Cheapest return flights from Washington to Lisbon in January from 439€

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

Return flights

12 Jan - 19 Jan Scandinavian Airlines
19 Jan - 26 Jan Scandinavian Airlines
17 Jan - 23 Jan Scandinavian Airlines
25 Jan - 04 Feb Frontier Airlines
13 Jan - 11 Feb Icelandair
21 Jan - 28 Jan Scandinavian Airlines
16 Jan - 24 Jan Royal Air Maroc
25 Jan - 03 Feb Royal Air Maroc
13 Jan - 22 Jan Frontier Airlines
23 Jan - 01 Feb Royal Air Maroc
14 Jan - 21 Jan Icelandair
09 Jan - 16 Jan Icelandair
07 Jan - 14 Jan Icelandair
23 Jan - 30 Jan Royal Air Maroc
27 Jan - 03 Feb TAP direct
29 Jan - 05 Feb TAP direct
25 Jan - 04 Feb TAP direct
25 Jan - 03 Feb TAP direct
25 Jan - 01 Feb TAP direct
31 Jan - 07 Feb TAP direct

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

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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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