Cheapest return flights from Dallas-Fort Worth to Lisbon in September from $574

Best time to book flights for Dallas-Fort Worth (DFW) to Lisbon (LIS) flights at AirHint

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

Return flights

26 Sep - 02 Oct Finnair
23 Sep - 07 Oct Air Canada
30 Sep - 14 Oct Air Canada
24 Sep - 08 Oct Air Canada
19 Sep - 26 Sep Finnair
17 Sep - 23 Sep Finnair
30 Sep - 07 Oct Air Canada
29 Sep - 13 Oct Air Canada
22 Sep - 29 Sep Air Canada
23 Sep - 04 Oct Air Canada
21 Sep - 28 Sep Finnair
21 Sep - 01 Oct Iberia
27 Sep - 11 Oct Air Canada
11 Sep - 17 Sep Spirit Airlines
15 Sep - 18 Sep Spirit Airlines
03 Sep - 17 Sep Air Canada
02 Sep - 09 Sep Finnair
10 Sep - 24 Sep Air Canada
05 Sep - 19 Sep Air Canada

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon