Cheap flights from London, ON to Chicago from C$ 332
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 21/12. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — CHI
9 Dec — 16 Dec1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheap flight deals from London to Chicago
Enter your travel dates to find the best prices.
Cheapest
Best
Last-minute
One-way
Cheapest flights from London to Chicago
Explore the most affordable flight options available from London to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 November 2026.
Mon 23/1110:15 a.m. -
1 stop14h 19m
Sat 28/114:00 p.m. -
1 stop24h 45m
Deal found 5/11C$ 545
Sun 20/126:15 a.m. -
1 stop11h 37m
Thu 31/125:01 a.m. -
1 stop8h 04m
Deal found 9/11C$ 696
Sat 5/1210:00 a.m. -
2 stops13h 00m
Fri 11/129:29 p.m. -
2 stops18h 31m
Deal found 5/11C$ 823
Thu 24/125:30 a.m. -
1 stop4h 38m
Thu 31/124:30 p.m. -
1 stop4h 22m
Deal found 9/11C$ 893
Best flights from London to Chicago
Discover carefully curated flight deals from London to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.
Mon 23/1110:15 a.m. -
1 stop14h 19m
Sat 28/114:00 p.m. -
1 stop24h 45m
Deal found 5/11C$ 545
Thu 24/125:30 a.m. -
2 stops10h 22m
Thu 31/124:30 p.m. -
1 stop4h 22m
Deal found 9/11C$ 906
Sun 20/125:30 a.m. -
1 stop4h 38m
Thu 31/1211:07 a.m. -
2 stops9h 45m
Deal found 9/11C$ 1,031
Sat 5/1210:00 a.m. -
2 stops13h 00m
Fri 11/129:29 p.m. -
2 stops18h 31m
Deal found 5/11C$ 823
Thu 24/129:15 a.m. -
1 stop4h 58m
Thu 31/127:55 p.m. -
2 stops17h 47m
Deal found 9/11C$ 1,031
Wed 9/123:20 p.m. -
1 stop5h 38m
Sun 13/129:35 p.m. -
2 stops16h 07m
Deal found 7/11C$ 1,058
Last-minute flights from London to Chicago
Discover last-minute flight deals from London to Chicago. Data last updated 9 November 2026 and is based on user searches.
Mon 23/1110:15 a.m. -
1 stop14h 19m
Sat 28/114:00 p.m. -
1 stop24h 45m
Deal found 5/11C$ 545
Sat 5/1210:00 a.m. -
2 stops13h 00m
Fri 11/129:29 p.m. -
2 stops18h 31m
Deal found 5/11C$ 823
Sun 20/126:15 a.m. -
1 stop11h 37m
Thu 31/125:01 a.m. -
1 stop8h 04m
Deal found 9/11C$ 696
Thu 24/125:30 a.m. -
1 stop4h 38m
Thu 31/124:30 p.m. -
1 stop4h 22m
Deal found 9/11C$ 893
One-way flights from London to Chicago
Search for one-way flight options from London to Chicago. Find affordable one-way fares based on user searches. Data last updated 9 November 2026.
Mon 21/126:15 a.m. -
1 stop11h 37m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 6/11C$ 332
Thu 24/128:20 a.m. -
2 stops28h 40m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 9/11C$ 398
Thu 24/129:15 a.m. -
1 stop4h 58m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 9/11C$ 546
Find flight deals from London to Chicago
Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Chicago (CHI). 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 9 November 2026.
Customize your flight search to find flights from London to Chicago 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 9 November 2026.
Use the filters below to find and compare flights from London to Chicago that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
LondonChicago
YXU London - ORD Chicago O'Hare Intl
YXUORD
London
Mon 21/12
6:15 a.m.-3:50 p.m.
2 stops34h 35m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 361
LondonChicago
YXU London - ORD Chicago O'Hare Intl
YXUORD
London
Mon 23/11
10:15 a.m.-11:34 p.m.
1 stop14h 19m
Chicago O'Hare Intl
Sat 28/11
4:00 p.m.-5:45 p.m.
1 stop24h 45m
C$ 545
Quickest round-trip
LondonChicago
YXU London - ORD Chicago O'Hare Intl
YXUORD
London
Thu 24/12
9:15 a.m.-1:13 p.m.
1 stop4h 58m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 546
LondonChicago
YXU London - ORD Chicago O'Hare Intl
YXUORD
London
Sat 5/12
10:00 a.m.-10:00 p.m.
2 stops13h 00m
Chicago O'Hare Intl
Fri 11/12
9:29 p.m.-5:00 p.m.
2 stops18h 31m
C$ 823
LondonChicago
YXU London - ORD Chicago O'Hare Intl
YXUORD
London
Thu 24/12
5:30 a.m.-2:52 p.m.
2 stops10h 22m
Chicago O'Hare Intl
Thu 31/12
4:30 p.m.-9:52 p.m.
1 stop4h 22m
C$ 906
LondonChicago
YXU London - ORD Chicago O'Hare Intl
YXUORD
London
Sun 20/12
5:30 a.m.-9:08 a.m.
1 stop4h 38m
Chicago O'Hare Intl
Thu 31/12
11:07 a.m.-9:52 p.m.
2 stops9h 45m
C$ 1,031
LondonChicago
YXU London - ORD Chicago O'Hare Intl
YXUORD
London
Thu 24/12
9:15 a.m.-1:13 p.m.
1 stop4h 58m
Chicago O'Hare Intl
Thu 31/12
7:55 p.m.-2:42 p.m.
2 stops17h 47m
C$ 1,031
LondonChicago
YXU London - ORD Chicago O'Hare Intl
YXUORD
London
Wed 9/12
3:20 p.m.-7:58 p.m.
1 stop5h 38m
Chicago O'Hare Intl
Sun 13/12
9:35 p.m.-2:42 p.m.
2 stops16h 07m
C$ 1,058
Flights are sorted by cheapest round-trip flights first.
Deals found on 6/11
Sorted by cheapest first
Best time to book a flight from London to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from London with our price prediction graph.
YXU-CHI
YXU-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 to Chicago
YXU-CHI
YXU-ORD
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from London to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly from for flights from London to Chicago?
If you book a flight to Chicago from London, you will be flying from London, which is the city’s only airport. London (YXU) is located 8.6 km from the centre of London. There are 0 flights from London to Chicago per day from 0 different airlines.
How long is the flight from London, Ontario to Chicago?
For as low as C$ 906, Air Canada can have you in Chicago from London, Ontario in 10h 22m. Airlines will cover a distance of 565 km.
Can I find deals for flights from London to Chicago that include hotel bookings?
Yes. In addition to deals on London to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from London to Chicago?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Chicago.
Can I find deals for business class flights from London to Chicago?
Yes. Cheapflights offers flight deals from London to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 9 November 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from London to Chicago?
Deals for London to Chicago 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 London to Chicago?
Cheapflights helps you find that perfect flight to Chicago from London 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 London to Chicago with no change fees?
Certainly. Search results for flights to Chicago from London 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 London to Chicago become cheaper?
Yes, Cheapflights offers price alerts on London to Chicago flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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