Cheapest return flights from Chicago to Lisbon in April from $506

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

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

Return flights

02 Apr - 09 Apr KLM
01 Apr - 08 Apr KLM
07 Apr - 14 Apr Turkish Airlines
29 Apr - 07 May Turkish Airlines
01 Apr - 14 Apr Turkish Airlines
06 Apr - 16 Apr TAP direct
30 Apr - 07 May Turkish Airlines
16 Apr - 25 Apr TAP direct
16 Apr - 27 Apr TAP direct
27 Apr - 09 May Turkish Airlines
28 Apr - 05 May Turkish Airlines
07 Apr - 13 Apr Turkish Airlines
27 Apr - 04 May Turkish Airlines
29 Apr - 04 May Turkish Airlines
12 Apr - 17 Apr Turkish Airlines
23 Apr - 04 May Turkish Airlines
13 Apr - 20 Apr TAP direct
30 Apr - 11 May Turkish Airlines
23 Apr - 02 May Turkish Airlines
26 Apr - 03 May TAP direct

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

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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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