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

Return flights

10 Dec - 17 Dec	United
11 Dec - 24 Dec	Finnair	direct
31 Dec - 24 Jan	United
06 Dec - 14 Dec	Air Canada
06 Dec - 14 Dec	Finnair	direct
06 Dec - 13 Dec	Iberia
06 Dec - 13 Dec	Finnair	direct
04 Dec - 14 Dec	Spirit Airlines
03 Dec - 13 Dec	Frontier Airlines
07 Dec - 14 Dec	Aer Lingus
04 Dec - 14 Dec	Finnair	direct
26 Dec - 04 Jan	Spirit Airlines
20 Dec - 01 Jan	Air France
25 Dec - 02 Jan	Iberia
26 Dec - 04 Jan	Finnair	direct
20 Dec - 02 Jan	Air France
20 Dec - 01 Jan	Finnair	direct
20 Dec - 02 Jan	Finnair	direct
28 Dec - 04 Jan	Aer Lingus

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 447€

Return flights