฿21,970 Cheap Flights from London (LHR) to Chicago (ORD)

View ฿21,970 flight on Mon, 8 Sep 2025Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Chicago O'Hare International Airport (ORD)

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Cheap Flights from London (LHR) to Chicago (ORD)

Prices were available within the past 7 days and start at ฿21,970 for one-way flights and ฿17,760 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Fri, 5 Sep - Sun, 21 Sep
LHR
London
ORD
Chicago
฿17,760 Return, found 4 days ago
฿17,760
Return
found 4 days ago
Select TAP Portugal flight, departing Fri, 5 Sep from London to Chicago, returning Sun, 21 Sep, priced at ฿17,760 found 4 days ago
Icelandair
Fri, 5 Sep - Sun, 21 Sep
LHR
London
ORD
Chicago
฿18,695 Return, found 4 days ago
฿18,695
Return
found 4 days ago
Select Icelandair flight, departing Fri, 5 Sep from London to Chicago, returning Sun, 21 Sep, priced at ฿18,695 found 4 days ago
Delta
Fri, 5 Sep - Sun, 21 Sep
LHR
London
ORD
Chicago
฿19,850 Return, found 4 days ago
฿19,850
Return
found 4 days ago
Select Delta flight, departing Fri, 5 Sep from London to Chicago, returning Sun, 21 Sep, priced at ฿19,850 found 4 days ago
American Airlines
Sat, 6 Sep - Sat, 13 Sep
LHR
London
ORD
Chicago
฿20,320 Return, found 5 hours ago
฿20,320
Return
found 5 hours ago
Select American Airlines flight, departing Sat, 6 Sep from London to Chicago, returning Sat, 13 Sep, priced at ฿20,320 found 5 hours ago
American Airlines
Sat, 6 Sep - Sat, 20 Sep
LHR
London
ORD
Chicago
฿20,455 Return, found 4 days ago
฿20,455
Return
found 4 days ago
Select American Airlines flight, departing Sat, 6 Sep from London to Chicago, returning Sat, 20 Sep, priced at ฿20,455 found 4 days ago
Icelandair
Sat, 6 Sep - Sat, 13 Sep
LHR
London
ORD
Chicago
฿20,495 Return, found 5 hours ago
฿20,495
Return
found 5 hours ago
Select Icelandair flight, departing Sat, 6 Sep from London to Chicago, returning Sat, 13 Sep, priced at ฿20,495 found 5 hours ago
Delta
Sat, 6 Sep - Sat, 13 Sep
LHR
London
ORD
Chicago
฿20,505 Return, found 5 hours ago
฿20,505
Return
found 5 hours ago
Select Delta flight, departing Sat, 6 Sep from London to Chicago, returning Sat, 13 Sep, priced at ฿20,505 found 5 hours ago
Virgin Atlantic
Sat, 6 Sep - Sat, 20 Sep
LHR
London
ORD
Chicago
฿20,640 Return, found 4 days ago
฿20,640
Return
found 4 days ago
Select Virgin Atlantic flight, departing Sat, 6 Sep from London to Chicago, returning Sat, 20 Sep, priced at ฿20,640 found 4 days ago
Iberia
Sat, 6 Sep - Sat, 13 Sep
LHR
London
ORD
Chicago
฿21,460 Return, found 5 hours ago
฿21,460
Return
found 5 hours ago
Select Iberia flight, departing Sat, 6 Sep from London to Chicago, returning Sat, 13 Sep, priced at ฿21,460 found 5 hours ago
British Airways
Sat, 6 Sep - Sat, 13 Sep
LHR
London
ORD
Chicago
฿21,460 Return, found 5 hours ago
฿21,460
Return
found 5 hours ago
Select British Airways flight, departing Sat, 6 Sep from London to Chicago, returning Sat, 13 Sep, priced at ฿21,460 found 5 hours ago

Find the cheapest month to fly from London (LHR) to Chicago (ORD)

September is typically the cheapest month to fly

From ฿15,617 - ฿25,253 per traveller.

Graph displaying average flight prices per month

Flight from London to Chicago route information
Origin airport
Heathrow
Destination airport
O'Hare Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Return price
฿17,760
Distance
6307 km
Average flight time
2 hours 47 mins

Perfect flights from London to Chicago

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from London to Chicago. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of Chicago, surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Heathrow to O'Hare Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿21,970 and roundtrip prices from ฿17,760. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at O'Hare Intl. and explore Chicago and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your LHR to ORD travel arrangements today and embark on the journey of a lifetime in Chicago.

Frequently asked questions

How much is a flight from Heathrow Airport (LHR) to O'Hare Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip journey from Heathrow Airport to O'Hare Airport was ฿17,760. Fares this good don't hang around, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from London Heathrow to ORD?
The majority of flights can be conveniently cancelled online, but whether you incur a fee all comes down to your airline. If you do have to cancel your break, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Heathrow Airport (LHR) to ORD that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Heathrow Airport (LHR) to O'Hare Intl. Airport (ORD) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from London Heathrow to O'Hare Intl. Airport (ORD)?
With around 6,400 kilometres separating Hounslow and Chicago, your flight will be a long one. Pack wisely to make your journey more comfortable. Simple things like warm clothes and a quality travel pillow can make a big difference.
Which airlines fly direct from Heathrow Airport to O'Hare Intl. Airport (ORD)?
Many travellers choose to fly with United Airlines (UA) from Heathrow Airport (LHR) to O'Hare Airport. It offers 91 monthly flights, so you can easily find a flight time that's right for you. Another carrier operating on this route is British Airways (BA). You'll have 60 flights every month to choose from.
Are Heathrow Airport to ORD flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Heathrow Airport to O'Hare Intl. Airport (ORD) last minute could save you some cash. However, it could end up costing a great deal more! If you'd rather avoid the risk, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains as far ahead as 12 months in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia.

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