Cheapest return flights from Washington to Lisbon in January from 401€

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

Return flights

14 Jan - 21 Jan Air Canada
19 Jan - 26 Jan Air Canada
12 Jan - 19 Jan Air Canada
09 Jan - 16 Jan Icelandair
28 Jan - 04 Feb Scandinavian Airlines
16 Jan - 23 Jan Icelandair
23 Jan - 30 Jan Icelandair
24 Jan - 31 Jan Scandinavian Airlines
25 Jan - 01 Feb Scandinavian Airlines
30 Jan - 06 Feb Icelandair
31 Jan - 07 Feb Scandinavian Airlines
11 Jan - 18 Jan Scandinavian Airlines
18 Jan - 25 Jan Scandinavian Airlines
21 Jan - 28 Jan Scandinavian Airlines
29 Jan - 05 Feb Scandinavian Airlines
26 Jan - 02 Feb Scandinavian Airlines
27 Jan - 03 Feb Icelandair
25 Jan - 01 Feb TAP direct
27 Jan - 03 Feb TAP direct
30 Jan - 06 Feb TAP direct

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

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