HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$446+ Cheap flights from Chicago (CHI) to London, ON (YXU)

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YXU
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to London with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Chicago to London

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to London (YXU). 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 November 21, 2024.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$856
(Air Canada)

One-way from

$446
(United Airlines)
Provider with most accurate pricing for Chicago (CHI)-London flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-London flights.
Search Deals
From Chicago (CHI) to London
Search Deals
One-way flight from Chicago (CHI) to London
Search Deals

Find flight deals from Chicago to London

Cheapest flights from Chicago to London
Explore the most affordable flight options available from Chicago to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This United Airlines deal was found by Cheapflights users on 11/20. 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.
Wed 11/272:35 pmORD - YXU
2 stops17h 45mUnited Airlines
Sun 12/15:45 amYXU - ORD
1 stop4h 12mUnited Airlines
Deal found 11/20$971
This Air Canada deal was found by Cheapflights users on 11/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/272:05 pmORD - YXU
1 stop5h 15mAir Canada
Sun 12/15:45 amYXU - ORD
1 stop4h 12mAir Canada
Deal found 11/20$989
This United deal was found by Cheapflights users on 11/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/272:35 pmORD - YXU
2 stops17h 45mMultiple Airlines
Sun 12/15:45 amYXU - ORD
2 stops13h 51mMultiple Airlines
Deal found 11/20$1,004

Find flights from Chicago to London within your budget

Customize your flight search to find flights from Chicago to London 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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 1/3

2:05 pm-8:20 pm

1 stop5h 15m

London

Fri 1/10

5:45 am-10:10 am

1 stop5h 25m

$856

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 1/3

12:51 pm-8:20 pm

1 stop6h 29m

London

Fri 1/10

9:55 am-8:05 am

2 stops23h 10m

$862

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 1/4

2:05 pm-8:20 pm

1 stop5h 15m

$446

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 1/4

9:35 pm-11:20 am

2 stops36h 45m

$454

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sun 1/5

8:30 pm-2:50 pm

1 stop17h 20m

$515

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Compare providers for flights from Chicago to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to London in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-London, Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago-London, Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chicago-London, Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-London, Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-London, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to London

Have a flexible travel schedule? Discover the best time to fly to London from Chicago 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.

Travel insights for flights from Chicago to London

Get recent, data-driven insights about flights from Chicago to London including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from CHI to YXU?

Find hourly flight availability from Chicago to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

It’s typically best to fly out from Chicago to London, Ontario in the afternoon. Doing so could potentially save you 15% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London, Ontario ranges from 2.8 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. March is typically the driest time to visit London, Ontario when rainfall is around 2.8 in.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated November 21, 2024.
United Airlines
7.4
Good
9,172 reviews

Entertainment

7.1

Crew

8.1

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

United Airlines
7.4
Good
9,172 reviews
United Airlines
7.4
Good
9,172 reviews

Entertainment

7.1

Crew

8.1

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

Air Canada
7.0
Good
8,246 reviews
United Airlines
7.4
Good
9,172 reviews

Entertainment

7.1

Crew

8.1

Food

6.7

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

Related info for your journey

Find useful and relevant information for your journey from Chicago to London. 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 into for flights to London from Chicago?

    Located just 5.3 mi from the city center, London is the airport most travelers will use when flying to London from Chicago. Booking flights from Chicago to London (YXU) should be relatively easy as there are 0 daily inbound flights from Chicago from 1 airline.

  • What is the cheapest airline to fly from Chicago to London, Ontario round-trip?

    Flying on United Airlines is currently your cheapest option to London, Ontario, with prices starting at $862.

  • Can I find deals for flights from Chicago to London that include hotel bookings?

    Yes. In addition to deals on Chicago to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to London?

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

  • Can I find deals for business class flights from Chicago to London?

    Yes. Cheapflights offers flight deals from Chicago to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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.

Alternative routes for Chicago to London

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Pearson Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Toronto Island flights
Midway to Pearson Intl flights
Midway to Toronto Island flights
Midway to Pierre Elliott Trudeau Intl flights
St. Louis to Pearson Intl flights
O'Hare Intl to Ottawa flights
Midway to Ottawa flights
St. Louis to Pierre Elliott Trudeau Intl flights
O'Hare Intl to London flights
St. Louis to Ottawa flights
Moline to Pearson Intl flights
O'Hare Intl to Hamilton flights
O'Hare Intl to Thunder Bay flights
Midway to Thunder Bay flights
Peoria to Pierre Elliott Trudeau Intl flights
Champaign to Pearson Intl flights
Bloomington to Pierre Elliott Trudeau Intl flights
Bloomington to Ottawa flights
O'Hare Intl to Kingston flights
Evansville to Pearson Intl flights
Evansville to Pierre Elliott Trudeau Intl flights
Springfield to Pearson Intl flights
Dubuque to Pearson Intl flights

Top airline flying from Chicago to London

Discover the top airline that operate flights from Chicago to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$608Average$780FlexibilityNo cancel feeOn-time67%
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.
View all available airlines