Cheapest return flights from London to Santander in December from $94

AirHint found the following cheapest return flights from London (STN) to Santander (SDR) in December 2025 (see full year).

Return flights

11 Dec - 23 Dec Ryanair direct
11 Dec - 20 Dec Ryanair direct
06 Dec - 11 Dec Ryanair direct
06 Dec - 08 Dec Ryanair direct
06 Dec - 23 Dec Ryanair direct
06 Dec - 20 Dec Ryanair direct
02 Dec - 06 Dec Ryanair direct
02 Dec - 11 Dec Ryanair direct
02 Dec - 08 Dec Ryanair direct
02 Dec - 20 Dec Ryanair direct
26 Dec - 13 Jan Ryanair direct
29 Dec - 13 Jan Ryanair direct
30 Dec - 13 Jan Ryanair direct
15 Dec - 01 Jan Ryanair direct
26 Dec - 01 Jan Ryanair direct
29 Dec - 01 Jan Ryanair direct
18 Dec - 01 Jan Ryanair direct
30 Dec - 01 Jan Ryanair direct
23 Dec - 01 Jan Ryanair direct
24 Dec - 03 Jan Ryanair

Also check the deals for one-way flights from London to Santander in December.

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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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