Cheapest return flights from Washington to Lisbon in April from 463€

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

Return flights

02 Apr - 09 Apr Scandinavian Airlines
15 Apr - 22 Apr Scandinavian Airlines
01 Apr - 08 Apr Scandinavian Airlines
18 Apr - 25 Apr Scandinavian Airlines
22 Apr - 30 Apr Scandinavian Airlines
16 Apr - 23 Apr Turkish Airlines
21 Apr - 28 Apr Turkish Airlines
22 Apr - 29 Apr Turkish Airlines
23 Apr - 30 Apr Turkish Airlines
04 Apr - 11 Apr Scandinavian Airlines
30 Apr - 04 May SWISS
24 Apr - 01 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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