AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to Dublin (DUB) in December 2025 (see full year).

Return flights

30 Dec - 31 Jan	Lufthansa
02 Dec - 09 Dec	Lufthansa
27 Dec - 17 Jan	Finnair
08 Dec - 11 Dec	Scandinavian Airlines
31 Dec - 07 Jan	Spirit Airlines
27 Dec - 07 Jan	Spirit Airlines
17 Dec - 24 Dec	Spirit Airlines
31 Dec - 07 Jan	Iberia	direct
11 Dec - 14 Dec	Spirit Airlines
10 Dec - 11 Dec	Spirit Airlines
27 Dec - 07 Jan	Iberia	direct
25 Dec - 02 Jan	Air Canada
10 Dec - 17 Dec	Aer Lingus
18 Dec - 10 Jan	Frontier Airlines
16 Dec - 30 Dec	Delta
11 Dec - 14 Dec	Finnair	direct
16 Dec - 23 Dec	Aer Lingus
17 Dec - 30 Dec	Delta
26 Dec - 04 Jan	Air Canada
25 Dec - 01 Jan	KLM

Also check the deals for one-way flights from Dallas-Fort Worth to Dublin 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 Dallas-Fort Worth to Dublin in December from $491

Return flights