We help you find cheap flights by searching thousands of routes, across hundreds of airlines, so that you can easily compare the prices. Icelandair is normally the cheapest airline for flying from Chicago O'hare International Airport to London Gatwick. But we recommend that you check all possible airlines, to be sure of getting a great deal.
Bargain-hunters should check when public holidays are in London, as prices are likely to be higher. Icelandair are the most popular airlines to fly with, and Icelandair is normally the cheapest.
You can also find cheap accommodation in London with Netflights, for either your whole trip or just one night's stay near the airport.
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.
