Cheapest one-way flights from Chicago to Lisbon in August from 359€

AirHint found the following cheapest one-way flights from Chicago (MDW) to Lisbon (LIS) in August 2026 (see full year).

One-Way flights

09 Aug Porter Airlines (Canada) Ltd
17 Aug Porter Airlines (Canada) Ltd
10 Aug Porter Airlines (Canada) Ltd
19 Aug Frontier Airlines
30 Aug Delta
31 Aug Virgin Atlantic
04 Aug Virgin Atlantic
05 Aug Virgin Atlantic
18 Aug Delta
15 Aug Delta

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

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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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