Cheapest one-way flights from Chicago to Lisbon in May from $362

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

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

One-Way flights

12 May Spirit Airlines
18 May Spirit Airlines
16 May Frontier Airlines
09 May Frontier Airlines
11 May Spirit Airlines
15 May SWISS
11 May TAP direct
26 May Scandinavian Airlines
24 May Air Canada
30 May jetBlue

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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