Cheapest return SJO–LHR flights, May

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

Return flights

13 May - 18 May KLM
13 May - 17 May Air France
09 May - 16 May KLM
27 May - 06 Jun Iberia
23 May - 04 Jun Air France
27 May - 05 Jun KLM
25 May - 08 Jun Air France
28 May - 31 May Iberia
29 May - 18 Jun Lufthansa
15 May - 22 May United
30 May - 02 Jun United
21 May - 28 May Lufthansa
20 May - 22 May United
20 May - 05 Jun SWISS
19 May - 31 May Air France
21 May - 11 Jun KLM
21 May - 06 Jun Lufthansa
27 May - 04 Jun American Airlines

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

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