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

Return flights

20 Feb - 26 Feb	Royal Air Maroc
25 Feb - 04 Mar	Turkish Airlines
15 Feb - 24 Feb	SWISS
26 Feb - 07 Mar	Scandinavian Airlines
24 Feb - 02 Mar	Iberia
19 Feb - 23 Feb	Turkish Airlines
20 Feb - 25 Feb	Air Canada
15 Feb - 21 Feb	KLM
18 Feb - 24 Feb	Turkish Airlines
21 Feb - 24 Feb	Turkish Airlines
18 Feb - 23 Mar	Turkish Airlines
15 Feb - 24 Feb	TAP	direct
21 Feb - 28 Feb	Turkish Airlines
23 Feb - 28 Feb	Scandinavian Airlines
27 Feb - 08 Mar	Air Canada
24 Feb - 02 Mar	TAP	direct
18 Feb - 23 Mar	TAP	direct

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

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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Cheapest return flights from Washington to Lisbon in February from 483€

Return flights