AirHint found the following cheapest return flights from Dallas (DAL) to Barcelona (BCN) in October 2025 (see full year).
Return flights
| 27 Oct - 12 Nov | Delta | ||
| 26 Oct - 11 Nov | Delta | ||
| 28 Oct - 04 Nov | Air France | ||
| 27 Oct - 22 Nov | KLM | ||
| 30 Oct - 11 Nov | KLM | ||
| 24 Oct - 15 Nov | KLM | ||
| 25 Oct - 15 Nov | Air France |
Also check the deals for one-way flights from Dallas to Barcelona in October.
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