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

Return flights

16 Nov - 26 Nov	Scandinavian Airlines
30 Nov - 03 Dec	Scandinavian Airlines
02 Nov - 05 Nov	Scandinavian Airlines
15 Nov - 06 Dec	Scandinavian Airlines
12 Nov - 19 Nov	United
16 Nov - 26 Nov	TAP	direct
18 Nov - 25 Nov	United
07 Nov - 14 Nov	TAP	direct
28 Nov - 05 Dec	TAP	direct
05 Nov - 11 Nov	British Airways
24 Nov - 01 Dec	SWISS
13 Nov - 22 Nov	Scandinavian Airlines
12 Nov - 19 Nov	TAP	direct
12 Nov - 16 Nov	Icelandair
27 Nov - 04 Dec	United
26 Nov - 01 Dec	SWISS
19 Nov - 19 Dec	Lufthansa
14 Nov - 06 Dec	British Airways
19 Nov - 19 Dec	TAP	direct
30 Nov - 03 Dec	TAP	direct

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

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 November from 348€

Return flights