AirHint found the following cheapest return flights from Rockford (RFD) to San Juan (SJU) in October 2025 (see full year).
Return flights
| 27 Oct - 03 Nov | Allegiant Air | ||
| 24 Oct - 26 Oct | Allegiant Air |
Also check the deals for one-way flights from Rockford to San Juan in October.
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