Your flight from Newquay to Chicago should take about 11 hrs 50 mins. We've gone through all ten of the weekly flights to or via Chicago, operated by two airlines, to help you compare flight prices and times. At the moment, the cheapest flight is £840.
Or, if you're fairly flexible on dates, try to get a last minute-deal by regularly checking the Netflights website.
Chicago actually has one airports – but Chicago O'hare International Airport is normally the cheapest one to fly into. If you're not sure who to fly with from Newquay, you might like to know that Aer Lingus is the most popular airline for this route.
But if you can't find one which is right for you, try looking at flights to other cities in the USA to check out some other options.