Cheapest return flights from Chicago to San Juan in March from 155€

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

Return flights

02 Mar - 05 Mar Frontier Airlines
05 Mar - 11 Mar Frontier Airlines
01 Mar - 06 Mar Frontier Airlines
02 Mar - 08 Mar Frontier Airlines
06 Mar - 12 Mar Frontier Airlines
10 Mar - 17 Mar Frontier Airlines
16 Mar - 19 Mar Frontier Airlines
08 Mar - 15 Mar Frontier Airlines
07 Mar - 14 Mar Frontier Airlines
06 Mar - 15 Mar Frontier Airlines
29 Mar - 02 Apr Frontier Airlines
28 Mar - 02 Apr Frontier Airlines
30 Mar - 04 Apr Frontier Airlines
28 Mar - 04 Apr Frontier Airlines
31 Mar - 04 Apr Southwest Airlines
27 Mar - 04 Apr 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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