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

Return flights

12 Nov - 19 Nov	British Airways
16 Nov - 26 Nov	Air France
30 Nov - 10 Dec	Virgin Atlantic
02 Nov - 03 Dec	Air France
05 Nov - 11 Nov	Air France
25 Nov - 01 Dec	Air France
26 Nov - 01 Dec	KLM
12 Nov - 19 Nov	TAP	direct
30 Nov - 10 Dec	TAP	direct
07 Nov - 12 Nov	Iberia
10 Nov - 22 Nov	British Airways
09 Nov - 16 Nov	Icelandair
13 Nov - 17 Nov	Air France
06 Nov - 12 Nov	Air France
06 Nov - 11 Nov	Air France
30 Nov - 06 Dec	Air France
30 Nov - 07 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 378€

Return flights