$316+ Cheap flights from Chicago (CHI) to London, ON (YXU)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YXU
Sep 30 — Oct 71
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to London 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.Cheap flight deals from Chicago to London
Cheapest
Best
Last-minute
One-way
Cheapest flights from Chicago to LondonExplore the most affordable flight options available from Chicago to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 31, 2026.
Explore the most affordable flight options available from Chicago to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 31, 2026.
This oojo deal was found by Cheapflights users on 8/27. 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.
Sun 10/115:30 pm -
1 stop10h 50m
Sun 10/186:10 am -
1 stop11h 30m
Deal found 8/27![WestJet logo]()
$511
This Kiwi.com deal was found by Cheapflights users on 8/27. 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.
Sun 10/115:30 pm -
1 stop10h 50m
Sun 10/186:10 am -
2 stops25h 24m
Deal found 8/27![Multiple Airlines logo]()
$592
This Kiwi.com deal was found by Cheapflights users on 8/28. 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.
Mon 10/126:30 am -
2 stops21h 50m
Mon 10/196:10 am -
1 stop11h 30m
Deal found 8/28![Multiple Airlines logo]()
$637
This deal was found by Cheapflights users on 8/30. 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.
Sun 11/294:30 pm -
1 stop4h 22m
Sat 12/53:20 pm -
1 stop5h 38m
Deal found 8/30![Air Canada logo]()
$676
This Mytrip deal was found by Cheapflights users on 8/28. 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 10/128:45 am -
2 stops7h 58m
Mon 10/196:20 pm -
3 stops16h 57m
Deal found 8/28![Air Canada logo]()
$733
This Air Canada deal was found by Cheapflights users on 8/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:40 pm -
1 stop11h 40m
Sat 9/196:20 pm -
2 stops14h 21m
Deal found 8/26![Air Canada logo]()
$785
Best flights from Chicago to LondonDiscover carefully curated flight deals from Chicago to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 31, 2026.
Discover carefully curated flight deals from Chicago to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 31, 2026.
This oojo deal was found by Cheapflights users on 8/27. 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.
Sun 10/115:30 pm -
1 stop10h 50m
Sun 10/186:10 am -
1 stop11h 30m
Deal found 8/27![WestJet logo]()
$511
This Kiwi.com deal was found by Cheapflights users on 8/28. 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.
Mon 10/126:30 am -
2 stops21h 50m
Mon 10/196:10 am -
1 stop11h 30m
Deal found 8/28![Multiple Airlines logo]()
$637
This Mytrip deal was found by Cheapflights users on 8/28. 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 10/128:45 am -
2 stops7h 58m
Mon 10/196:20 pm -
3 stops16h 57m
Deal found 8/28![Air Canada logo]()
$733
This Air Canada deal was found by Cheapflights users on 8/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:40 pm -
1 stop11h 40m
Sat 9/196:20 pm -
2 stops14h 21m
Deal found 8/26![Air Canada logo]()
$785
This Mytrip deal was found by Cheapflights users on 8/27. 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.
Sun 10/1112:55 pm -
3 stops39h 25m
Sun 10/186:10 am -
1 stop11h 30m
Deal found 8/27![Multiple Airlines logo]()
$850
Last-minute flights from Chicago to LondonDiscover last-minute flight deals from Chicago to London. Data last updated August 31, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to London. Data last updated August 31, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 8/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:40 pm -
1 stop11h 40m
Sat 9/196:20 pm -
2 stops14h 21m
Deal found 8/26![Air Canada logo]()
$785
One-way flights from Chicago to LondonSearch for one-way flight options from Chicago to London. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.
Search for one-way flight options from Chicago to London. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/29. 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.
Mon 9/286:00 am -
3 stops22h 20m
Deal found 8/29![Multiple Airlines logo]()
$316
This Air Canada deal was found by Cheapflights users on 8/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:55 am -
1 stop3h 55m
Deal found 8/29![Air Canada logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 8/28. 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.
Mon 10/126:30 am -
2 stops21h 50m
Deal found 8/28![Multiple Airlines logo]()
$341
This Flightnetwork deal was found by Cheapflights users on 8/28. 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.
Mon 10/122:15 pm -
1 stop6h 25m
Deal found 8/28![Air Canada logo]()
$390
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Sat 10/1010:43 am -
1 stop6h 00m
Deal found 8/26![United Airlines logo]()
$470
This United Airlines deal was found by Cheapflights users on 8/30. 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.
Sun 9/133:45 pm -
1 stop4h 55m
Deal found 8/30![United Airlines logo]()
$586
Find flight deals from Chicago to London
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to London (YXU). 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 August 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $466 (Kiwi.com) |
One-way from | $316 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to London 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 August 31, 2026.
Use the filters below to find and compare flights from Chicago to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
ChicagoLondon
ORD Chicago O'Hare Intl - YXU London
ORDYXU
Chicago O'Hare Intl
Sun 10/11
5:30 pm-5:20 am
1 stop10h 50m
London
Sun 10/18
6:10 am-4:40 pm
1 stop11h 30m
$511
ChicagoLondon
ORD Chicago O'Hare Intl - YXU London
ORDYXU
Chicago O'Hare Intl
Mon 10/12
6:30 am-5:20 am
2 stops21h 50m
London
Mon 10/19
6:10 am-4:40 pm
1 stop11h 30m
$637
ChicagoLondon
ORD Chicago O'Hare Intl - YXU London
ORDYXU
Chicago O'Hare Intl
Mon 10/12
8:45 am-5:43 pm
2 stops7h 58m
London
Mon 10/19
6:20 pm-10:17 am
3 stops16h 57m
$733
ChicagoLondon
ORD Chicago O'Hare Intl - YXU London
ORDYXU
Chicago O'Hare Intl
Tue 9/15
8:40 pm-9:20 am
1 stop11h 40m
London
Sat 9/19
6:20 pm-7:41 am
2 stops14h 21m
$785
ChicagoLondon
ORD Chicago O'Hare Intl - YXU London
ORDYXU
Chicago O'Hare Intl
Sun 10/11
12:55 pm-5:20 am
3 stops39h 25m
London
Sun 10/18
6:10 am-4:40 pm
1 stop11h 30m
$850
Cheapest one-way
ChicagoLondon
ORD Chicago O'Hare Intl - YXU London
ORDYXU
Chicago O'Hare Intl
Mon 9/28
6:00 am-5:20 am
3 stops22h 20m
$316
Quickest one-way
ChicagoLondon
ORD Chicago O'Hare Intl - YXU London
ORDYXU
Chicago O'Hare Intl
Mon 9/28
9:55 am-2:50 pm
1 stop3h 55m
$323
ChicagoLondon
ORD Chicago O'Hare Intl - YXU London
ORDYXU
Chicago O'Hare Intl
Mon 10/12
6:30 am-5:20 am
2 stops21h 50m
$341
ChicagoLondon
ORD Chicago O'Hare Intl - YXU London
ORDYXU
Chicago O'Hare Intl
Mon 10/12
11:05 am-9:40 pm
2 stops9h 35m
$394
ChicagoLondon
ORD Chicago O'Hare Intl - YXU London
ORDYXU
Chicago O'Hare Intl
Sat 10/10
10:43 am-5:43 pm
1 stop6h 00m
$470
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from Chicago to London
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 Chicago to London in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago-London, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-London, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-London, Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago-London, Ontario 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 Chicago-London, Ontario 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 Chicago to London
Have a flexible travel schedule? Discover the best time to fly to London from Chicago with our price prediction graph.
CHI-YXU
ORD-YXU
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 Chicago to London
CHI-YXU
ORD-YXU
No data available for this route at this time. Please check back soon.
Related info for your journey
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