Flights from St. Pete–Clearwater International Airport to Illinois

Flight deals from St. Pete–Clearwater International Airport to Illinois

Looking for a cheap last-minute deal or the best return flight from St. Pete–Clearwater International Airport to Illinois? If you want to travel next month, return fares start from R 1,921. Find the lowest prices on one-way and return tickets right here.

Flying from St. Pete–Clearwater International Airport to Illinois

Arm yourself with these facts on the fly.
Cheapest flight foundR 749
Cheapest month to flySeptember
Average flight time2 hrs, 35 mins
Average flights per week17
Most popular airlineAllegiant Air

Frequently asked questions

We looked at all of the upcoming return flights from St. Pete–Clearwater International Airport to Illinois we could find over the next 12 months. It looks like R 1,508 is the best price. This is good, compared to the average Illinois ticket price of R 4,169.
The cheapest month to fly from St. Pete–Clearwater International Airport to Chicago Rockford Airport is currently August.
The cheapest month to fly from St. Pete–Clearwater International Airport to Central Illinois Regional Airport is currently August.
The cheapest month to fly from St. Pete–Clearwater International Airport to Springfield Airport is currently June.
And the cheapest month to fly from St. Pete–Clearwater International Airport to Greater Peoria Airport is usually October.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from St. Pete–Clearwater International Airport to Illinois on Monday, 17 August 2026.
If you're flying from St. Pete–Clearwater International, the cheapest city in Illinois to fly into is Bloomington. The cheapest airport serving Bloomington at the moment is Central Illinois Regional.
The average flight time between St. Pete–Clearwater International Airport and Illinois is 2 hours and 35 minutes.