With Netflights, it's easy to find a great deal on flights from Chicago O'hare International Airport to London Heathrow. Normally, the cheapest airline to fly with is British Airways so look out for their flights in your search results – but be sure to weigh up all your options, to see which flight is best for you.
Bargain-hunters should check when public holidays are in London, as prices are likely to be higher. Air Canada, Alaska Airlines & Finnair are the most popular airlines to fly with, and British Airways is normally the cheapest.
About 45 direct and indirect flights go from Chicago O'hare International Airport to London Heathrow every week. But the prices fluctuate throughout the year. If you want to go during peak season, it's best to book early. Or you could try to find a last-minute deal.
Did you know you can compare accommodation prices too? If you need somewhere to stay in London, take a look at our hotel options to get an idea of prices.