Cheapest return flights from Chicago to San Juan in March from 362€

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

Return flights

17 Mar - 17 Mar Southwest Airlines
13 Mar - 17 Mar Southwest Airlines
13 Mar - 18 Mar Southwest Airlines
12 Mar - 15 Mar Southwest Airlines
13 Mar - 16 Mar Southwest Airlines
22 Mar - 28 Mar Southwest Airlines
23 Mar - 26 Mar Southwest Airlines
28 Mar - 02 Apr Porter Airlines (Canada) Ltd
20 Mar - 26 Mar Frontier Airlines
19 Mar - 26 Mar Frontier Airlines
29 Mar - 05 Apr Porter Airlines (Canada) Ltd
20 Mar - 29 Mar Frontier Airlines

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

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