AirHint found the following cheapest return flights from Castellón (CDT) to London (STN) in April 2026 (see full year).

Return flights

30 Apr - 04 May	Ryanair	direct
27 Apr - 04 May	Ryanair	direct
30 Apr - 01 May	Ryanair	direct
03 Apr - 09 Apr	Ryanair	direct
03 Apr - 13 Apr	Ryanair	direct
27 Apr - 01 May	Ryanair	direct
06 Apr - 09 Apr	Ryanair	direct
06 Apr - 13 Apr	Ryanair	direct
03 Apr - 24 Apr	Ryanair	direct
06 Apr - 24 Apr	Ryanair	direct
30 Apr - 03 May	Ryanair
11 Apr - 13 Apr	Ryanair

Also check the deals for one-way flights from Castellón 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 Castellón to London in April from 74€

Return flights