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 2026 (see full year).

Return flights

28 Oct - 04 Nov Delta
25 Oct - 31 Oct British Airways
04 Oct - 12 Oct Air France
05 Oct - 20 Oct Air France
11 Oct - 28 Oct Air France
28 Oct - 04 Nov TAP direct
24 Oct - 30 Oct British Airways
11 Oct - 29 Nov United
12 Oct - 31 Oct Turkish Airlines
09 Oct - 20 Oct Aer Lingus
11 Oct - 29 Nov TAP direct
24 Oct - 30 Oct TAP direct

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

Powered by

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon

Feel free to contact us with any feedback or request another flight research.