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O'Hare Intl

$254+ Cheap flights from London, ON (YXU) to O'Hare Intl (ORD)

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — ORD
Jul 4 — Jul 111
Fri 7/4
Fri 7/11
1 adult, Economy
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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 June 29, 2025.

Round-trip from

$417
(Flightnetwork)

One-way from

$254
(Air Canada)

Popular in

December

Cheapest in

June

Average price

$343
From London to Chicago O'Hare Intl
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One-way flight from London to Chicago O'Hare Intl
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Highest demand for flights based on searches. 7% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 29, 2025.

This Flightnetwork deal was found by Cheapflights users on 6/27. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/116:15 amYXU - ORD
1 stop3h 54mAir Canada
Mon 8/183:50 pmORD - YXU
1 stop4h 37mAir Canada
Deal found 6/27$417
This Mytrip deal was found by Cheapflights users on 6/27. 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.
Mon 8/116:00 amYXU - ORD
3 stops25h 03mMultiple Airlines
Mon 8/186:00 amORD - YXU
2 stops22h 14mMultiple Airlines
Deal found 6/27$456
This United Airlines deal was found by Cheapflights users on 6/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/113:40 pmYXU - ORD
1 stop4h 49mUnited Airlines
Mon 8/188:52 amORD - YXU
2 stops7h 15mUnited Airlines
Deal found 6/27$543

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 2,558,603 searches. Data last updated June 29, 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 8/11

6:15 am-9:09 am

1 stop3h 54m

Chicago O'Hare Intl

Mon 8/18

3:50 pm-9:27 pm

1 stop4h 37m

$417

LondonChicago

YXU - ORD

YXUORD

London

Mon 8/11

6:00 am-6:03 am

3 stops25h 03m

Chicago O'Hare Intl

Mon 8/18

6:00 am-5:14 am

2 stops22h 14m

$456

LondonChicago

YXU - ORD

YXUORD

London

Mon 8/11

3:40 pm-7:29 pm

1 stop4h 49m

Chicago O'Hare Intl

Mon 8/18

8:52 am-5:07 pm

2 stops7h 15m

$543

LondonChicago

YXU - ORD

YXUORD

London

Tue 8/12

3:40 pm-7:29 pm

1 stop4h 49m

$254

LondonChicago

YXU - ORD

YXUORD

London

Tue 8/12

8:00 pm-4:50 am

3 stops33h 50m

$265

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

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, August is the cheapest month in which you can book a flight from London, Ontario to Chicago O'Hare Intl Airport (average of $245). Flying from London, Ontario to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 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 June 29, 2025.
Get a feel of what it's like to fly with United Airlines and Air Canada from London to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,849 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.0

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
8,849 reviews
United Airlines
7.4
Good
8,849 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.0

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
9,651 reviews
United Airlines
7.4
Good
8,849 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.0

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 5.3 mi journey to London (YXU) from London’s city center.

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

    According to our current data, Air Canada ($417), and United Airlines ($543) offers the cheapest pricing from London, Ontario to Chicago O'Hare Intl Airport. Air Canada is currently priced 28% below the average price you’ll pay for this route.

  • 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, August is the cheapest month in which you can book a flight from London, Ontario to Chicago O'Hare Intl Airport (average of $245). Flying from London, Ontario to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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

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