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Cheap flights from London, ON to Chicago from C$ 314

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 22/6. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — CHI
17 Jun — 24 Jun1
1 adult

Cheap flight deals from London to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Chicago (CHI). 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 12 June 2025.

Round-trip from

C$ 567

One-way from

C$ 314
Air Canada
  • Air Canada
  • 23/7-30/7
  • 2 total stops
  • 11h 01m total
  • London to Chicago
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Air Canada
  • Air Canada
  • 22/6
  • 1 total stop
  • 3h 54m total
  • London to Chicago
Search Deals

Find flight deals from London to Chicago

Cheapest flights from London to Chicago
Explore the most affordable flight options available from London to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Wed 23/73:40 p.m.YXU - ORD
1 stop4h 49mAir Canada
Wed 30/79:55 a.m.ORD - YXU
1 stop6h 12mAir Canada
Deal found 10/6C$ 567
Wed 23/79:45 p.m.YXU - ORD
2 stops19h 59mMultiple Airlines
Wed 30/75:30 p.m.ORD - YXU
1 stop10h 44mMultiple Airlines
Deal found 10/6C$ 630
Wed 23/79:55 a.m.YXU - ORD
2 stops7h 57mUnited Airlines
Wed 30/710:50 a.m.ORD - YXU
2 stops9h 37mUnited Airlines
Deal found 10/6C$ 654
Wed 23/78:00 p.m.YXU - MDW
3 stops21h 24mMultiple Airlines
Wed 30/79:40 a.m.MDW - YXU
3 stops18h 34mMultiple Airlines
Deal found 10/6C$ 1,031
Wed 23/76:00 a.m.YXU - MDW
2 stops12h 39mWestJet
Wed 30/712:43 p.m.MDW - YXU
2 stops15h 31mWestJet
Deal found 10/6C$ 2,337

Cheapflights Fare Finder

Customize your flight search to find flights from London to Chicago 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 12 June 2025.
Use the filters below to find and compare flights from London to Chicago that are best for you.

Fly from

London

Fly to

Chicago

Route

Depart

Return

Price

LondonChicago

YXU - ORD

YXUORD

London

Wed 23/7

3:40 p.m.-7:29 p.m.

1 stop4h 49m

Chicago O'Hare Intl

Wed 30/7

9:55 a.m.-5:07 p.m.

1 stop6h 12m

C$ 567

LondonChicago

YXU - ORD

YXUORD

London

Wed 23/7

9:45 p.m.-4:44 p.m.

2 stops19h 59m

Chicago O'Hare Intl

Wed 30/7

5:30 p.m.-5:14 a.m.

1 stop10h 44m

C$ 630

LondonChicago

YXU - ORD

YXUORD

London

Wed 23/7

9:55 a.m.-4:52 p.m.

2 stops7h 57m

Chicago O'Hare Intl

Wed 30/7

10:50 a.m.-9:27 p.m.

2 stops9h 37m

C$ 654

LondonChicago

YXU - MDW

YXUMDW

London

Wed 23/7

8:00 p.m.-4:24 p.m.

3 stops21h 24m

Chicago Midway

Wed 30/7

9:40 a.m.-5:14 a.m.

3 stops18h 34m

C$ 1,031

LondonChicago

YXU - MDW

YXUMDW

London

Wed 23/7

6:00 a.m.-5:39 p.m.

2 stops12h 39m

Chicago Midway

Wed 30/7

12:43 p.m.-5:14 a.m.

2 stops15h 31m

C$ 2,337

LondonChicago

YXU - ORD

YXUORD

London

Sun 22/6

6:15 a.m.-9:09 a.m.

1 stop3h 54m

C$ 314

LondonChicago

YXU - ORD

YXUORD

London

Fri 25/7

6:00 a.m.-2:13 p.m.

3 stops33h 13m

C$ 316

LondonChicago

YXU - ORD

YXUORD

London

Sun 22/6

6:15 a.m.-9:09 a.m.

1 stop3h 54m

C$ 349

LondonChicago

YXU - MDW

YXUMDW

London

Sat 26/7

6:00 a.m.-7:41 p.m.

2 stops38h 41m

C$ 682

LondonChicago

YXU - MDW

YXUMDW

London

Fri 25/7

8:00 p.m.-5:10 p.m.

3 stops22h 10m

C$ 744

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Best time to book a flight from London to Chicago

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

What is the cheapest month to book a flight from London, Ontario to Chicago?

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

Rainfall in Chicago by month

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

In terms of precipitation, rainfall in Chicago ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago when rainfall is around 43.0 mm.

Temperature in Chicago by month

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

If weather is an important factor for your trip to Chicago, 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated 12 June 2025.
Get a feel of what it's like to fly with United Airlines, WestJet and Air Canada from London to Chicago by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,790 reviews
Check prices

Entertainment

7.0

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

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
8,790 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Entertainment

7.0

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

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
2,868 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Entertainment

7.0

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

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
9,531 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Entertainment

7.0

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

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 Chicago. 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?

    If you book a flight to Chicago from London, you will be flying from London, which is the city’s only airport. London (YXU) is located 8.6 km from the centre of London. There are 0 flights from London to Chicago per day from 0 different airlines.

  • What are the cheapest airlines flying from London, Ontario to Chicago round-trip?

    Our cheapest airline available from London, Ontario to Chicago is Air Canada. Our recent data shows that you can find tickets from as low as C$ 567 on this airline. Additional options worth looking into are United Airlines and WestJet, starting at C$ 654 and C$ 2,337 round-trip.

  • What are the cheapest airlines to fly from London, Ontario to Chicago one-way?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as C$ 314. However, be on the lookout for offers from United Airlines and WestJet, as they are both options that can get you from London, Ontario to Chicago for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to Chicago 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?

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

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See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from London to Chicago?

Deals for London to Chicago flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to Chicago from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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

Yes, Cheapflights offers price alerts on London to Chicago flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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