Cheapest return flights from Washington to Lisbon in April from 538€

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

Return flights

21 Apr - 29 Apr Turkish Airlines
23 Apr - 28 Apr Turkish Airlines
15 Apr - 22 Apr Turkish Airlines
16 Apr - 22 Apr Turkish Airlines
22 Apr - 29 Apr Turkish Airlines
20 Apr - 29 Apr Turkish Airlines
06 Apr - 08 May Turkish Airlines
30 Apr - 08 May Turkish Airlines
22 Apr - 30 Apr Turkish Airlines
13 Apr - 21 Apr Scandinavian Airlines
24 Apr - 28 Apr Turkish Airlines
24 Apr - 30 Apr Turkish Airlines
06 Apr - 08 May TAP direct
28 Apr - 05 May TAP direct
30 Apr - 10 May Turkish Airlines
03 Apr - 03 May Frontier Airlines
24 Apr - 01 May TAP direct
30 Apr - 04 May Turkish Airlines
30 Apr - 08 May TAP direct
26 Apr - 03 May TAP direct

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

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