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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