Cheapest return flights from Chicago to Lisbon in December from 403€

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

Return flights

05 Dec - 14 Dec TAP direct
12 Dec - 23 Dec Air Canada
27 Dec - 07 Jan Scandinavian Airlines
26 Dec - 31 Dec Scandinavian Airlines
14 Dec - 21 Dec TAP direct
31 Dec - 04 Jan British Airways
10 Dec - 30 Dec TAP
25 Dec - 02 Jan British Airways
26 Dec - 02 Jan British Airways
18 Dec - 25 Dec United
21 Dec - 28 Dec TAP direct
22 Dec - 02 Jan Air Canada
24 Dec - 04 Jan Scandinavian Airlines
26 Dec - 31 Dec TAP direct
31 Dec - 04 Jan TAP direct
26 Dec - 04 Jan Icelandair
26 Dec - 03 Jan British Airways
28 Dec - 04 Jan TAP direct

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

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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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