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

Return flights

23 Nov - 03 Dec	Air Canada
28 Nov - 05 Dec	TAP	direct
23 Nov - 03 Dec	TAP	direct
04 Nov - 11 Nov	United
14 Nov - 21 Nov	TAP	direct
19 Nov - 26 Nov	TAP	direct
27 Nov - 04 Dec	Scandinavian Airlines
09 Nov - 16 Nov	TAP	direct
29 Nov - 06 Dec	United
20 Nov - 29 Nov	Air Canada
21 Nov - 30 Nov	Air Canada
21 Nov - 30 Nov	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 $466

Return flights