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

View AU$705 flight on Tue, 6 Oct 2026Opens 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 for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Thu, 3 Sept - Sun, 6 Sept
LHR
London
ORD
Chicago
AU$940 Return, found 6 days ago
AU$940
Return
found 6 days ago
Select TAP Portugal flight, departing Thu, 3 Sept from London to Chicago, returning Sun, 6 Sept, priced at AU$940 found 6 days ago
Scandinavian Airlines
Fri, 25 Sept - Fri, 2 Oct
LHR
London
ORD
Chicago
AU$1,067 Return, found 23 hours ago
AU$1,067
Return
found 23 hours ago
Select Scandinavian Airlines flight, departing Fri, 25 Sept from London to Chicago, returning Fri, 2 Oct, priced at AU$1,067 found 23 hours ago
Icelandair
Fri, 20 Nov - Tue, 24 Nov
LHR
London
ORD
Chicago
AU$1,125 Return, found 3 days ago
AU$1,125
Return
found 3 days ago
Select Icelandair flight, departing Fri, 20 Nov from London to Chicago, returning Tue, 24 Nov, priced at AU$1,125 found 3 days ago
Swiss International Air Lines
Mon, 7 Sept - Mon, 21 Sept
LHR
London
ORD
Chicago
AU$1,138 Return, found 17 hours ago
AU$1,138
Return
found 17 hours ago
Select Swiss International Air Lines flight, departing Mon, 7 Sept from London to Chicago, returning Mon, 21 Sept, priced at AU$1,138 found 17 hours ago
American Airlines
Fri, 20 Nov - Tue, 24 Nov
LHR
London
ORD
Chicago
AU$1,144 Return, found 3 days ago
AU$1,144
Return
found 3 days ago
Select American Airlines flight, departing Fri, 20 Nov from London to Chicago, returning Tue, 24 Nov, priced at AU$1,144 found 3 days ago
Lufthansa
Mon, 7 Sept - Mon, 21 Sept
LHR
London
ORD
Chicago
AU$1,145 Return, found 17 hours ago
AU$1,145
Return
found 17 hours ago
Select Lufthansa flight, departing Mon, 7 Sept from London to Chicago, returning Mon, 21 Sept, priced at AU$1,145 found 17 hours ago
Austrian Airlines
Mon, 7 Sept - Mon, 21 Sept
LHR
London
ORD
Chicago
AU$1,171 Return, found 17 hours ago
AU$1,171
Return
found 17 hours ago
Select Austrian Airlines flight, departing Mon, 7 Sept from London to Chicago, returning Mon, 21 Sept, priced at AU$1,171 found 17 hours ago
United
Mon, 7 Sept - Mon, 21 Sept
LHR
London
ORD
Chicago
AU$1,182 Return, found 17 hours ago
AU$1,182
Return
found 17 hours ago
Select United flight, departing Mon, 7 Sept from London to Chicago, returning Mon, 21 Sept, priced at AU$1,182 found 17 hours ago
Lufthansa
Mon, 7 Sept - Mon, 21 Sept
LHR
London
ORD
Chicago
AU$1,193 Return, found 17 hours ago
AU$1,193
Return
found 17 hours ago
Select Lufthansa flight, departing Mon, 7 Sept from London to Chicago, returning Mon, 21 Sept, priced at AU$1,193 found 17 hours ago
Virgin Atlantic
Mon, 7 Sept - Mon, 21 Sept
LHR
London
ORD
Chicago
AU$1,200 Return, found 17 hours ago
AU$1,200
Return
found 17 hours ago
Select Virgin Atlantic flight, departing Mon, 7 Sept from London to Chicago, returning Mon, 21 Sept, priced at AU$1,200 found 17 hours ago

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

April is typically the cheapest month to fly

From AU$685 - AU$1,232 per traveller.

Frequently asked questions

How much does a flight from London (LHR-Heathrow) to Chicago, IL (ORD-O'Hare Intl.) cost?
You can find cheap one-way flights from AU$705 and cheap return flights from AU$940 LHR to ORD with Expedia. One-way flights typically cost between AU$834 and AU$7,752 and return flights often range between AU$1,246 and AU$10,290. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when LHR to ORD ticket fares go up or down.
What is the cheapest month to fly from London (LHR) to Chicago, IL (ORD)?
The cheapest months to fly from London (LHR) to Chicago, IL (ORD) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from London (LHR-Heathrow) to Chicago, IL (ORD-O'Hare Intl.)?
There are 3 airlines offering direct flights from London Heathrow (LHR) to Chicago, IL (ORD-O'Hare Intl.). Here are the carriers:
  • British Airways operates 21 direct flights from London Heathrow (LHR) to Chicago, IL (ORD-O'Hare Intl.) every week.
  • American Airlines operates 21 direct flights from London Heathrow (LHR) to Chicago, IL (ORD-O'Hare Intl.) every week.
  • United operates 21 direct flights from London Heathrow (LHR) to Chicago, IL (ORD-O'Hare Intl.) every week.
How do I find cheap flights from London (LHR) to Chicago, IL (ORD)?
To find a cheap flight from London (LHR) to Chicago, IL (ORD), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from London (LHR-Heathrow) to Chicago, IL (ORD-O'Hare Intl.)?
The best airline to fly with from London Heathrow (LHR) to Chicago, IL (ORD-O'Hare Intl.) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, American Airlines typically offers the lowest fares. British Airways offers the most daily flights from London Heathrow (LHR) to Chicago, IL (ORD-O'Hare Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from London (LHR-Heathrow) to Chicago, IL (ORD-O'Hare Intl.)?
The cheapest months to fly from London Heathrow (LHR) to Chicago, IL (ORD) are typically February and September, with average return flights around AU$912. However, the most popular months for this route are August and December, meaning you'll find plenty of flight options during those times. If you're looking for the best balance of price and availability, consider flying in February or September for more affordable fares, or in August or December if having a wide selection of flights is your top priority.
How many flights per day from London (LHR-Heathrow) to Chicago, IL (ORD-O'Hare Intl.)?
You'll find approximately 9 nonstop flights per day from London (LHR-Heathrow) to Chicago, IL (ORD-O'Hare Intl.). For even more choices, look at flights that include layovers, as there are around 208 connecting flights per day. Some common connection points include Dublin (DUB), Pearson Intl. (YYZ), and John F. Kennedy Intl. (JFK).
What is the earliest flight from London (LHR-Heathrow) to Chicago, IL (ORD-O'Hare Intl.)?
The earliest flight from London Heathrow (LHR) to Chicago, IL (ORD-O'Hare Intl.) typically departs around 6:00 AM. This seasonal service is active in May and June, and is operated by airlines such as Air Baltic, Helvetic Airways, and United. An early departure like this allows you to maximize your time upon arrival in Chicago. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from London (LHR-Heathrow) to Chicago, IL (ORD-O'Hare Intl.)?
You'll find the most flights from London Heathrow (LHR) to Chicago, IL (ORD-O'Hare Intl.) on a Friday, with around 116 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include British Airways, American Airlines, and United. Flight schedules are quite consistent throughout the week, with only a slight increase in flights on Fridays compared to other days.
What are the most popular departure times for flights from London (LHR-Heathrow) to Chicago, IL (ORD-O'Hare Intl.)?
The most popular departure times for flights from London Heathrow (LHR) to Chicago, IL (ORD-O'Hare Intl.) are in the morning, from 6am to 9am. Many major carriers, including United, Med View Airlines and Lufthansa, offer flights during this window. Many travelers prefer this because it allows for an early start to your journey, getting you to Chicago with plenty of time to settle in.
How long does it take to fly from London (LHR-Heathrow) to Chicago, IL (ORD-O'Hare Intl.)?
A non-stop flight from London Heathrow (LHR) to Chicago O'Hare Intl. (ORD) typically takes around 8 hours 48 minutes. This route covers a distance of approximately 6,345 kilometres. If you opt for a one-stop flight, your travel time will be longer, usually around 14 hours 48 minutes. Flights with two or more stops take even longer, averaging about 17 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from London (LHR-Heathrow) to Chicago, IL (ORD-O'Hare Intl.)?
You can fly business class or first class between LHR and ORD. Airlines that offer business class service on this route include:
  • Swiss International Air Lines
  • TAP Portugal
  • Air Baltic
  • ITA Airways
  • Lufthansa
  • Iberia
  • Air France
  • SAS
  • Brussels Airlines
  • KLM
  • Turkish Airlines
  • British Airways
  • Air Canada
  • Med View Airlines
  • LOT-Polish Airlines
  • Delta
  • Virgin Atlantic
  • Ethiopian Airlines
  • United
  • Austrian Airlines
  • Finnair
  • Icelandair
  • Helvetic Airways
  • American Airlines
First class cabins are available on British Airways and American Airlines.
How do I earn miles on a London (LHR) to Chicago, IL (ORD) flight with Expedia?
It's easy to earn miles on a London (LHR) to Chicago, IL (ORD) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Chicago, IL (ORD) from London (LHR)?
If you're planning to travel to Chicago from Heathrow (LHR), you can fly directly into O'Hare Intl. (ORD). Some flights may connect through major hubs like Humberto Delgado (LIS), Arlanda (ARN), or Gardermoen (OSL) before reaching Chicago. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from London (LHR) to Chicago, IL (ORD) at the last minute?
Typically, booking a last minute flight from London (LHR) to Chicago, IL (ORD) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a London (LHR) to Chicago, IL (ORD) flight and hotel package?
Securing a London (LHR) to Chicago, IL (ORD) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from London (LHR) to Chicago, IL (ORD)?
If you booked your London (LHR) to Chicago, IL (ORD) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Heathrow
Destination airport
O'Hare Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Return price
AU$940
Distance
6307 km
Average flight time
2 hours 53 mins

Book with confidence

Your quick guide to flights from London to Chicago

Pick up great flights from London to Chicago

With Expedia, you have your pick of flights a day with 20 airlines covering flights from London to Chicago. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from London to Chicago that take around hours.

Find cheap flights from London to Chicago

From the great flight deals with prices currently ranging from AU$940 to AU$1,200, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from London to Chicago around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Chicago is normally in September.

Reasons to book your flight from London to Chicago with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from London to Chicago across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Chicago right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from London to Chicago

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