Cheapest return flights from Chicago to Lisbon in May from $888
AirHint found the following cheapest return flights from Chicago (MDW) to Lisbon (LIS)
in May 2026 (see full year ).
Return flights
21 May
- 27 May
Porter Airlines (Canada) Ltd
$ 888
11 May
- 21 May
Porter Airlines (Canada) Ltd
$ 923
04 May
- 11 May
Porter Airlines (Canada) Ltd
$ 939
06 May
- 10 May
WestJet
$ 988
21 May
- 29 May
Porter Airlines (Canada) Ltd
$ 1072
21 May
- 28 May
Porter Airlines (Canada) Ltd
$ 1086
08 May
- 15 May
Delta
$ 1094
07 May
- 10 May
Delta
$ 1104
01 May
- 10 May
Porter Airlines (Canada) Ltd
$ 1120
17 May
- 07 Jun
Porter Airlines (Canada) Ltd
$ 1140
31 May
- 25 Jun
Porter Airlines (Canada) Ltd
$ 1185
08 May
- 10 May
WestJet
$ 1317
Also check the deals for one-way flights from Chicago to Lisbon in May .
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