Cheapest return flights from Chicago to San Juan in March from 240€

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

Return flights

26 Mar - 02 Apr Frontier Airlines
06 Mar - 11 Mar Frontier Airlines
19 Mar - 23 Mar Frontier Airlines
02 Mar - 03 Mar Spirit Airlines direct
13 Mar - 16 Mar Avelo Airlines
13 Mar - 17 Mar jetBlue
13 Mar - 18 Mar jetBlue
17 Mar - 17 Mar jetBlue
20 Mar - 26 Mar jetBlue
23 Mar - 26 Mar jetBlue
20 Mar - 27 Mar Avelo Airlines
27 Mar - 03 Apr Avelo Airlines
26 Mar - 30 Apr Frontier Airlines
27 Mar - 02 Apr jetBlue
27 Mar - 30 Apr jetBlue
26 Mar - 30 Apr United direct
26 Mar - 02 Apr United direct
27 Mar - 30 Apr United direct
27 Mar - 03 Apr United direct
27 Mar - 02 Apr United direct

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

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