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

Return flights

30 Jul - 31 Aug	Avianca
22 Jul - 27 Aug	Avianca
30 Jul - 13 Aug	Avianca
31 Jul - 13 Aug	Avianca
30 Jul - 09 Aug	Avianca
29 Jul - 09 Aug	Avianca
29 Jul - 10 Aug	Avianca
17 Jul - 21 Jul	Avianca
14 Jul - 31 Jul	Spirit Airlines
17 Jul - 03 Aug	Avianca
19 Jul - 03 Aug	Avianca
08 Jul - 23 Jul	Spirit Airlines
09 Jul - 20 Jul	Avianca
12 Jul - 19 Jul	Avianca
11 Jul - 18 Jul	Avianca

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 $621

Return flights