Cheapest one-way flights from Washington to Lisbon in March from 231€

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

One-Way flights

21 Mar Frontier Airlines
07 Mar Icelandair
25 Mar Royal Air Maroc
29 Mar Royal Air Maroc
26 Mar Frontier Airlines
28 Mar Lufthansa
27 Mar Porter Airlines (Canada) Ltd
25 Mar TAP direct
21 Mar TAP direct
26 Mar TAP direct

Also check the deals for return flights from Washington to Lisbon in March.

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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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