Cheapest return flights from Chicago to Lisbon in March from $505

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

Return flights

04 Mar - 11 Mar Delta
17 Mar - 24 Mar Frontier Airlines
31 Mar - 07 Apr Delta
16 Mar - 23 Mar Frontier Airlines
25 Mar - 01 Apr Delta
11 Mar - 22 Mar Frontier Airlines
17 Mar - 23 Mar Frontier Airlines
25 Mar - 02 Apr Frontier Airlines
26 Mar - 05 Apr Frontier Airlines
29 Mar - 06 Apr Delta
19 Mar - 30 Mar Frontier Airlines
26 Mar - 02 Apr Frontier Airlines
26 Mar - 04 Apr Frontier Airlines
17 Mar - 22 Mar Frontier Airlines
29 Mar - 05 Apr Frontier Airlines
26 Mar - 03 Apr Frontier Airlines
28 Mar - 02 Apr Frontier Airlines
19 Mar - 25 Mar Frontier Airlines
04 Mar - 08 Mar Delta
05 Mar - 09 Mar Delta

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

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