Cheapest return flights from Chicago to Lisbon in October from 512€

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

Return flights

11 Oct - 18 Oct Scandinavian Airlines
02 Oct - 16 Oct TAP direct
24 Oct - 31 Oct TAP direct
06 Oct - 14 Oct Air France
13 Oct - 27 Oct Lufthansa
15 Oct - 22 Oct TAP direct
18 Oct - 25 Oct TAP direct
03 Oct - 25 Oct Finnair
02 Oct - 05 Oct Spirit Airlines
03 Oct - 25 Oct TAP direct

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

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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