Searching for flights to Illinois? Well, October is normally the cheapest month to fly, while September is when prices are at their highest. There are 11 airports to choose from in the area, but look out for flights to Chicago O'hare International Airport (ORD) – flights landing here are usually the cheapest. But it's also worth thinking about where you want to stay, and how much your transfer from the airport would be. Sometimes, booking a more expensive flight might actually save you money in the long run.
Searching by state instead of by city allows you to see a wider range of flights, which increases your chances of getting a good deal. 19 airlines operate flights in and out of Illinois. The most popular ones are: KLM, Air France & United Airlines. Price wise, United Airlines has the cheapest flights on average.
To make sure you get the best deal, we've already scanned 103,531 flights across the globe today. For your trip, you've got loads of choice – there are 2,734 flights every week to Illinois. So what are you waiting for? Use this page to compare your options and book your cheap flights today.