Cheapest return flights from Santander to London in September from $90

Best time to book flights for Santander (SDR) to London (STN) flights at AirHint

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

Return flights

10 Sep - 14 Sep Ryanair direct
10 Sep - 21 Sep Ryanair direct
20 Sep - 21 Sep Ryanair direct
24 Sep - 10 Oct Ryanair direct
24 Sep - 07 Oct Ryanair direct
24 Sep - 08 Oct Ryanair direct
24 Sep - 05 Oct Ryanair direct
20 Sep - 10 Oct Ryanair direct
20 Sep - 07 Oct Ryanair direct
20 Sep - 08 Oct Ryanair direct
20 Sep - 05 Oct Ryanair direct
21 Sep - 10 Oct Ryanair direct
21 Sep - 07 Oct Ryanair direct
10 Sep - 19 Sep Ryanair direct
09 Sep - 14 Sep Ryanair direct
09 Sep - 21 Sep Ryanair direct
09 Sep - 19 Sep Ryanair direct
16 Sep - 21 Sep Ryanair direct
10 Sep - 24 Sep Ryanair direct
20 Sep - 24 Sep Ryanair direct

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

Skyscanner

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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