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

Return flights

10 Apr - 23 Apr	Ryanair	direct
10 Apr - 13 Apr	Ryanair	direct
10 Apr - 01 May	Ryanair	direct
17 Apr - 20 Apr	Ryanair	direct
06 Apr - 23 Apr	Ryanair	direct
06 Apr - 09 Apr	Ryanair	direct
06 Apr - 10 Apr	Ryanair	direct
06 Apr - 13 Apr	Ryanair	direct
08 Apr - 10 Apr	Ryanair
07 Apr - 09 Apr	Wizz Air Malta
07 Apr - 11 Apr	Wizz Air Malta

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 $103

Return flights