Cheapest one-way flights from Washington to Lisbon in January from 236€

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

One-Way flights

13 Jan Frontier Airlines
11 Jan Frontier Airlines
15 Jan Frontier Airlines
23 Jan Frontier Airlines
10 Jan Frontier Airlines
06 Jan Frontier Airlines
05 Jan Icelandair
01 Jan Icelandair
04 Jan Lufthansa
02 Jan Royal Air Maroc

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

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