Cheap flights from London, ON to Chicago from C$ 375
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 15/7. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap 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 3 July 2025.
Round-trip from | C$ 534 |
---|---|
One-way from | C$ 375 |
Find flight deals from London to Chicago
Cheapest flights from London to ChicagoExplore 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 3 July 2025.
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 3 July 2025.
Cheapflights Fare Finder
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 629,999 searches. Data last updated 3 July 2025.
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
LondonChicago
YXU - ORD
YXUORD
London
Tue 14/10
3:40 p.m.-7:29 p.m.
1 stop4h 49m
Chicago O'Hare Intl
Tue 21/10
9:55 a.m.-3:02 p.m.
1 stop4h 07m
LondonChicago
YXU - ORD
YXUORD
London
Tue 14/10
9:55 a.m.-1:14 p.m.
1 stop4h 19m
Chicago O'Hare Intl
Tue 21/10
6:00 a.m.-3:02 p.m.
2 stops8h 02m
LondonChicago
YXU - ORD
YXUORD
London
Thu 14/8
9:55 a.m.-1:13 p.m.
1 stop4h 18m
Chicago O'Hare Intl
Thu 21/8
9:55 a.m.-3:02 p.m.
1 stop4h 07m
LondonChicago
YXU - MDW
YXUMDW
London
Thu 14/8
8:00 p.m.-4:24 p.m.
3 stops21h 24m
Chicago Midway
Thu 21/8
9:40 a.m.-5:14 a.m.
3 stops18h 34m
LondonChicago
YXU - MDW
YXUMDW
London
Thu 14/8
6:00 a.m.-9:44 p.m.
2 stops16h 44m
Chicago Midway
Thu 21/8
12:43 p.m.-5:14 a.m.
2 stops15h 31m
LondonChicago
YXU - ORD
YXUORD
London
Tue 15/7
6:00 a.m.-6:03 a.m.
2 stops25h 03m
LondonChicago
YXU - ORD
YXUORD
London
Tue 15/7
5:45 p.m.-10:05 p.m.
1 stop5h 20m
LondonChicago
YXU - ORD
YXUORD
London
Thu 14/8
9:55 a.m.-4:52 p.m.
2 stops7h 57m
LondonChicago
YXU - MDW
YXUMDW
London
Tue 15/7
8:00 p.m.-10:24 p.m.
3 stops51h 24m
LondonChicago
YXU - MDW
YXUMDW
London
Thu 14/8
8:00 p.m.-9:44 p.m.
2 stops26h 44m
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.
Cheapflights Insights
Everything you need to know about your flight from London to Chicago
What is the cheapest month to book a flight from London, Ontario to Chicago?
Currently, January is the cheapest month in which you can book a flight from London, Ontario to Chicago (average of C$ 261). Flying from London, Ontario to Chicago in March is currently the most expensive (average of C$ 352). 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.
Reviews of airlines servicing Chicago
Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated 3 July 2025.
Read through reviews of airlines operating flights from London to Chicago, such as United Airlines,WestJet, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
Comfort
Entertainment
Crew
Boarding
Overall
Reviews
Deb,Jan 2025
MKE - ORD
Food
Comfort
Entertainment
Crew
Boarding
Overall
Reviews
Deb,Jan 2025
MKE - ORD
Food
Comfort
Entertainment
Crew
Boarding
Overall
Reviews
Deb,Jan 2025
MKE - ORD
Food
Comfort
Entertainment
Crew
Boarding
Overall
Reviews
Deb,Jan 2025
MKE - ORD
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.
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Alternative routes for London to Chicago
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
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.