Cheapest return flights from Washington to Lisbon in April from $691

Best time to book flights for Washington (IAD) to Lisbon (LIS) flights at AirHint

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

Return flights

24 Apr - 02 May Scandinavian Airlines
08 Apr - 22 Apr Turkish Airlines
08 Apr - 22 Apr United direct
11 Apr - 17 Apr Turkish Airlines
05 Apr - 19 Apr Turkish Airlines
05 Apr - 19 Apr United direct
24 Apr - 02 May TAP direct

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

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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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