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

Return flights

25 Jan - 01 Feb	Scandinavian Airlines
14 Jan - 21 Jan	United
20 Jan - 27 Jan	United
27 Jan - 03 Feb	United
06 Jan - 13 Jan	United
13 Jan - 20 Jan	Air Canada
07 Jan - 14 Jan	United
21 Jan - 28 Jan	Air France
28 Jan - 04 Feb	Air France
07 Jan - 11 Jan	Icelandair
24 Jan - 31 Jan	Scandinavian Airlines
29 Jan - 05 Feb	Scandinavian Airlines
12 Jan - 19 Jan	SWISS
19 Jan - 26 Jan	SWISS
26 Jan - 02 Feb	SWISS
31 Jan - 07 Feb	Scandinavian Airlines
25 Jan - 07 Feb	Scandinavian Airlines
30 Jan - 06 Feb	United
28 Jan - 04 Feb	TAP	direct
25 Jan - 01 Feb	TAP	direct

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

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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Cheapest return flights from Chicago to Lisbon in January from $400

Return flights