Cheapest return flights from Chicago to Lisbon in March from $525

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

Return flights

08 Mar - 19 Mar Delta
23 Mar - 31 Mar Aer Lingus
08 Mar - 15 Mar KLM
11 Mar - 17 Mar KLM
31 Mar - 08 Apr Delta
31 Mar - 07 Apr KLM
29 Mar - 07 Apr Aer Lingus
18 Mar - 30 Mar KLM
04 Mar - 14 Mar Delta
23 Mar - 30 Mar Air France
10 Mar - 24 Mar Frontier Airlines
18 Mar - 25 Mar Spirit Airlines
11 Mar - 25 Mar Frontier Airlines
24 Mar - 03 Apr KLM
30 Mar - 07 Apr United
23 Mar - 06 Apr Frontier Airlines
30 Mar - 05 Apr Frontier Airlines
25 Mar - 01 Apr Delta
25 Mar - 02 Apr Frontier Airlines
28 Mar - 05 Apr Spirit Airlines

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

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