Cheapest return flights from Dallas to Lisbon in September from $781

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

Return flights

08 Sep - 18 Sep Delta
09 Sep - 16 Sep Delta
07 Sep - 17 Sep Delta
01 Sep - 04 Sep Delta
11 Sep - 18 Sep Delta
10 Sep - 17 Sep Delta
12 Sep - 24 Sep Delta
12 Sep - 19 Sep Delta
15 Sep - 11 Oct Air France
17 Sep - 24 Sep Scandinavian Airlines
23 Sep - 30 Sep Scandinavian Airlines
18 Sep - 01 Oct Scandinavian Airlines

Also check the deals for one-way flights from Dallas 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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