Cheapest return ORD–LIS flights, April

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

Return flights

22 Apr - 29 Apr Delta
26 Apr - 06 May Delta
19 Apr - 29 Apr Delta
19 Apr - 29 Apr TAP direct
24 Apr - 01 May Iberia
22 Apr - 03 May Delta
24 Apr - 04 May KLM
24 Apr - 02 May Iberia
25 Apr - 02 May Iberia
30 Apr - 09 May Air France
24 Apr - 03 May Delta
25 Apr - 03 May Delta
25 Apr - 01 May KLM
22 Apr - 29 Apr TAP direct

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

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