We help you find cheap flights by searching thousands of routes, across hundreds of airlines, so that you can easily compare the prices. But we recommend that you check all possible airlines, to be sure of getting a great deal.
Bargain-hunters should check when public holidays are in Chicago, as prices are likely to be higher.
At the other end of the spectrum, flights in high season are very expensive. But you might be able to get a good last-minute deal. Whenever you fly, you'll have plenty of choice.
Did you know you can compare accommodation prices too? If you need somewhere to stay in Chicago, take a look at our hotel options to get an idea of prices.