Cheapest one-way flights from Chicago to Lisbon in May from 290€

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

04 May Spirit Airlines
14 May Spirit Airlines
12 May Spirit Airlines
07 May Spirit Airlines
01 May Spirit Airlines
11 May Air Canada
04 May TAP direct
11 May TAP direct
14 May TAP direct
26 May Air Canada

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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