Cheapest one-way flights from Chicago to Lisbon in May from $382

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

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

One-Way flights

21 May Porter Airlines (Canada) Ltd
17 May Porter Airlines (Canada) Ltd
18 May Porter Airlines (Canada) Ltd
15 May Porter Airlines (Canada) Ltd
04 May Delta
19 May Frontier Airlines
16 May Porter Airlines (Canada) Ltd
05 May Porter Airlines (Canada) Ltd

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

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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