We've scanned every flight from Cardiff to Chicago to find the best deals. If you want a cheap flight, it's best to be as flexible as you can on dates. At the moment, the cheapest flight is on 26 / Aug / 2025. If that day's no good for you, try searching by month to see some alternative dates.
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 16 hrs 30 mins to fly 6174 km to Chicago O'hare International Airport.
ten flights go to or via Chicago every week. Cheap flights Currently, the cheapest price available is £645. The most popular airline is Virgin Atlantic but do spend some time checking all your options – they aren’t necessarily the cheapest airline to book with.
You can expect accommodation prices to be higher at this time of year too. Last-minute deals do crop up, but it's best to book everything in advance to avoid disappointment.