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Cheap flights from Chicago to London, ON from C$ 255

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 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YXU
4 Feb — 11 Feb1
1 adult

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 30 January 2025.

Round-trip from

C$ 493

One-way from

C$ 255
10/3-17/3
  • 10/3-17/3
  • 4 total stops
  • 45h 52m total
  • Chicago to London
Search Deals
18/2
  • 18/2
  • 3 total stops
  • 31h 17m total
  • Chicago 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 30 January 2025.

Mon 10/34:45 p.m.ORD - YXU
2 stops25h 28mMultiple Airlines
Mon 17/312:20 p.m.YXU - ORD
2 stops20h 24mMultiple Airlines
Deal found 30/1C$ 493
Sun 16/32:05 p.m.ORD - YXU
1 stop5h 15mAir Canada
Sun 23/39:55 a.m.YXU - ORD
1 stop5h 56mAir Canada
Deal found 30/1C$ 1,050
Sun 16/34:45 p.m.ORD - YXU
1 stop25h 28mWestJet
Sun 23/38:00 p.m.YXU - ORD
1 stop20h 56mWestJet
Deal found 29/1C$ 1,151
Sun 16/31:04 p.m.ORD - YXU
1 stop6h 16mUnited Airlines
Sun 23/39:55 a.m.YXU - ORD
2 stops8h 09mUnited Airlines
Deal found 29/1C$ 1,342

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 629,999 searches. Data last updated 30 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 10/3

4:45 p.m.-7:13 p.m.

2 stops25h 28m

London

Mon 17/3

12:20 p.m.-7:44 a.m.

2 stops20h 24m

C$ 493

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sun 16/3

2:05 p.m.-8:20 p.m.

1 stop5h 15m

London

Sun 23/3

9:55 a.m.-2:51 p.m.

1 stop5h 56m

C$ 1,050

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sun 16/3

4:45 p.m.-7:13 p.m.

1 stop25h 28m

London

Sun 23/3

8:00 p.m.-3:56 p.m.

1 stop20h 56m

C$ 1,151

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sun 16/3

1:04 p.m.-8:20 p.m.

1 stop6h 16m

London

Sun 23/3

9:55 a.m.-5:04 p.m.

2 stops8h 09m

C$ 1,342

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Tue 18/2

10:56 a.m.-7:13 p.m.

3 stops31h 17m

C$ 255

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Tue 18/2

11:35 a.m.-8:20 p.m.

2 stops7h 45m

C$ 528

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/1

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 month to book a flight from Chicago to London, Ontario?

Currently, October is the cheapest month in which you can book a flight from Chicago to London, Ontario (average of C$ 243). Flying from Chicago to London, Ontario in March is currently the most expensive (average of C$ 532). 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 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 70.0 - 100.0 mm per month. January is typically the wettest month, when rainfall can reach 100.0 mm. March is typically the driest time to visit London, Ontario when rainfall is around 70.0 mm.

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 20.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 C).

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 30 January 2025.
United Airlines
7.4
Good
8,906 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.7

Boarding

7.7

Reviews

1 / 20

8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

United Airlines
7.4
Good
8,906 reviews
United Airlines
7.4
Good
8,906 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.7

Boarding

7.7

Reviews

1 / 20

8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

WestJet
7.2
Good
2,817 reviews
United Airlines
7.4
Good
8,906 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.7

Boarding

7.7

Reviews

1 / 20

8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Air Canada
7.0
Good
8,641 reviews
United Airlines
7.4
Good
8,906 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.7

Boarding

7.7

Reviews

1 / 20

8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

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.

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

    According to our current data, Air Canada (C$ 1,050), WestJet (C$ 1,151), and United Airlines (C$ 1,342) offers the cheapest pricing from Chicago to London, Ontario.

  • 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.

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

    Currently, October is the cheapest month in which you can book a flight from Chicago to London, Ontario (average of C$ 243). Flying from Chicago to London, Ontario in March is currently the most expensive (average of C$ 532). 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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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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