Cheap flights from London to Chicago from £319

Our cheapest airline available from London to Chicago is United Airlines. Our recent data shows that you can find tickets from as low as £418 on this airline. Additional options worth looking into are Austrian Airlines and SWISS, starting at £419 and £420 round-trip. These flights start at 25% lower than the current average price 3 months from now.

To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at £387. Air Transat flights start at £391 while deals on WestJet start at £395 one-way.

The most popular flight routes from London to Chicago are London Heathrow - Chicago O'Hare Intl, London Gatwick - Chicago O'Hare Intl and London City - Chicago O'Hare Intl.

Before booking your flight to Chicago from London, check out the most reliable airlines to get you to your destination on time: Air Canada (91%), Austrian Airlines (91%), United Airlines( 91%).

While on average a flight from London to Chicago is generally £1,148, our data shows the cheapest flight currently is £439. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £364 for that flight.

London to Chicago flights have a stopover in Reykjavik most of the time. Dublin sees the second most layovers for non-direct flights flying from London to Chicago.

If you're on a stopover in Reykjavik and looking for things to do, consider visiting National Cathedral, Hallgrímskirkja, or Harpa. National Cathedral, Hallgrímskirkja, and Harpa are located about 23.0 mi, 23.2 mi, and 23.3 mi, respectively from Reykjavik Keflavik Intl. Those on a stopover in Reykjavik in need of a car hire can book one at Reykjavik Keflavik Intl for about £37.

The majority of Dublin visitors spend their time at Bord Gáis Energy Theatre, Royal Dublin Society, and Button Factory. Bord Gáis Energy Theatre, Royal Dublin Society and Button Factory are located about 5.7 mi, 6.9 mi, and 5.7 mi, respectively from Dublin if you are interested in checking them out. Travellers in need of a car in Dublin can hire one for about £18 per day.

London to Chicago flights have a stopover in Copenhagen least often.

Yes. In addition to deals on London to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Chicago.

Yes. Cheapflights offers flight deals from London to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Currently, January is the cheapest month in which you can book a flight from London to Chicago (average of £595). Flying from London to Chicago in July is currently the most expensive (average of £843). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.