Cheapest return flights from London to Bilbao in April from $218

AirHint found the following cheapest return flights from London (LHR) to Bilbao (BIO) in April 2026 (see full year).

Return flights

13 Apr - 17 Apr Iberia
18 Apr - 25 Apr Iberia
19 Apr - 22 Apr Iberia
25 Apr - 26 Apr Iberia
28 Apr - 28 Apr Iberia
16 Apr - 19 Apr Lufthansa
24 Apr - 26 Apr Lufthansa
27 Apr - 27 Apr British Airways
17 Apr - 20 Apr Lufthansa
10 Apr - 14 Apr Iberia
30 Apr - 04 May KLM

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

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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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