Cheap flights from London Heathrow Airport to Chicago O'Hare Intl Airport from £409
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ORD
29 Nov — 6 Dec1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Chicago O'Hare Intl are usually found in February or January, booked 29 days in advance, depart on a Wednesday or Friday and return on a Monday
Cheap flight deals from Heathrow to O'Hare Intl
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest flights from Heathrow to O'Hare Intl
Explore the most affordable flight options available from Heathrow to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.
Thu 19/1111:00 -
Nonstop8h 45m
Mon 30/1121:50 -
Nonstop7h 45m
Deal found 25/10£518
Thu 3/1206:40 -
1 stop16h 05m
Sat 16/119:10 -
1 stop32h 10m
Deal found 26/10£519
Mon 23/1111:00 -
Nonstop8h 45m
Fri 27/1117:10 -
Nonstop7h 45m
Deal found 25/10£520
Thu 19/1106:40 -
1 stop16h 05m
Thu 3/1219:10 -
1 stop14h 50m
Deal found 25/10£521
Tue 17/1110:20 -
1 stop12h 25m
Thu 3/1219:10 -
1 stop14h 50m
Deal found 25/10£522
Wed 11/1106:00 -
1 stop15h 30m
Sun 22/1120:10 -
1 stop20h 30m
Deal found 29/10£522
Fri 20/1111:00 -
Nonstop8h 45m
Mon 30/1121:50 -
Nonstop7h 45m
Deal found 25/10£524
Thu 12/1119:55 -
1 stop25h 35m
Sun 15/1120:10 -
1 stop15h 20m
Deal found 25/10£525
Tue 24/1107:05 -
2 stops15h 40m
Mon 30/1119:10 -
2 stops15h 15m
Deal found 29/10£525
Wed 18/1110:20 -
1 stop12h 25m
Mon 30/1119:10 -
1 stop20h 30m
Deal found 25/10£526
Mon 23/1106:40 -
2 stops16h 05m
Mon 30/1119:10 -
2 stops20h 25m
Deal found 30/10£527
Tue 24/1110:20 -
1 stop12h 25m
Sun 29/1119:10 -
2 stops17h 40m
Deal found 29/10£528
Best flights from Heathrow to O'Hare Intl
Discover carefully curated flight deals from Heathrow to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.
Fri 20/1106:40 -
1 stop16h 05m
Fri 11/1219:10 -
1 stop14h 50m
Deal found 26/10£582
Mon 23/1116:30 -
Nonstop8h 55m
Mon 7/1220:30 -
Nonstop7h 55m
Deal found 26/10£666
Mon 7/1213:35 -
Nonstop9h 20m
Wed 23/1221:50 -
Nonstop8h 10m
Deal found 29/10£669
Mon 7/1208:40 -
2 stops16h 05m
Tue 22/1207:45 -
1 stop16h 35m
Deal found 28/10£675
Sat 21/1115:35 -
2 stops31h 10m
Sat 28/1119:10 -
2 stops15h 50m
Deal found 25/10£591
Sun 22/1106:40 -
1 stop16h 05m
Sat 28/1119:10 -
2 stops20h 10m
Deal found 29/10£595
Thu 10/1206:30 -
2 stops15h 47m
Thu 17/1209:59 -
1 stop15h 06m
Deal found 26/10£708
Wed 2/1219:30 -
1 stop27h 15m
Tue 8/1210:38 -
2 stops25h 52m
Deal found 27/10£597
Sat 28/1111:05 -
1 stop31h 05m
Sat 5/1218:15 -
1 stop10h 35m
Deal found 29/10£774
Sun 29/1117:20 -
1 stop28h 30m
Sat 5/1217:47 -
1 stop32h 03m
Deal found 25/10£810
Wed 30/1212:35 -
Nonstop9h 00m
Wed 6/120:30 -
Nonstop7h 55m
Deal found 27/10£866
Direct flights from Heathrow to O'Hare Intl
Explore direct flight options from Heathrow to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.
Thu 19/1111:00 -
Nonstop8h 45m
Mon 30/1121:50 -
Nonstop7h 45m
Deal found 25/10£518
Mon 23/1111:00 -
Nonstop8h 45m
Fri 27/1117:10 -
Nonstop7h 45m
Deal found 25/10£520
Wed 6/111:00 -
Nonstop8h 45m
Wed 13/121:50 -
Nonstop7h 45m
Deal found 25/10£522
Fri 20/1111:00 -
Nonstop8h 45m
Mon 30/1121:50 -
Nonstop7h 45m
Deal found 25/10£524
Wed 18/1111:00 -
Nonstop8h 45m
Sat 28/1117:10 -
Nonstop7h 45m
Deal found 25/10£533
Wed 18/1111:00 -
Nonstop8h 45m
Mon 30/1121:50 -
Nonstop7h 45m
Deal found 25/10£534
Thu 7/115:40 -
Nonstop9h 05m
Thu 14/121:50 -
Nonstop7h 45m
Deal found 25/10£536
Fri 13/1115:40 -
Nonstop9h 05m
Wed 9/1221:50 -
Nonstop7h 45m
Deal found 28/10£537
Mon 23/1115:40 -
Nonstop9h 05m
Wed 2/1221:50 -
Nonstop7h 45m
Deal found 25/10£538
Tue 17/1115:40 -
Nonstop9h 05m
Mon 30/1121:50 -
Nonstop7h 45m
Deal found 25/10£539
Wed 6/111:00 -
Nonstop8h 45m
Mon 11/117:10 -
Nonstop7h 45m
Deal found 25/10£540
Wed 18/1115:40 -
Nonstop9h 05m
Tue 1/1217:10 -
Nonstop7h 45m
Deal found 25/10£541
Last-minute flights from Heathrow to O'Hare Intl
Discover last-minute flight deals from Heathrow to O'Hare Intl. Data last updated 30 October 2026 and is based on user searches.
Wed 11/1106:00 -
1 stop15h 30m
Sun 22/1120:10 -
1 stop20h 30m
Deal found 29/10£522
Thu 12/1119:55 -
1 stop25h 35m
Sun 15/1120:10 -
1 stop15h 20m
Deal found 25/10£525
Tue 17/1110:20 -
1 stop12h 25m
Thu 3/1219:10 -
1 stop14h 50m
Deal found 25/10£522
Wed 18/1110:20 -
1 stop12h 25m
Mon 30/1119:10 -
1 stop20h 30m
Deal found 25/10£526
Thu 19/1111:00 -
Nonstop8h 45m
Mon 30/1121:50 -
Nonstop7h 45m
Deal found 25/10£518
Thu 19/1106:40 -
1 stop16h 05m
Thu 3/1219:10 -
1 stop14h 50m
Deal found 25/10£521
Fri 20/1111:00 -
Nonstop8h 45m
Wed 2/1221:50 -
Nonstop7h 45m
Deal found 25/10£524
Mon 23/1111:00 -
Nonstop8h 45m
Fri 27/1117:10 -
Nonstop7h 45m
Deal found 25/10£520
Mon 23/1106:40 -
2 stops16h 05m
Mon 30/1119:10 -
2 stops20h 25m
Deal found 30/10£527
Tue 24/1107:05 -
2 stops15h 40m
Mon 30/1119:10 -
2 stops15h 15m
Deal found 29/10£525
One-way flights from Heathrow to O'Hare Intl
Search for one-way flight options from Heathrow to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.
Thu 5/1118:30 -
1 stop27h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/10£409
Thu 5/1106:40 -
2 stops16h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/10£410
Sat 23/112:15 -
1 stop11h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/10£412
Sat 14/1109:55 -
2 stops35h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/10£412
Fri 25/1206:00 -
1 stop15h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/10£413
Tue 3/1116:15 -
3 stops29h 15m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/10£414
Sun 8/1106:40 -
2 stops40h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/10£414
Mon 7/1209:00 -
3 stops35h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 27/10£415
Mon 21/1220:45 -
2 stops26h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/10£416
Tue 24/1112:15 -
1 stop11h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 26/10£417
Mon 9/1117:00 -
2 stops30h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 25/10£417
Sun 24/117:10 -
2 stops25h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 28/10£418
Find flight deals from Heathrow to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 October 2026.
Customise your flight search to find flights from Heathrow to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 30 October 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Fri 25/12
06:00-15:30
1 stop15h 30m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£413
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Wed 30/12
18:00-14:30
2 stops26h 30m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£535
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Mon 4/1
18:00-19:58
1 stop31h 58m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£540
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Sun 13/12
10:25-13:45
Nonstop9h 20m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£544
Fastest return journey
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Sun 27/12
07:40-10:45
Nonstop9h 05m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£546
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Fri 25/12
07:40-10:45
Nonstop9h 05m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£547
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Sat 12/12
18:00-11:50
2 stops23h 50m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£549
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Sat 7/11
19:55-15:30
1 stop25h 35m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£555
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Fri 20/11
06:40-16:45
1 stop16h 05m
Chicago O'Hare Intl
Fri 11/12
19:10-16:00
1 stop14h 50m
£582
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Sat 21/11
15:35-16:45
2 stops31h 10m
Chicago O'Hare Intl
Sat 28/11
19:10-17:00
2 stops15h 50m
£591
Flights are sorted by cheapest return flights first.
Deals found on 25/10
Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3
Best time to book a flight from Heathrow to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Heathrow with our price prediction graph.
LHR-ORD
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Chicago O'Hare Intl Airport
Prices
Delays
More
How far ahead should I book a flight from London Heathrow Airport to Chicago O'Hare Intl Airport?
The best time to book flights from London Heathrow Airport to Chicago O'Hare Intl Airport is 28 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from London Heathrow Airport to Chicago O'Hare Intl Airport?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Chicago O'Hare Intl Airport (average of £507). Flying from London Heathrow Airport to Chicago O'Hare Intl Airport in August is currently the most expensive (average of £842). 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.
What is the cheapest time of day to fly from LHR to ORD?
Find hourly flight availability from Heathrow to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 October 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Chicago O'Hare Intl Airport as you normally would.
How much does it cost for a return flight from London Heathrow Airport to Chicago O'Hare Intl Airport?
Airfare is below average for this route at the moment.
London Heathrow Airport to Chicago O'Hare Intl Airport flights typically cost between £561 and £698 in November.The cheapest return price found within the last 5 days was £518 on British Airways (19 Nov–30 Nov).
How often are flights from London to Chicago delayed?
About 8% of weekly flights between London and Chicago have experienced delays in the past year, with the average delay time being 179 minutes.
What is the most punctual flight time for London to Chicago flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Chicago flights?
Over the past year, United Airlines have had the lowest number of delays on this route, with just 5% of flights being delayed.
What’s the top stopover airport for flights from London Heathrow Airport to Chicago O'Hare Intl Airport?
Share of one-stop return flights from London Heathrow Airport to Chicago O'Hare Intl Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 38% of one-stop itineraries from London Heathrow Airport to Chicago O'Hare Intl Airport on Cheapflights.
What’s the cheapest stopover airport for flights from London Heathrow Airport to Chicago O'Hare Intl Airport?
Average return fare for one-stop flights from London Heathrow Airport to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Amsterdam (AMS) is the most affordable one-stop option, with an average return flight price of £371.
What’s the fastest stopover option from London Heathrow Airport to Chicago O'Hare Intl Airport?
Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Chicago O'Hare Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 11h 40m.
Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Chicago O'Hare Intl Airport?
Average stopover duration for one-stop one-way flights from London Heathrow Airport to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Zurich (ZRH) offer the fastest connection on this route, with an average stopover time of 1h 03m.
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated 30 October 2026.
Check out reviews from past customers who have flown with Aer Lingus,United Airlines, andIcelandair from London Heathrow Airport to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Related info for your journey
Find useful and relevant information for your journey from Heathrow to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How long is the flight from London Heathrow Airport to Chicago O'Hare Intl Airport?
Airlines like Scandinavian Airlines fly from London Heathrow Airport to Chicago O'Hare Intl Airport in about 16h 05m. The time it takes to get you to your destination can typically vary by up to . The distance from London Heathrow Airport to Chicago O'Hare Intl Airport is about 3939 mi.
What are the cheapest airlines flying from London Heathrow Airport to Chicago O'Hare Intl Airport round-trip?
Our cheapest airline available from London Heathrow Airport to Chicago O'Hare Intl Airport is Virgin Atlantic. Our recent data shows that you can find tickets from as low as £213 on this airline. Additional options worth looking into are Icelandair and TAP AIR PORTUGAL, starting at £384 and £390 round-trip. Users have found that Virgin Atlantic is 68% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from London Heathrow Airport to Chicago O'Hare Intl Airport one-way?
£317 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Icelandair and JetBlue, with prices starting from £327 and £353, respectively.
What are the most reliable airlines from London Heathrow Airport to Chicago O'Hare Intl Airport?
The top 3 most reliable airlines when flying from London Heathrow Airport to Chicago O'Hare Intl Airport are Air Canada (88%), Austrian Airlines (88%) and United Airlines (88%).
What are the cheapest flights from London Heathrow Airport to Chicago O'Hare Intl Airport?
While on average a flight from London Heathrow Airport to Chicago O'Hare Intl Airport is generally £1,679, our data shows the cheapest flight currently is £411. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £452 for that flight.
Can I find deals for business class flights from Heathrow to O'Hare Intl?
Yes. Cheapflights offers flight deals from Heathrow to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London Heathrow Airport to Chicago O'Hare Intl Airport?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Chicago O'Hare Intl Airport (average of £507). Flying from London Heathrow Airport to Chicago O'Hare Intl Airport in August is currently the most expensive (average of £842). 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.
Travelling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Elk Grove Village
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Airlines
Alternative routes
Complete your trip
Direct flights to Illinois
Flights by cabin class
O'Hare Intl flight routes
Other flight options
Other flights from Heathrow
Popular flights
Fly from Heathrow to O'Hare Intl on these airlines
Choose from the following airlines for your flight from Heathrow to O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.
Top 10 airlines flying from Heathrow to O'Hare Intl
Discover the top 10 airlines that operate flights from Heathrow to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 30 October 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Heathrow to O'Hare Intl?
Deals for Heathrow to O'Hare Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to O'Hare Intl?
Cheapflights helps you find that perfect flight to O'Hare Intl from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Heathrow to O'Hare Intl with no change fees?
Certainly. Search results for flights to O'Hare Intl from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Heathrow to O'Hare Intl become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.