Cheapest one-way flights from Washington to Lisbon in January from $249

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

One-Way flights

17 Jan Frontier Airlines
12 Jan Icelandair
16 Jan Frontier Airlines
21 Jan Royal Air Maroc
07 Jan Icelandair
15 Jan Frontier Airlines
12 Jan TAP direct
07 Jan TAP direct
16 Jan TAP direct
17 Jan TAP direct

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

Powered by

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon

Feel free to contact us with any feedback or request another flight research.