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

Return flights

08 Jul - 15 Jul	Air Transat
04 Jul - 25 Jul	Air Transat
08 Jul - 17 Jul	Air Transat
22 Jul - 01 Aug	Air Transat
22 Jul - 02 Aug	Air Transat
17 Jul - 27 Jul	Air Canada
23 Jul - 02 Aug	Air Transat
23 Jul - 01 Aug	Air Transat
30 Jul - 09 Aug	Avianca
28 Jul - 06 Aug	United
12 Jul - 22 Jul	Air Transat
28 Jul - 07 Aug	Air Canada
16 Jul - 31 Jul	Air Transat
25 Jul - 08 Aug	Avianca
24 Jul - 01 Aug	Avianca
13 Jul - 27 Jul	Air Transat
10 Jul - 26 Jul	Air Canada
06 Jul - 13 Jul	Air Canada
28 Jul - 10 Aug	United
08 Jul - 16 Jul	KLM

Also check the deals for one-way flights from London to San Jose in July.

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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Cheapest return flights from London to San Jose in July from $999

Return flights