Find flights
When to book
FAQs

Cheap flights from London, ON to Chicago O'Hare Intl Airport from C$ 319

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — ORD
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from London to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from London to O'Hare Intl
Explore the most affordable flight options available from London to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 October 2025.

Mon 8/125:10 a.m.YXU - ORD
1 stop5h 03mAir Canada
Sun 14/122:00 p.m.ORD - YXU
1 stop6h 21mAir Canada
Deal found 26/10C$ 681
Wed 3/129:25 a.m.YXU - ORD
1 stop6h 45mAir Canada
Sun 7/1210:00 a.m.ORD - YXU
1 stop6h 05mAir Canada
Deal found 26/10C$ 684
Wed 3/125:10 a.m.YXU - ORD
2 stops12h 43mUnited Airlines
Sun 7/1210:00 a.m.ORD - YXU
1 stop6h 05mUnited Airlines
Deal found 26/10C$ 764
Wed 3/128:10 p.m.YXU - ORD
2 stops24h 37mMultiple Airlines
Sun 7/129:06 p.m.ORD - YXU
3 stops45h 06mMultiple Airlines
Deal found 26/10C$ 825
Tue 28/105:40 p.m.YXU - ORD
2 stops7h 03mMultiple Airlines
Wed 29/107:15 a.m.ORD - YXU
2 stops8h 51mMultiple Airlines
Deal found 27/10C$ 1,631

Cheap flight deals from London to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) 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 28 October 2025.

Round-trip from

C$ 681

One-way from

C$ 319
Air Canada
  • Air Canada
  • 8/12-14/12
  • 2 total stops
  • 11h 24m total
  • London to Chicago
Search Deals
WestJet
  • WestJet
  • 11/12
  • 1 total stop
  • 18h 25m total
  • London to Chicago
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London 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 629,999 searches. Data last updated 28 October 2025.
Use the filters below to find and compare flights from London to Chicago O'Hare Intl Airport that are best for you.

Fly from

London

Fly to

O'Hare Intl

Route

Depart

Return

Price

LondonChicago

YXU - ORD

YXUORD

London

Wed 3/12

9:25 a.m.-3:10 p.m.

1 stop6h 45m

Chicago O'Hare Intl

Sun 7/12

10:00 a.m.-5:05 p.m.

1 stop6h 05m

C$ 684

LondonChicago

YXU - ORD

YXUORD

London

Wed 3/12

5:10 a.m.-4:53 p.m.

2 stops12h 43m

Chicago O'Hare Intl

Sun 7/12

10:00 a.m.-5:05 p.m.

1 stop6h 05m

C$ 764

LondonChicago

YXU - ORD

YXUORD

London

Wed 3/12

8:10 p.m.-7:47 p.m.

2 stops24h 37m

Chicago O'Hare Intl

Sun 7/12

9:06 p.m.-7:12 p.m.

3 stops45h 06m

C$ 825

LondonChicago

YXU - ORD

YXUORD

London

Mon 8/12

5:40 p.m.-11:43 p.m.

2 stops7h 03m

Chicago O'Hare Intl

Sun 14/12

8:15 p.m.-8:46 a.m.

1 stop11h 31m

C$ 841

LondonChicago

YXU - ORD

YXUORD

London

Thu 11/12

8:10 p.m.-1:35 p.m.

1 stop18h 25m

C$ 319

LondonChicago

YXU - ORD

YXUORD

London

Thu 11/12

8:10 p.m.-10:24 p.m.

2 stops27h 14m

C$ 373

LondonChicago

YXU - ORD

YXUORD

London

Thu 11/12

5:40 p.m.-10:05 p.m.

1 stop5h 25m

C$ 406

LondonChicago

YXU - ORD

YXUORD

London

Sun 9/11

5:15 a.m.-10:05 a.m.

1 stop5h 50m

C$ 660

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

Best time to book a flight from London to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from London with our price prediction graph.
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 O'Hare Intl Airport

What is the cheapest month to book a flight from London, Ontario to Chicago O'Hare Intl Airport?

Currently, April is the cheapest month in which you can book a flight from London, Ontario to Chicago O'Hare Intl Airport (average of C$ 117). Flying from London, Ontario to Chicago O'Hare Intl Airport in February is currently the most expensive (average of C$ 309). 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.

Related info for your journey

Find useful and relevant information for your journey from London 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.

  • What airport do you fly from for flights from London to Chicago O'Hare Intl?

    London (YXU) is the airport you will fly out of if you book a flight from London to Chicago O'Hare Intl. You should not have trouble finding flights to Chicago O'Hare Intl from London; the airport handles an average of 0 outbound flights to Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the London airport to Chicago O'Hare Intl. It is only a 8.6 km journey to London (YXU) from London’s city centre.

  • How long is the flight from London, Ontario to Chicago O'Hare Intl Airport?

    For as low as C$ 684, Air Canada can have you in Chicago O'Hare Intl Airport from London, Ontario in 6h 45m. There are 565 km between London, Ontario and Chicago O'Hare Intl Airport. This flight may include one or multiple stops.

  • Can I find deals for flights from London to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on London to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to O'Hare Intl.

  • Can I find deals for business class flights from London to O'Hare Intl?

    Yes. Cheapflights offers flight deals from London 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, Ontario to Chicago O'Hare Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from London, Ontario to Chicago O'Hare Intl Airport (average of C$ 117). Flying from London, Ontario to Chicago O'Hare Intl Airport in February is currently the most expensive (average of C$ 309). 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.

See more FAQs

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
Evanston
Des Plaines
Elk Grove Village
Skokie
Downers Grove
Naperville
Bolingbrook
Romeoville

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.

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 O'Hare Intl?

Deals for London 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 London to O'Hare Intl?

Cheapflights simply makes it quick and affordable to book flights from London to O'Hare Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London to O'Hare Intl with no change fees?

Certainly. Search results for flights to O'Hare Intl 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 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.