Cheapest return flights from Chicago to Lisbon in April from 525€

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

Return flights

15 Apr - 22 Apr TAP direct
12 Apr - 18 Apr TAP direct
22 Apr - 29 Apr Lufthansa
14 Apr - 20 Apr Turkish Airlines
15 Apr - 20 Apr KLM
19 Apr - 26 Apr Lufthansa
27 Apr - 02 May Turkish Airlines
24 Apr - 04 May KLM
29 Apr - 03 May Delta
13 Apr - 19 Apr Aer Lingus
13 Apr - 26 Apr Delta
19 Apr - 25 Apr KLM
16 Apr - 26 Apr Aer Lingus
25 Apr - 02 May TAP direct
26 Apr - 01 May Icelandair
24 Apr - 01 May TAP direct
23 Apr - 03 May United
26 Apr - 01 May TAP direct

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

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