London to Chicago Flights on Aer Lingus from £183.21*

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Book London to Chicago flight deals*

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Flights from London to Chicago

The largest city in the mid-west, Chicago offers amazing architectural beauty, incredible museums and some of the best food in the US (including deep pan pizza). The windy city has an amazing atmosphere and is a great location for families, couples, backpackers, and business.

Why fly London to Chicago with Aer Lingus?

You’ll love flying from London to Chicago via Dublin with Aer Lingus for a smoother, more relaxed journey. Enjoy easy connections, US preclearance in Dublin, and warm Irish hospitality all the way to the Windy City.

How long is the flight from London to Chicago?

Flight time is usually around 8-9 hours, it’s approximately 3,945 miles (6,348 km) to Chicago from London. But with our excellent on flight entertainment you can sit back and relax, plus with pre-clearance in Dublin you can land in Chicago like a local, with no need to go through customs.

Things to do and places to see in Chicago

Chicago is a unique city in the United States. It's the largest city in Illinois and the third largest in the United States. Located on the shores of Lake Michigan, Chicago has a lot to offer. While visiting don't forget to visit Millennium Park and enjoy public art installations, the gorgeous surrounding architecture or events and concerts. If you visit during winter, take a spin around the skating rink. Other attractions worth visiting are:

Lincoln Park Zoo: Lincoln Park Zoo is home to a wide range of animals, including big cats, polar bears, penguins, gorillas, reptiles, monkeys and more totalling about 1,100 animals. Admission is free and it is located just minutes from downtown Chicago at Lake Shore Drive. There is parking available nearby. The ZOO is open every day and definitely worth a stroll around, especially if you are travelling with kids!

Chicago Architecture River Cruise: Chicago's tall buildings are well known to most and there is nothing like seeing it from a leisurely cruise on the river. The 75 minute architecture boat tour will show you over 40 Chicago landmarks. Sit back and enjoy the magnificent views that Chicago has to offer. Adults go for $40 and children for $20.

360 Chicago Observation Deck: Tower above the Windy City's world-famous skyline with admission to 360 Chicago. 94 floors high, the observation deck is one of the tallest buildings in America. This is an amazing experience! Take a super-fast lift to the top of the tower and admire Chicago from above. Upgrade your ticket to include TILT and enjoy a downward-facing ride from 1,030 feet. Standard tickets are $21, make sure you book in advance.

How many days do you need in Chicago? Many people recommend around 4 days in Chicago, but it may depend on what type of trip you are looking for. Many culture and architect buffs like to spend bit longer as the city has some unique museums (including; Art Institute of Chicago, Museum of Science and Industry, Field Museum of Natural History) and some incredible buildings (including; Willis Tower, Aon Centre, Franklin Centre). You can even go on an architectural cruise to see them from a different perspective. An absolute must is to head to Millennium Park and take a photo with the Bean.

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Book London to Chicago flight deals*

Book London to Chicago flight deals*
From
To
Fare Type
Dates
Price
London (LHR)Chicago (ORD)Each way
/
Economy
13 Mar 2026 - 27 Mar 2026

From

£186.00

Seen: 12 hrs ago

London (LHR)Chicago (ORD)Each way
/
Economy
15 Mar 2026 - 20 Mar 2026

From

£189.19

Seen: 16 hrs ago

* Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.