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

Return flights

27 Jan - 03 Feb	Lufthansa
14 Jan - 21 Jan	Lufthansa
13 Jan - 21 Jan	Lufthansa
21 Jan - 28 Jan	Lufthansa
22 Jan - 27 Jan	Lufthansa
29 Jan - 05 Feb	Lufthansa
12 Jan - 18 Jan	Lufthansa
17 Jan - 25 Jan	Icelandair
30 Jan - 06 Feb	Lufthansa
16 Jan - 23 Jan	Brussels Airlines
16 Jan - 30 Jan	Brussels Airlines
14 Jan - 21 Jan	TAP	direct
18 Jan - 01 Feb	TAP	direct
21 Jan - 04 Feb	TAP	direct
18 Jan - 25 Jan	TAP	direct
25 Jan - 01 Feb	TAP	direct
31 Jan - 07 Feb	Brussels Airlines
30 Jan - 06 Feb	TAP	direct
21 Jan - 18 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 $443

Return flights