Cheapest one-way flights from Chicago to Lisbon in August from 246€

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

One-Way flights

25 Aug Aer Lingus
16 Aug Spirit Airlines
20 Aug Spirit Airlines
22 Aug Spirit Airlines
03 Aug TAP direct
29 Aug Aer Lingus
28 Aug Spirit Airlines
21 Aug Spirit Airlines
21 Aug TAP direct
16 Aug TAP direct

Also check the deals for return flights from Chicago to Lisbon in August.

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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