AirHint found the following cheapest return flights from Chicago (ORD) to St. Croix Island (STX) in March 2026 (see full year).
Return flights
| 06 Mar - 21 Mar | Spirit Airlines | ||
| 09 Mar - 17 Mar | Spirit Airlines | ||
| 07 Mar - 21 Mar | Spirit Airlines | ||
| 11 Mar - 18 Mar | Delta | ||
| 14 Mar - 21 Mar | Spirit Airlines |
Also check the deals for one-way flights from Chicago to St. Croix Island in March.
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