Cheapest return flights from London to Shannon in December from $72

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

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

Return flights

31 Dec - 05 Jan Ryanair direct
30 Dec - 05 Jan Ryanair direct
29 Dec - 05 Jan Ryanair direct
05 Dec - 07 Dec Ryanair direct
19 Dec - 05 Jan Ryanair direct
19 Dec - 21 Dec Ryanair direct
31 Dec - 03 Jan Ryanair direct
19 Dec - 22 Dec Ryanair direct
20 Dec - 05 Jan Ryanair direct
19 Dec - 23 Dec Ryanair direct
20 Dec - 21 Dec Ryanair direct
20 Dec - 22 Dec Ryanair direct
20 Dec - 23 Dec Ryanair direct
19 Dec - 26 Dec Ryanair direct
21 Dec - 05 Jan Ryanair direct
30 Dec - 03 Jan Ryanair direct
20 Dec - 26 Dec Ryanair direct
29 Dec - 03 Jan Ryanair direct
21 Dec - 22 Dec Ryanair direct
22 Dec - 05 Jan 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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