If you want a cheap flight from Glasgow to Chicago, you've got eight airlines to choose from. You can use the search box to filter your preferences, but we've found that the cheapest day to fly is 20 / Aug / 2025.
Chicago O'hare International Airport is just one of the airports in Chicago. If you're not set on a specific airport, try changing your search from Chicago O'hare International Airport to Chicago to see a broader range of flights – they might be cheaper. It usually takes about 11 hrs 35 mins to fly 5904 km to Chicago O'hare International Airport.
There are about 154 flights to or via Chicago every week, so you have plenty of options. Keep your eye out for flights with Finnair, Aer Lingus and Iberia Airlines – these are the most popular airlines for flying to .
During this peak season, hotel and holiday prices often increase too, so it's best to book early. Or you could keep your fingers crossed and hold out for a last-minute deal.
