Cheapest return flights from Chicago to Lisbon in August from 411€

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

Return flights

18 Aug - 25 Aug Air Canada
19 Aug - 26 Aug Air Canada
17 Aug - 24 Aug KLM
20 Aug - 27 Aug Air Canada
21 Aug - 28 Aug Finnair
26 Aug - 02 Sep Scandinavian Airlines
16 Aug - 23 Aug Aer Lingus
25 Aug - 01 Sep Air Canada
14 Aug - 21 Aug Finnair
29 Aug - 05 Sep Turkish Airlines
27 Aug - 03 Sep Turkish Airlines
24 Aug - 31 Aug SWISS
15 Aug - 22 Aug Finnair
28 Aug - 04 Sep Air Canada
23 Aug - 30 Aug Finnair
30 Aug - 06 Sep Finnair
26 Aug - 02 Sep TAP direct
30 Aug - 06 Sep TAP direct
27 Aug - 03 Sep TAP direct
28 Aug - 04 Sep TAP direct

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

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