Cheapest return flights from Chicago to Lisbon in July from $888

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 - 18 Jul Porter Airlines (Canada) Ltd
03 Jul - 10 Jul Porter Airlines (Canada) Ltd
14 Jul - 21 Jul Porter Airlines (Canada) Ltd
04 Jul - 10 Jul Porter Airlines (Canada) Ltd
14 Jul - 25 Jul Porter Airlines (Canada) Ltd
24 Jul - 01 Aug WestJet
01 Jul - 08 Jul Porter Airlines (Canada) Ltd
04 Jul - 11 Jul Porter Airlines (Canada) Ltd
03 Jul - 01 Aug Porter Airlines (Canada) Ltd
01 Jul - 30 Jul Porter Airlines (Canada) Ltd
21 Jul - 28 Jul Porter Airlines (Canada) Ltd
04 Jul - 07 Jul Porter Airlines (Canada) Ltd

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

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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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