Cheapest return flights from Santander to London in December from $53

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

Return flights

29 Dec - 01 Jan Ryanair direct
29 Dec - 19 Jan Ryanair direct
29 Dec - 12 Jan Ryanair direct
29 Dec - 06 Jan Ryanair direct
29 Dec - 17 Jan Ryanair direct
29 Dec - 08 Jan Ryanair direct
29 Dec - 10 Jan Ryanair direct
29 Dec - 15 Jan Ryanair direct
29 Dec - 13 Jan Ryanair direct
29 Dec - 05 Jan Ryanair direct
29 Dec - 30 Dec Ryanair direct
27 Dec - 30 Dec Ryanair direct
26 Dec - 30 Dec Ryanair direct
27 Dec - 29 Dec Ryanair direct
27 Dec - 28 Dec Ryanair
26 Dec - 27 Dec Ryanair direct
28 Dec - 30 Dec Volotea
26 Dec - 29 Dec Ryanair direct
25 Dec - 27 Dec Vueling Airlines
26 Dec - 28 Dec Ryanair

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