We've scanned every flight from Helsinki 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. 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 14 hrs 30 mins to fly 7125 km to Chicago O'hare International Airport.
There are about 46 flights to or via Chicago every week, so you have plenty of options. Keep your eye out for flights with American Airlines, British Airways and Delta Air Lines – these are the most popular airlines for flying to .
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.
