HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$186+ Cheap flights from Illinois 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YXU
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois 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 Illinois to London

Keep the following information in mind while searching for Illinois to London flight deals. Data was last updated September 15, 2025.

Round-trip from

$390
(Kiwi.com)

One-way from

$186
(Kiwi.com)
From Illinois to London
Search Deals
One-way flight from Illinois to London
Search Deals

Find flight deals from Illinois to London

Cheapest flights from Illinois to London
Explore the most affordable flight options available from Illinois to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/95:30 pmORD - YXU
1 stop10h 42mMultiple Airlines
Wed 10/156:00 amYXU - ORD
2 stops31h 31mMultiple Airlines
Deal found 9/15$390
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:26 pmORD - YXU
2 stops28h 46mMultiple Airlines
Thu 11/68:10 pmYXU - ORD
1 stop18h 25mMultiple Airlines
Deal found 9/15$464
This Mytrip deal was found by Cheapflights users on 9/14. 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.
Wed 10/297:43 pmORD - YXU
3 stops46h 29mMultiple Airlines
Wed 11/58:10 pmYXU - ORD
3 stops23h 10mMultiple Airlines
Deal found 9/14$538
This Air Canada deal was found by Cheapflights users on 9/14. 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 10/293:55 pmORD - YXU
1 stop4h 26mAir Canada
Wed 11/59:25 amYXU - ORD
1 stop4h 36mAir Canada
Deal found 9/14$589
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/97:35 amORD - YXU
2 stops34h 37mMultiple Airlines
Sun 11/168:10 pmYXU - ORD
1 stop18h 25mMultiple Airlines
Deal found 9/14$597
This Air Canada deal was found by Cheapflights users on 9/15. 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.
Thu 10/3010:00 amORD - YXU
1 stop6h 06mAir Canada
Thu 11/69:25 amYXU - ORD
1 stop4h 36mAir Canada
Deal found 9/15$600
This Air Canada deal was found by Cheapflights users on 9/15. 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.
Thu 10/99:55 amORD - YXU
1 stop4h 07mAir Canada
Wed 10/159:55 amYXU - ORD
1 stop6h 09mAir Canada
Deal found 9/15$629
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/2910:00 amORD - YXU
1 stop6h 06mUnited Airlines
Wed 11/55:45 amYXU - ORD
1 stop5h 20mUnited Airlines
Deal found 9/14$665

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Illinois to London that are best for you.

Fly from

Illinois

Fly to

London

Route

Depart

Return

Price

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/9

5:30 pm-5:12 am

1 stop10h 42m

London

Wed 10/15

6:00 am-12:31 pm

2 stops31h 31m

$390

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/30

1:26 pm-7:12 pm

2 stops28h 46m

London

Thu 11/6

8:10 pm-1:35 pm

1 stop18h 25m

$464

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Wed 10/29

7:43 pm-7:12 pm

3 stops46h 29m

London

Wed 11/5

8:10 pm-6:20 pm

3 stops23h 10m

$538

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Wed 10/29

3:55 pm-9:21 pm

1 stop4h 26m

London

Wed 11/5

9:25 am-1:01 pm

1 stop4h 36m

$589

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sun 11/9

10:00 am-5:05 pm

1 stop6h 05m

London

Sun 11/16

5:45 am-9:13 am

1 stop4h 28m

$589

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/30

10:00 am-5:06 pm

1 stop6h 06m

London

Thu 11/6

9:25 am-1:01 pm

1 stop4h 36m

$600

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/9

9:55 am-3:02 pm

1 stop4h 07m

London

Wed 10/15

9:55 am-3:04 pm

1 stop6h 09m

$629

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Wed 10/29

10:00 am-5:06 pm

1 stop6h 06m

London

Wed 11/5

5:45 am-10:05 am

1 stop5h 20m

$665

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/30

10:00 am-5:06 pm

1 stop6h 06m

London

Thu 11/6

5:45 am-9:13 am

1 stop4h 28m

$665

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Wed 10/15

8:17 pm-5:12 am

3 stops31h 55m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 16 results
1
2

Best time to book a flight from Illinois to London

Have a flexible travel schedule? Discover the best time to fly to London from Illinois 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 Illinois to London
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois?

    London (YXU), located 5.3 mi from the city center, is the airport you fly into when you book flights from Illinois to London.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Grand Bend

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 Illinois to London

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Pearson Intl flights
LaGuardia to Pearson Intl flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
John F Kennedy Intl to Pearson Intl flights
Newark to Toronto Island flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Los Angeles to Pearson Intl flights
Newark to Pierre Elliott Trudeau Intl flights
Dallas/Fort Worth to Pearson Intl flights
O'Hare Intl to Pearson Intl flights
Boston to Pearson Intl flights
Reagan-National to Pearson Intl flights
San Francisco to Pearson Intl flights
Dulles Intl to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Seattle to Pearson Intl flights
Boston to Toronto Island flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Hobby to Pearson Intl flights
Dulles Intl to Toronto Island flights
Atlanta to Pearson Intl flights
Boston to Pierre Elliott Trudeau Intl flights
George Bush Intcntl to Pearson Intl flights
Minneapolis to Pearson Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
Fort Lauderdale to Pierre Elliott Trudeau Intl flights
Philadelphia to Pearson Intl flights
Midway to Toronto Island flights
Minneapolis to Pierre Elliott Trudeau Intl flights
Baltimore to Pearson Intl flights
Fort Lauderdale to Pearson Intl flights
Philadelphia to Pierre Elliott Trudeau Intl flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
Seattle to Pierre Elliott Trudeau Intl flights
Sky Harbor Intl to Pearson Intl flights
Raleigh to Pearson Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
John F Kennedy Intl to Toronto Island flights
Los Angeles to Toronto Island flights
Orlando to Pierre Elliott Trudeau Intl flights
Nashville to Pearson Intl flights
Miami to Pearson Intl flights
Miami to Pierre Elliott Trudeau Intl flights
Midway to Pearson Intl flights
Orlando to Pearson Intl flights
Atlanta to Pierre Elliott Trudeau Intl flights
Raleigh to Pierre Elliott Trudeau Intl flights
Cincinnati to Pearson Intl flights

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.