$535+ Cheap flights from Heathrow (LHR) to O'Hare Intl (ORD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ORD
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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Find cheap flights from Heathrow to O'Hare Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 Friday or Thursday and return on a Tuesday
Cheap flight deals from Heathrow to O'Hare Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Heathrow to O'Hare IntlExplore 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 October 26, 2026.
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 October 26, 2026.
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:50 am -
2 stops15h 30m
Mon 12/76:30 pm -
3 stops18h 45m
Deal found 10/21![Multiple Airlines logo]()
$688
This Expedia deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:55 pm -
1 stop25h 35m
Sun 11/298:10 pm -
1 stop19h 25m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$689
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:20 am -
2 stops17h 00m
Wed 11/256:30 pm -
2 stops20h 55m
Deal found 10/21![Multiple Airlines logo]()
$691
This oojo deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:30 pm -
1 stop27h 15m
Mon 11/307:10 pm -
2 stops20h 25m
Deal found 10/23![Scandinavian Airlines logo]()
$693
This deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:40 am -
1 stop16h 05m
Thu 12/37:10 pm -
1 stop14h 50m
Deal found 10/25![Scandinavian Airlines logo]()
$695
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/116:00 am -
1 stop15h 30m
Wed 12/307:00 pm -
1 stop20h 35m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$697
This deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:00 am -
Nonstop8h 45m
Mon 11/309:50 pm -
Nonstop7h 45m
Deal found 10/25![British Airways logo]()
$699
This Gotogate deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:55 pm -
1 stop25h 35m
Sun 11/158:10 pm -
1 stop15h 20m
Deal found 10/25![TAP AIR PORTUGAL logo]()
$700
This Expedia deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:40 am -
1 stop16h 05m
Mon 12/77:10 pm -
1 stop16h 30m
Deal found 10/24![Scandinavian Airlines logo]()
$701
This Justfly.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:30 pm -
1 stop27h 00m
Sun 11/228:10 pm -
1 stop15h 20m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$702
Best flights from Heathrow to O'Hare IntlDiscover carefully curated flight deals from Heathrow to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Heathrow to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/1510:20 am -
1 stop12h 25m
Fri 1/227:10 pm -
2 stops32h 25m
Deal found 10/21![Scandinavian Airlines logo]()
$711
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/187:30 am -
1 stop13h 50m
Mon 1/186:15 pm -
1 stop10h 35m
Deal found 10/22![United Airlines logo]()
$801
This Icelandair deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/88:35 pm -
1 stop26h 45m
Wed 11/256:30 pm -
1 stop19h 00m
Deal found 10/23![Icelandair logo]()
$845
This British Airways deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/234:30 pm -
Nonstop8h 55m
Mon 12/78:30 pm -
Nonstop7h 55m
Deal found 10/25![British Airways logo]()
$888
This Lufthansa deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:40 am -
Nonstop9h 05m
Mon 11/233:45 pm -
Nonstop8h 10m
Deal found 10/23![Multiple Airlines logo]()
$1,022
This Scandinavian Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/245:00 pm -
1 stop29h 45m
Tue 3/27:10 pm -
2 stops20h 10m
Deal found 10/21![Scandinavian Airlines logo]()
$717
This Scandinavian Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/87:05 am -
2 stops15h 05m
Sat 4/177:15 pm -
2 stops17h 35m
Deal found 10/24![Scandinavian Airlines logo]()
$769
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:10 am -
1 stop13h 15m
Mon 12/79:50 pm -
Nonstop8h 10m
Deal found 10/25![United Airlines logo]()
$855
This Scandinavian Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:05 am -
2 stops15h 40m
Tue 12/810:38 am -
2 stops25h 02m
Deal found 10/24![Scandinavian Airlines logo]()
$826
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/66:00 pm -
1 stop31h 58m
Fri 1/85:45 pm -
Nonstop8h 10m
Deal found 10/21![United Airlines logo]()
$924
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/251:00 pm -
1 stop11h 52m
Mon 4/56:10 pm -
Nonstop8h 20m
Deal found 10/24![United Airlines logo]()
$986
Last-minute flights from Heathrow to O'Hare IntlDiscover last-minute flight deals from Heathrow to O'Hare Intl. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Heathrow to O'Hare Intl. Data last updated October 26, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:30 pm -
1 stop27h 00m
Sun 11/228:10 pm -
1 stop15h 20m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$702
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/61:45 pm -
1 stop32h 30m
Sat 11/76:17 pm -
1 stop32h 13m
Deal found 10/24![United Airlines logo]()
$697
This Gotogate deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:55 pm -
1 stop25h 35m
Sun 11/158:10 pm -
1 stop15h 20m
Deal found 10/25![TAP AIR PORTUGAL logo]()
$700
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:20 am -
2 stops17h 00m
Wed 11/256:30 pm -
2 stops20h 55m
Deal found 10/21![Multiple Airlines logo]()
$691
This deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:40 am -
1 stop16h 05m
Thu 12/37:10 pm -
1 stop14h 50m
Deal found 10/25![Scandinavian Airlines logo]()
$695
This oojo deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:30 pm -
1 stop27h 15m
Mon 11/307:10 pm -
2 stops20h 25m
Deal found 10/23![Scandinavian Airlines logo]()
$693
This deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:00 am -
Nonstop8h 45m
Mon 11/309:50 pm -
Nonstop7h 45m
Deal found 10/25![British Airways logo]()
$699
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:50 am -
2 stops15h 30m
Mon 12/76:30 pm -
3 stops18h 45m
Deal found 10/21![Multiple Airlines logo]()
$688
This Expedia deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:40 am -
1 stop16h 05m
Mon 12/77:10 pm -
1 stop16h 30m
Deal found 10/24![Scandinavian Airlines logo]()
$701
This Expedia deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:55 pm -
1 stop25h 35m
Sun 11/298:10 pm -
1 stop19h 25m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$689
One-way flights from Heathrow to O'Hare IntlSearch for one-way flight options from Heathrow to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Heathrow to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/912:15 pm -
3 stops25h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$535
This Trip.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/308:05 pm -
1 stop26h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![SWISS logo]()
$536
This Flightnetwork deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:55 pm -
1 stop25h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$537
This Justfly.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:00 am -
1 stop15h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![TAP AIR PORTUGAL logo]()
$543
This Booking.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:30 pm -
1 stop27h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$544
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:40 am -
2 stops16h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$547
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/138:45 pm -
2 stops23h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$548
This oojo deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/2312:15 pm -
1 stop11h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Icelandair logo]()
$549
This Mytrip deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:40 am -
2 stops16h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$550
This TAP AIR PORTUGAL deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:30 pm -
1 stop27h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![TAP AIR PORTUGAL logo]()
$551
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 October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $685 (Ticket) |
One-way from | $535 (Kiwi.com) |
Popular in | August |
Cheapest in | February |
Average price | $926 |
Good round-trip deal | $823 or less |
Good one-way deal | $768 or less |
Cheapflights Fare Finder
Customize 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 October 26, 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
Cheapest round-trip
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Tue 11/17
6:30 pm-3:30 pm
1 stop27h 00m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$551
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Wed 1/27
9:00 am-11:28 pm
2 stops20h 28m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$557
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Thu 4/15
4:35 pm-4:00 pm
1 stop29h 25m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$558
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Sat 1/16
12:25 pm-3:30 pm
1 stop33h 05m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$558
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Tue 12/8
1:35 pm-4:55 pm
Nonstop9h 20m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$580
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Mon 1/18
7:50 am-10:55 am
Nonstop9h 05m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$594
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Tue 1/12
7:40 am-10:45 am
Nonstop9h 05m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$594
Quickest round-trip
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Tue 4/20
8:00 am-10:55 am
Nonstop8h 55m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$599
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Wed 4/14
11:05 am-2:10 pm
Nonstop9h 05m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$599
LondonChicago
LHR London Heathrow - ORD Chicago O'Hare Intl
LHRORD
London Heathrow
Fri 1/15
9:00 am-11:28 pm
2 stops20h 28m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$613
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Heathrow to O'Hare Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to O'Hare Intl in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on London Heathrow Airport-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on London Heathrow Airport-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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 round-trip 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
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 $676). Flying from London Heathrow Airport to Chicago O'Hare Intl Airport in August is currently the most expensive (average of $1,123). 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 October 26, 2026.
When flying from London Heathrow Airport to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 last year, United Airlines have had the lowest number of delays on this route, with just 5% of flights being delayed.
The best insider tips for London Heathrow Airport to Chicago O'Hare Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your London Heathrow Airport to Chicago O'Hare Intl Airport trip
Our travel experts
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 October 26, 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Chicago O'Hare Intl Airport, such as Austrian Airlines,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.6
Overall
7.5
Crew
8.1
Food
6.7
Entertainment
6.8
Comfort
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Oct 2026
VIE - IAD
Boarding
7.6
Overall
7.5
Crew
8.1
Food
6.7
Entertainment
6.8
Comfort
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Oct 2026
VIE - IAD
Boarding
7.6
Overall
7.5
Crew
8.1
Food
6.7
Entertainment
6.8
Comfort
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Oct 2026
VIE - IAD
Boarding
7.6
Overall
7.5
Crew
8.1
Food
6.7
Entertainment
6.8
Comfort
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Oct 2026
VIE - IAD
Boarding
7.6
Overall
7.5
Crew
8.1
Food
6.7
Entertainment
6.8
Comfort
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Oct 2026
VIE - IAD
Boarding
7.6
Overall
7.5
Crew
8.1
Food
6.7
Entertainment
6.8
Comfort
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Oct 2026
VIE - IAD
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.
Traveling 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 locationsBenton Harbor
Rosemont
Naperville
Lake Geneva
Des Plaines
Glenview
Schaumburg
Oak Brook
Aurora
Oakbrook Terrace
Delavan
Libertyville
Rockford
Hoffman Estates
Beloit
Gurnee
Orland Park
South Holland
Elgin
Racine
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Other flights to O'Hare Intl
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.
Heathrow and O'Hare Intl flights
Browse other Heathrow and O'Hare Intl flight options. Last updated on October 26, 2026.
Other flights from Heathrow
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from Heathrow to O'Hare Intl
Discover the top 7 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 October 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$421 | Average$662 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$598 | Average$946 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$614 | Average$957 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$666 | Average$696 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$703 | Average$848 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$806 | Average$895 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$895 | Average$1,140 | FlexibilityNo cancel fee | On-time69% |