Cheapest return flights from Chicago to Lisbon in December from $492

Best time to book flights for Chicago (ORD) to Lisbon (LIS) flights at AirHint

AirHint found the following cheapest return flights from Chicago (ORD) to Lisbon (LIS) in December 2025 (see full year).

Return flights

09 Dec - 16 Dec Air Canada
10 Dec - 17 Dec British Airways
11 Dec - 18 Dec Air Canada
10 Dec - 17 Dec TAP direct
23 Dec - 30 Dec British Airways
21 Dec - 28 Dec Lufthansa
22 Dec - 29 Dec Air Canada
12 Dec - 02 Jan TAP direct
21 Dec - 28 Dec TAP direct
20 Dec - 27 Dec Air Canada
19 Dec - 26 Dec TAP direct

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

Skyscanner

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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