Cheapest one-way flights from Washington to Lisbon in January from 220€

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

One-Way flights

15 Jan Frontier Airlines
09 Jan Frontier Airlines
10 Jan Frontier Airlines
11 Jan Frontier Airlines
12 Jan Frontier Airlines
14 Jan Frontier Airlines
16 Jan Frontier Airlines
17 Jan Frontier Airlines
07 Jan Frontier Airlines
19 Jan Frontier Airlines

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

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