Cheapest return flights from London to Shannon in December from $68

Best time to book flights for London (STN) to Shannon (SNN) flights at AirHint

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

Return flights

07 Dec - 20 Dec Ryanair direct
07 Dec - 16 Dec Ryanair direct
07 Dec - 19 Dec Ryanair direct
29 Dec - 04 Jan Ryanair direct
29 Dec - 05 Jan Ryanair direct
28 Dec - 04 Jan Ryanair direct
28 Dec - 05 Jan Ryanair direct
07 Dec - 23 Dec Ryanair direct
30 Dec - 04 Jan Ryanair direct
16 Dec - 19 Dec Ryanair direct
16 Dec - 04 Jan Ryanair direct
16 Dec - 05 Jan Ryanair direct
30 Dec - 05 Jan Ryanair direct
16 Dec - 23 Dec Ryanair direct
19 Dec - 20 Dec Ryanair direct
19 Dec - 19 Dec Ryanair direct
19 Dec - 04 Jan Ryanair direct
24 Dec - 04 Jan Ryanair direct
19 Dec - 23 Dec Ryanair direct
18 Dec - 20 Dec Ryanair direct

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

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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