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

Return flights

05 Dec - 07 Dec	Ryanair	direct
07 Dec - 10 Dec	Ryanair	direct
06 Dec - 08 Dec	Ryanair
05 Dec - 08 Dec	Ryanair
31 Dec - 03 Jan	Ryanair
31 Dec - 03 Jan	Ryanair	direct
30 Dec - 02 Jan	Ryanair
14 Dec - 28 Dec	Ryanair	direct
25 Dec - 28 Dec	easyJet

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

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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Cheapest return flights from Alicante to Shannon in December from $82

Return flights