Cheapest return flights from Washington to Lisbon in March from $565

AirHint found the following cheapest return flights from Washington (IAD) to Lisbon (LIS) in March 2026 (see full year).

Return flights

24 Mar - 30 Mar Aer Lingus
10 Mar - 17 Mar Air Canada
03 Mar - 10 Mar Turkish Airlines
05 Mar - 10 Mar Turkish Airlines
02 Mar - 10 Mar Turkish Airlines
05 Mar - 11 Mar Turkish Airlines
03 Mar - 11 Mar Turkish Airlines
04 Mar - 11 Mar Turkish Airlines
11 Mar - 17 Mar Turkish Airlines
11 Mar - 18 Mar Turkish Airlines
31 Mar - 06 Apr ITA Airways
24 Mar - 01 Apr Turkish Airlines
31 Mar - 05 Apr ITA Airways
26 Mar - 03 Apr Porter Airlines (Canada) Ltd
28 Mar - 05 Apr Porter Airlines (Canada) Ltd
27 Mar - 05 Apr Frontier Airlines
27 Mar - 04 Apr Allegiant Air
25 Mar - 01 Apr TAP
28 Mar - 06 Apr Lufthansa
25 Mar - 05 Apr United

Also check the deals for one-way flights from Washington to Lisbon in March.

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