Cheapest one-way flights from Chicago to Lisbon in October from 228€

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

One-Way flights

31 Oct WestJet
17 Oct Frontier Airlines
31 Oct TAP direct
04 Oct Spirit Airlines
19 Oct TAP direct
03 Oct TAP direct
24 Oct TAP direct
02 Oct Frontier Airlines
20 Oct Frontier Airlines
17 Oct TAP direct

Also check the deals for return 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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