AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to Lisbon (LIS) in October 2025 (see full year).

Return flights

22 Oct - 27 Oct	Air France
27 Oct - 03 Nov	Delta
05 Oct - 15 Oct	Iberia
18 Oct - 08 Nov	Air Canada
13 Oct - 08 Nov	Iberia
08 Oct - 15 Oct	Air France
08 Oct - 14 Oct	Air France
15 Oct - 08 Nov	Lufthansa
06 Oct - 01 Nov	KLM
02 Oct - 06 Oct	Iberia
04 Oct - 14 Oct	Air France
22 Oct - 29 Oct	Delta
12 Oct - 01 Nov	KLM
03 Oct - 08 Oct	Air France
11 Oct - 24 Oct	Air Canada
02 Oct - 08 Oct	Iberia
17 Oct - 02 Nov	Delta
18 Oct - 02 Nov	Delta

Also check the deals for one-way flights from Dallas-Fort Worth to Lisbon 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-Fort Worth to Lisbon in October from $504

Return flights