Cheapest return flights from Dallas-Fort Worth to Lisbon in September from 490€

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

Return flights

21 Sep - 30 Sep Finnair
19 Sep - 26 Sep Finnair
29 Sep - 13 Oct Finnair
21 Sep - 07 Oct Delta
22 Sep - 08 Oct Delta
23 Sep - 09 Oct Delta
28 Sep - 14 Oct Delta
30 Sep - 16 Oct Delta
29 Sep - 06 Oct United
29 Sep - 15 Oct Delta
21 Sep - 29 Sep Delta
17 Sep - 01 Oct Air France
17 Sep - 24 Sep Air France
24 Sep - 10 Oct Delta
20 Sep - 27 Sep Air France
02 Sep - 08 Sep Frontier Airlines
02 Sep - 10 Sep Frontier Airlines
09 Sep - 15 Sep Frontier Airlines
14 Sep - 20 Sep Frontier Airlines
06 Sep - 12 Sep Frontier Airlines

Also check the deals for one-way flights from Dallas-Fort Worth to Lisbon in September.

Skyscanner

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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