Cheapest return flights from Chicago to Lisbon in July from 826€

AirHint found the following cheapest return flights from Chicago (MDW) to Lisbon (LIS) in July 2026 (see full year).

Return flights

28 Jul - 04 Aug Frontier Airlines
07 Jul - 14 Jul Porter Airlines (Canada) Ltd
21 Jul - 28 Jul Porter Airlines (Canada) Ltd
20 Jul - 27 Jul Porter Airlines (Canada) Ltd
06 Jul - 13 Jul Porter Airlines (Canada) Ltd
17 Jul - 27 Jul Porter Airlines (Canada) Ltd
14 Jul - 21 Jul Frontier Airlines
20 Jul - 06 Aug Porter Airlines (Canada) Ltd
15 Jul - 24 Jul Frontier Airlines
26 Jul - 01 Aug Porter Airlines (Canada) Ltd
13 Jul - 20 Jul Porter Airlines (Canada) Ltd
10 Jul - 17 Jul Porter Airlines (Canada) Ltd
19 Jul - 26 Jul Porter Airlines (Canada) Ltd
24 Jul - 01 Aug Porter Airlines (Canada) Ltd
27 Jul - 03 Aug Porter Airlines (Canada) Ltd
26 Jul - 02 Aug Porter Airlines (Canada) Ltd
30 Jul - 06 Aug Porter Airlines (Canada) Ltd
30 Jul - 09 Aug Porter Airlines (Canada) Ltd
24 Jul - 02 Aug Porter Airlines (Canada) Ltd
31 Jul - 07 Aug Porter Airlines (Canada) Ltd

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

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