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Cheap flights from London, ON to Chicago O'Hare Intl Airport from C$ 446

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — ORD
3 Aug — 10 Aug1
1 adult

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 29 July 2025.

Round-trip from

C$ 446

Popular in

December

Cheapest in

June

Average price

C$ 626
WestJet
  • WestJet
  • 8/9-15/9
  • 2 total stops
  • 32h 25m total
  • London to Chicago
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Highest demand for flights based on searches. 9% potential increase in price (C$ 109 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 29 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from London to O'Hare Intl

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 29 July 2025.

Mon 8/98:00 p.m.YXU - ORD
1 stop21h 43mWestJet
Mon 15/95:30 p.m.ORD - YXU
1 stop10h 42mWestJet
Deal found 26/7C$ 446
Mon 8/96:00 a.m.YXU - ORD
3 stops29h 43mMultiple Airlines
Mon 15/95:30 p.m.ORD - YXU
1 stop10h 42mMultiple Airlines
Deal found 26/7C$ 584
Fri 24/106:15 a.m.YXU - ORD
2 stops6h 46mAir Canada
Sun 26/1011:15 a.m.ORD - YXU
1 stop4h 51mAir Canada
Deal found 29/7C$ 623
Mon 15/96:10 a.m.YXU - ORD
1 stop3h 58mUnited Airlines
Mon 22/97:00 a.m.ORD - YXU
2 stops7h 02mUnited Airlines
Deal found 27/7C$ 694

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 29 July 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

Mon 8/9

8:00 p.m.-4:43 p.m.

1 stop21h 43m

Chicago O'Hare Intl

Mon 15/9

5:30 p.m.-5:12 a.m.

1 stop10h 42m

C$ 446

LondonChicago

YXU - ORD

YXUORD

London

Mon 8/9

6:00 a.m.-10:43 a.m.

3 stops29h 43m

Chicago O'Hare Intl

Mon 15/9

5:30 p.m.-5:12 a.m.

1 stop10h 42m

C$ 584

LondonChicago

YXU - ORD

YXUORD

London

Fri 24/10

6:15 a.m.-12:01 p.m.

2 stops6h 46m

Chicago O'Hare Intl

Sun 26/10

11:15 a.m.-5:06 p.m.

1 stop4h 51m

C$ 623

LondonChicago

YXU - ORD

YXUORD

London

Mon 15/9

6:10 a.m.-9:08 a.m.

1 stop3h 58m

Chicago O'Hare Intl

Mon 22/9

7:00 a.m.-3:02 p.m.

2 stops7h 02m

C$ 694

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/7

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, January is the cheapest month in which you can book a flight from London, Ontario to Chicago O'Hare Intl Airport (average of C$ 261). Flying from London, Ontario to Chicago O'Hare Intl Airport 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.

What’s the top layover airport for flights from London, Ontario to Chicago O'Hare Intl Airport?

Share of one-stop round-trip flights from London, Ontario to Chicago O'Hare Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Toronto (YYZ) – chosen by Cheapflights users on 75% of one-stop itineraries from London, Ontario to Chicago O'Hare Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from London, Ontario to Chicago O'Hare Intl Airport?

Average round-trip fare for 1-stop flights from London, Ontario to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Calgary (YYC) is the most affordable 1-stop option, with an average round-trip price of C$ 470.

What’s the fastest layover option from London, Ontario to Chicago O'Hare Intl Airport?

Shortest average travel time for 1-stop one-way flights from London, Ontario to Chicago O'Hare Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 3h 16m.

Which airport typically offers the quickest layover for flights from London, Ontario to Chicago O'Hare Intl Airport?

Average layover duration for 1-stop one-way flights from London, Ontario to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 35m.

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 29 July 2025.
See what other customers who have flown with United Airlines,WestJet, andAir Canada from London to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,899 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,899 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
WestJet
7.2
Good
2,973 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
Air Canada
7.1
Good
9,822 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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.

  • What are the cheapest airlines flying from London, Ontario to Chicago O'Hare Intl Airport round-trip?

    Currently priced at C$ 446, WestJet will fly you from London, Ontario to Chicago O'Hare Intl Airport and back. In addition to WestJet, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and United Airlines - these airlines can fly you to your destination from C$ 623 and C$ 694, respectively. Users have found that WestJet is 43% cheaper than the other options available to this destination.

  • 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, January is the cheapest month in which you can book a flight from London, Ontario to Chicago O'Hare Intl Airport (average of C$ 261). Flying from London, Ontario to Chicago O'Hare Intl Airport 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.

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

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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.

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