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Cheap flights from Chicago to London, ON from C$ 419

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 17/7. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YXU
21 Jul — 28 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chicago to London

Enter your travel dates to find the best prices.

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 21 June 2026.

Tue 25/82:41 p.m.
ORD
-
YXU
2 stops37h 39m
Multiple Airlines
Thu 3/98:40 p.m.
YXU
-
ORD
1 stop21h 00m
Multiple Airlines
Deal found 19/6C$ 740
Tue 25/85:30 p.m.
ORD
-
YXU
1 stop10h 50m
WestJet
Thu 3/98:40 p.m.
YXU
-
ORD
1 stop21h 00m
WestJet
Deal found 19/6C$ 791
Fri 10/75:30 p.m.
ORD
-
YXU
1 stop10h 50m
Multiple Airlines
Thu 16/78:40 p.m.
YXU
-
ORD
2 stops25h 12m
Multiple Airlines
Deal found 19/6C$ 908
Wed 5/85:30 p.m.
ORD
-
YXU
1 stop10h 50m
WestJet
Wed 12/86:10 a.m.
YXU
-
ORD
1 stop11h 30m
WestJet
Deal found 21/6C$ 913
Sat 11/75:30 p.m.
ORD
-
YXU
1 stop10h 50m
Multiple Airlines
Sat 18/75:55 p.m.
YXU
-
ORD
2 stops27h 57m
Multiple Airlines
Deal found 19/6C$ 938
Sat 11/75:30 p.m.
ORD
-
YXU
1 stop10h 50m
WestJet
Wed 15/76:10 a.m.
YXU
-
ORD
1 stop11h 30m
WestJet
Deal found 19/6C$ 942
Sun 6/95:30 p.m.
ORD
-
YXU
1 stop10h 50m
Multiple Airlines
Mon 14/95:55 p.m.
YXU
-
ORD
2 stops26h 49m
Multiple Airlines
Deal found 18/6C$ 947
Sat 11/75:30 p.m.
ORD
-
YXU
1 stop10h 50m
Multiple Airlines
Fri 17/78:40 p.m.
YXU
-
ORD
2 stops25h 12m
Multiple Airlines
Deal found 19/6C$ 968
Sat 19/92:15 p.m.
ORD
-
YXU
1 stop6h 25m
Air Canada
Tue 22/93:30 p.m.
YXU
-
ORD
1 stop5h 18m
Air Canada
Deal found 20/6C$ 969
Sat 11/75:30 p.m.
ORD
-
YXU
1 stop10h 50m
WestJet
Fri 17/78:40 p.m.
YXU
-
ORD
1 stop21h 00m
WestJet
Deal found 19/6C$ 985

Find 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 21 June 2026.

Round-trip from

C$ 740

One-way from

C$ 419
WestJet
  • WestJet
  • 25/8-3/9
  • 3 total stops
  • 58h 39m total
  • Chicago to London
Search Deals
17/7
  • 17/7
  • 2 total stops
  • 30h 23m total
  • Chicago to London
Search Deals

Cheapflights Fare Finder

 
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 629,999 searches. Data last updated 21 June 2026.
Use the filters below to find and compare flights from Chicago to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Wed 5/8

5:30 p.m.-5:20 a.m.

1 stop10h 50m

London

Wed 12/8

6:10 a.m.-4:40 p.m.

1 stop11h 30m

C$ 913

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 19/9

2:15 p.m.-9:40 p.m.

1 stop6h 25m

London

Tue 22/9

3:30 p.m.-7:48 p.m.

1 stop5h 18m

C$ 969

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 18/9

9:50 a.m.-2:55 p.m.

1 stop4h 05m

London

Tue 22/9

5:40 a.m.-2:52 p.m.

2 stops10h 12m

C$ 982

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Wed 5/8

5:30 p.m.-5:20 a.m.

1 stop10h 50m

London

Wed 12/8

6:10 a.m.-5:37 a.m.

2 stops24h 27m

C$ 993
Quickest round-trip

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 9/7

2:15 p.m.-8:32 p.m.

1 stop5h 17m

London

Fri 17/7

10:05 a.m.-2:55 p.m.

1 stop5h 50m

C$ 1,019

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 11/7

5:30 p.m.-5:20 a.m.

1 stop10h 50m

London

Sun 19/7

2:40 p.m.-4:40 p.m.

2 stops27h 00m

C$ 1,020
Cheapest one-way

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 17/7

9:57 p.m.-5:20 a.m.

2 stops30h 23m

C$ 419

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Wed 5/8

7:15 a.m.-4:45 p.m.

3 stops32h 30m

C$ 437
Quickest one-way

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 17/7

3:45 p.m.-8:32 p.m.

1 stop3h 47m

C$ 464

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Wed 5/8

9:50 a.m.-2:50 p.m.

1 stop4h 00m

C$ 467

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/6

Showing 1-10 of 15 resultsSorted by cheapest first
1
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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.

Cheapflights Insights

Everything you need to know about your flight from Chicago 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 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?

    Most people fly into London (YXU) if they book a flight to London from Chicago. On average, London has 0 inbound flights from Chicago per day from 0 airlines. London is conveniently located just 8.6 km from London’s city centre.

  • How long is the flight from Chicago to London, Ontario?

    WestJet and Air Canada can get you from Chicago to London, Ontario in just under 6h 25m. Your travel time can differ by up to 4h 25m. There are 565 km between Chicago and London, Ontario. Both multi-stop and direct flights can be found to your destination and back.

  • 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

Travelling to a place near London?

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

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Why should you use Cheapflights to find cheap flight tickets from Chicago to London?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Chicago.

Can Cheapflights find flights from Chicago to London with no change fees?

Certainly. Search results for flights to London from Chicago 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 Chicago to London become cheaper?

Yes! Start tracking prices for Chicago to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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