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

Return flights

21 Jul - 12 Aug	KLM
29 Jul - 10 Aug	Air France
07 Jul - 17 Jul	Air France
29 Jul - 09 Aug	Air France
22 Jul - 29 Jul	Avianca
30 Jul - 09 Aug	Air France
21 Jul - 28 Jul	KLM
16 Jul - 21 Jul	Air France
01 Jul - 06 Jul	KLM
29 Jul - 05 Aug	Air France
17 Jul - 21 Jul	KLM
01 Jul - 08 Jul	KLM
18 Jul - 26 Jul	Air France
17 Jul - 03 Aug	Iberia
07 Jul - 18 Jul	British Airways
14 Jul - 21 Jul	United
28 Jul - 03 Aug	Iberia

Also check the deals for one-way flights from San Jose to London 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 San Jose to London in July from $732

Return flights