Cheapest one-way flights from Chicago to Lisbon in April from 223€

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

One-Way flights

25 Apr Spirit Airlines
29 Apr Frontier Airlines
26 Apr Frontier Airlines
22 Apr Frontier Airlines
14 Apr Icelandair
03 Apr Icelandair
15 Apr Icelandair
04 Apr Icelandair
01 Apr Frontier Airlines
16 Apr SWISS

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

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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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