Cheapest return flights from Dallas-Fort Worth to Lisbon in May from $599

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 May 2025 (see full year).

Return flights

08 May - 20 May Finnair
17 May - 24 May Delta
26 May - 03 Jun Finnair
14 May - 30 May Finnair
25 May - 02 Jun Finnair
27 May - 04 Jun Finnair
28 May - 05 Jun Finnair
22 May - 30 May Delta
24 May - 31 May Delta
31 May - 07 Jun Delta
23 May - 31 May Delta
24 May - 01 Jun Delta
21 May - 29 May Air Canada

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

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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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