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

Return flights

01 Oct - 08 Oct	KLM
22 Oct - 29 Oct	Delta
07 Oct - 14 Oct	Delta
21 Oct - 28 Oct	Delta
15 Oct - 22 Oct	Delta
02 Oct - 09 Oct	Delta
29 Oct - 05 Nov	Delta
14 Oct - 21 Oct	Delta
03 Oct - 10 Oct	Delta
31 Oct - 07 Nov	Delta
08 Oct - 15 Oct	Delta
20 Oct - 27 Oct	Delta
30 Oct - 06 Nov	Delta
28 Oct - 04 Nov	Delta
27 Oct - 03 Nov	Delta
24 Oct - 15 Nov	Air France
25 Oct - 01 Nov	Delta
26 Oct - 02 Nov	Delta
16 Oct - 08 Nov	Air France
15 Oct - 08 Nov	Air France

Also check the deals for one-way flights from Dallas to Barcelona in October.

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 October from $583

Return flights