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

Return flights

09 Jan - 12 Jan	Ryanair	direct
12 Jan - 26 Jan	Ryanair	direct
16 Jan - 26 Jan	Ryanair	direct
09 Jan - 26 Jan	Ryanair	direct
19 Jan - 26 Jan	Ryanair	direct
02 Jan - 12 Jan	Ryanair	direct
05 Jan - 12 Jan	Ryanair	direct
05 Jan - 26 Jan	Ryanair	direct
01 Jan - 05 Jan	Iberia

Also check the deals for one-way flights from Castellón to London in January.

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 January from $68

Return flights