$355+ Cheap flights from Chicago (CHI) to London (LON)

Departing from Chicago to London will take you 7h 45m. There are 3939 mi between Chicago and London. This flight may include one or multiple stops.

JetBlue, at $51, was found to be the cheapest airline from Chicago to London.Alternate airlines to your destination round-trip include SWISS and Scandinavian Airlines. JetBlue is 93% cheaper than the average price of flights available within the next 90 days to this destination.

$135 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on Scandinavian Airlines and Icelandair, with prices starting from $207 and $219, respectively.

The most popular route from Chicago to London is Chicago O'Hare Intl - London Heathrow. You may also consider Chicago O'Hare Intl - London Gatwick or Chicago O'Hare Intl - London City.

Before booking your flight to London from Chicago, check out the most reliable airlines to get you to your destination on time: Aer Lingus (73%), American Airlines (66%), Alaska Airlines( 66%).

Looking at all options, your cheapest flight can be booked for $334. While the most popular route (Chicago O'Hare Intl - London Heathrow) can be booked for $454 on average, our data indicates $2,466 when flying from Chicago to London.

Of the flights from Chicago to London that have layovers, most of them stop in Reykjavik. Lisbon sees the next most layovers on Chicago to London flights.

Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool are the most popular attractions in Reykjavik if you're in need of something to do during your layover. Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool are located about 23.2 mi, 23.3 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl. Travelers can book a car rental at Reykjavik Keflavik Intl for about $52 per day to make their sightseeing more efficient.

Most Lisbon visitors opt to spend their time at Chiado, Praça do Marquês de Pombal, and Londres. Chiado, Praça do Marquês de Pombal and Londres are located about 4.5 mi, 3.6 mi, and 2.3 mi, respectively from Lisbon Humberto Delgado if you are interested in checking them out. Those on a layover in Lisbon in need of a rental car can book one at Lisbon Humberto Delgado for about $18.

Chicago to London flights have a layover in Dublin least often.

Yes. In addition to deals on Chicago to London flights, Cheapflights offers vacation 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 Chicago to London.

Yes. Cheapflights offers flight deals from Chicago to London 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, June is the cheapest month in which you can book a flight from Chicago to London (average of $375). Flying from Chicago to London in July is currently the most expensive (average of $607). 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.