Cheapest return flights from London to San Jose in September from 689€

AirHint found the following cheapest return flights from London (STN) to San Jose (SJO) in September 2026 (see full year).

Return flights

02 Sep - 15 Sep Ryanair
03 Sep - 23 Sep Jet2
23 Sep - 30 Sep Ryanair
16 Sep - 01 Oct Ryanair
02 Sep - 16 Sep Ryanair
03 Sep - 16 Sep easyJet
04 Sep - 18 Sep Ryanair
22 Sep - 03 Oct Ryanair
07 Sep - 20 Sep Ryanair
19 Sep - 26 Sep Ryanair
13 Sep - 20 Sep easyJet

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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