AirHint found the following cheapest return flights from Dallas (DAL) to Barcelona (BCN) in December 2025 (see full year).

Return flights

01 Dec - 14 Dec	Air France
22 Dec - 10 Jan	Delta
23 Dec - 10 Jan	Delta
22 Dec - 05 Jan	Delta
21 Dec - 31 Dec	Delta
21 Dec - 10 Jan	Delta
21 Dec - 05 Jan	Delta
30 Dec - 05 Jan	Air France
25 Dec - 05 Jan	Air France
18 Dec - 05 Jan	Delta
18 Dec - 25 Dec	KLM
27 Dec - 02 Jan	Air France
22 Dec - 04 Jan	Delta
18 Dec - 26 Dec	KLM
19 Dec - 26 Dec	KLM

Also check the deals for one-way flights from Dallas to Barcelona 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 to Barcelona in December from 542€

Return flights