Cheapest return flights from Chicago to Lisbon in October from 486€

Best time to book flights for Chicago (ORD) to Lisbon (LIS) flights at AirHint

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

Return flights

28 Oct - 11 Nov Finnair
29 Oct - 12 Nov British Airways
22 Oct - 11 Nov Finnair
19 Oct - 29 Oct Finnair
15 Oct - 22 Oct Finnair
15 Oct - 24 Oct Finnair
19 Oct - 29 Oct TAP direct
29 Oct - 12 Nov TAP direct
17 Oct - 28 Oct Finnair
18 Oct - 28 Oct Finnair
15 Oct - 25 Oct Finnair
15 Oct - 22 Oct TAP direct
15 Oct - 24 Oct TAP direct
16 Oct - 23 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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