$304 Find Cheap Flights from Chicago to London Heathrow Airport - Compare and Save

There are a couple of places in the airport where you can enjoy currency exchange. Look for currency exchange centers in Terminals 2, 3, 4, and 5. There is also a branch of Barclays, Lloyds, and HSBC banks inside the airport terminals.

If you have a late arrival or your plane is delayed, you'll be happy to know that there is a hotel at the airport. The Aerotel T3 London Heathrow is located in Terminal 3. You can rent a room by the hour or the day.

At Chicago Midway Airport (MDW) there is a yoga room where you can meditate and relax. If you fly into the Chicago O'Hare Airport (ORD), there are a few spas where you can get a chair massage or another spa or beauty service.

The public transportation system in London is very advanced. You'll have the option of taking the tube (subway) or train (light rail) into the city. The subway station is located in Terminal 4 and it will take about 50min to get to the heart of the city. There is also an express train that goes to many areas in the city including London's Westminster borough. The Heathrow Express takes about 20min to get to the London Picadilly Station. The train picks up passengers at Terminals 2, 3, and 5.

In the last 5 days, the lowest price for a flight from Chicago to London Heathrow Airport was $303 for a one-way ticket and $697 for a round-trip.

A passport is required to fly from Chicago to London Heathrow Airport.

On your way to London Heathrow Airport, you’ll fly out from one of these Chicago airports: Chicago Midway or Chicago O'Hare Intl. You’ll be landing at London Heathrow.

Iberia, British Airways, Finnair, and American Airlines offer inflight Wi-Fi service on the Chicago to London Heathrow Airport flight route.

The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the Chicago to London Heathrow Airport flight route.

SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Chicago and London Heathrow Airport, with SkyTeam being the most commonly used for this route.

There are nonstop flights from Chicago to London Heathrow Airport on a daily basis.

The two airlines most popular with KAYAK users for flights from Chicago to London are Finnair and United Airlines. With an average price for the route of $832 and an overall rating of 7.6, Finnair is the most popular choice. United Airlines is also a great choice for the route, with an average price of $903 and an overall rating of 7.4.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to London Heathrow Airport.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Chicago with another airline.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.