Cheapest return flights from Chicago to San Juan in March from 213€

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

Return flights

01 Mar - 07 Mar Frontier Airlines
01 Mar - 08 Mar Frontier Airlines
15 Mar - 20 Mar Southwest Airlines
12 Mar - 19 Mar Frontier Airlines
07 Mar - 14 Mar Southwest Airlines
06 Mar - 14 Mar Southwest Airlines
07 Mar - 13 Mar Frontier Airlines
12 Mar - 16 Mar Frontier Airlines
14 Mar - 22 Mar Southwest Airlines
07 Mar - 15 Mar Frontier Airlines

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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