Find a great deal and save up to 10% by booking at least 20 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Jose to Rockford within the next two weeks, with the cheapest ticket starting at $137.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, April can be a great choice for travel to Rockford. Flights to Rockford from San Jose in April are about $135 on average during April, but can be found for as low as $33.