Cheapest return flights from Chicago to Lisbon in April from $499

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

Return flights

26 Apr - 06 May British Airways
15 Apr - 21 Apr Iberia
12 Apr - 21 Apr Iberia
24 Apr - 06 May TAP direct
26 Apr - 06 May TAP direct
07 Apr - 13 Apr KLM
08 Apr - 13 Apr KLM
22 Apr - 29 Apr Finnair
15 Apr - 20 Apr Iberia
17 Apr - 22 Apr Iberia
16 Apr - 21 Apr Iberia
09 Apr - 21 Apr Delta
26 Apr - 02 May KLM
10 Apr - 15 Apr Delta
22 Apr - 04 May Iberia
25 Apr - 10 May Delta
18 Apr - 02 May Iberia
24 Apr - 04 May Finnair
26 Apr - 02 May TAP direct
18 Apr - 02 May TAP direct

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

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