Cheapest return flights from Chicago to Lisbon in July from $781

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

AirHint found the following cheapest return flights from Chicago (MDW) to Lisbon (LIS) in July 2025 (see full year).

Return flights

03 Jul - 10 Jul Delta
15 Jul - 22 Jul Porter Airlines (Canada) Ltd
26 Jul - 25 Aug Delta
03 Jul - 14 Jul Porter Airlines (Canada) Ltd
10 Jul - 16 Jul Delta
04 Jul - 14 Jul Porter Airlines (Canada) Ltd
29 Jul - 04 Aug Delta
03 Jul - 22 Jul Porter Airlines (Canada) Ltd
22 Jul - 27 Jul Air Transat
01 Jul - 08 Jul Porter Airlines (Canada) Ltd
11 Jul - 18 Jul Delta
21 Jul - 05 Aug Porter Airlines (Canada) Ltd
21 Jul - 04 Aug Porter Airlines (Canada) Ltd
21 Jul - 26 Jul Delta

Also check the deals for one-way flights from Chicago to Lisbon in July.

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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