Cheapest one-way flights from Chicago to Lisbon in May from $440

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

One-Way flights

19 May Porter Airlines (Canada) Ltd
14 May Porter Airlines (Canada) Ltd
29 May Porter Airlines (Canada) Ltd
25 May Porter Airlines (Canada) Ltd
07 May Porter Airlines (Canada) Ltd
03 May Porter Airlines (Canada) Ltd
08 May Porter Airlines (Canada) Ltd
12 May Delta
23 May Delta

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

Powered by

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon

Feel free to contact us with any feedback or request another flight research.