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

Return flights

21 Jan - 28 Jan	TAP	direct
23 Jan - 30 Jan	TAP	direct
25 Jan - 01 Feb	TAP	direct
26 Jan - 02 Feb	British Airways
22 Jan - 29 Jan	Scandinavian Airlines
08 Jan - 15 Jan	United
18 Jan - 25 Jan	TAP	direct
24 Jan - 31 Jan	United
04 Jan - 08 Jan	Scandinavian Airlines

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 $486

Return flights