AirHint found the following cheapest return flights from San Sebastian (EAS) to London (LCY) in April 2026 (see full year).

Return flights

06 Apr - 07 Apr	Iberia
06 Apr - 10 Apr	Iberia
23 Apr - 26 Apr	Iberia
06 Apr - 09 Apr	Iberia
05 Apr - 13 Apr	British Airways	direct
06 Apr - 12 Apr	Iberia
05 Apr - 06 Apr	British Airways	direct
24 Apr - 27 Apr	British Airways	direct
03 Apr - 07 Apr	Iberia
10 Apr - 13 Apr	British Airways	direct
26 Apr - 03 May	British Airways	direct
30 Apr - 03 May	Vueling Airlines
27 Apr - 01 May	Iberia
25 Apr - 02 May	Iberia
26 Apr - 01 May	Vueling Airlines
27 Apr - 01 May	British Airways	direct
26 Apr - 01 May	British Airways	direct

Also check the deals for one-way flights from San Sebastian to London in April.

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 Sebastian to London in April from 224€

Return flights