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Cheap flights from Chicago O'Hare Intl Airport to London from $186

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to London departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to London

Cheap round-trip flights

Multiple Airlines Logo
5:30 pm - 5:12 amORD-YXU
10h 42m1 stop
Multiple Airlines Logo
6:00 am - 12:31 pmYXU-ORD
31h 31m2 stops
$390Multiple Airlines
Find Deal
Thu, Oct 9 - Wed, Oct 15
Multiple Airlines Logo
1:26 pm - 7:12 pmORD-YXU
28h 46m2 stops
Multiple Airlines Logo
8:10 pm - 1:35 pmYXU-ORD
18h 25m1 stop
$464Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Multiple Airlines Logo
5:30 pm - 5:12 amORD-YXU
10h 42m1 stop
Multiple Airlines Logo
6:00 am - 12:31 pmYXU-ORD
31h 31m3 stops
$501Multiple Airlines
Find Deal
Thu, Oct 9 - Wed, Oct 15
Multiple Airlines Logo
7:43 pm - 7:12 pmORD-YXU
46h 29m3 stops
Multiple Airlines Logo
8:10 pm - 6:20 pmYXU-ORD
23h 10m3 stops
$538Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Air Canada Logo
3:55 pm - 9:21 pmORD-YXU
4h 26m1 stop
Air Canada Logo
9:25 am - 1:01 pmYXU-ORD
4h 36m1 stop
$589Air Canada
Find Deal
Wed, Oct 29 - Wed, Nov 5
Air Canada Logo
10:00 am - 5:06 pmORD-YXU
6h 06m1 stop
Air Canada Logo
9:25 am - 1:01 pmYXU-ORD
4h 36m1 stop
$600Air Canada
Find Deal
Thu, Oct 30 - Thu, Nov 6
Air Canada Logo
9:55 am - 3:02 pmORD-YXU
4h 07m1 stop
Air Canada Logo
9:55 am - 3:04 pmYXU-ORD
6h 09m1 stop
$629Air Canada
Find Deal
Thu, Oct 9 - Wed, Oct 15
United Airlines Logo
10:00 am - 5:06 pmORD-YXU
6h 06m1 stop
United Airlines Logo
5:45 am - 10:05 amYXU-ORD
5h 20m1 stop
$665United Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
11:02 am - 9:21 pmORD-YXU
9h 19m2 stops
United Airlines Logo
5:40 pm - 10:05 pmYXU-ORD
5h 25m1 stop
$674United Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
11:02 am - 9:21 pmORD-YXU
9h 19m2 stops
United Airlines Logo
5:45 am - 2:40 pmYXU-ORD
9h 55m2 stops
$690United Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5

Air Canada flights from Chicago O'Hare Intl Airport to London, Ontario

Our best Air Canada deals on Chicago O'Hare Intl Airport to London, Ontario flight tickets
Air Canada
Oct 29
ORD3:55 pmChicago O'Hare Intl
4h 26m
1 stop
YXU9:21 pmLondon
Nov 5
YXU9:25 amLondon
4h 36m
1 stop
ORD1:01 pmChicago O'Hare Intl
$589
Find similar
Air Canada
Oct 30
ORD10:00 amChicago O'Hare Intl
6h 06m
1 stop
YXU5:06 pmLondon
Nov 6
YXU9:25 amLondon
4h 36m
1 stop
ORD1:01 pmChicago O'Hare Intl
$600
Find similar
Air Canada
Oct 9
ORD9:55 amChicago O'Hare Intl
4h 07m
1 stop
YXU3:02 pmLondon
Oct 15
YXU9:55 amLondon
6h 09m
1 stop
ORD3:04 pmChicago O'Hare Intl
$629
Find similar

United Airlines flights from Chicago O'Hare Intl Airport to London, Ontario

Our best United Airlines deals on Chicago O'Hare Intl Airport to London, Ontario flight tickets
United Airlines
Oct 29
ORD10:00 amChicago O'Hare Intl
6h 06m
1 stop
YXU5:06 pmLondon
Nov 5
YXU5:45 amLondon
5h 20m
1 stop
ORD10:05 amChicago O'Hare Intl
$665
Find similar
United Airlines
Oct 29
ORD11:02 amChicago O'Hare Intl
9h 19m
2 stops
YXU9:21 pmLondon
Nov 5
YXU5:40 pmLondon
5h 25m
1 stop
ORD10:05 pmChicago O'Hare Intl
$674
Find similar
United Airlines
Oct 29
ORD11:02 amChicago O'Hare Intl
9h 19m
2 stops
YXU9:21 pmLondon
Nov 5
YXU5:45 amLondon
9h 55m
2 stops
ORD2:40 pmChicago O'Hare Intl
$690
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to London, Ontario 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, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to London, Ontario that are best for you.

Fly from

Fly to

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

Thu 10/9

5:30 pm-5:12 am

1 stop10h 42m

London

Wed 10/15

6:00 am-12:31 pm

3 stops31h 31m

$501

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

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

Wed 10/29

11:02 am-9:21 pm

2 stops9h 19m

London

Wed 11/5

5:40 pm-10:05 pm

1 stop5h 25m

$674

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Wed 10/29

11:02 am-9:21 pm

2 stops9h 19m

London

Wed 11/5

5:45 am-2:40 pm

2 stops9h 55m

$690

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to London, Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to London, Ontario?

According to our data, Thursday is the cheapest day to fly to London, Ontario from Chicago O'Hare Intl Airport. The lowest ticket price found for a Thursday departure recently was $316. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to London, Ontario on Tuesday is $780.

What is the cheapest time of day to depart on your flight to London, Ontario?

In the morning is the cheapest time of day to fly from Chicago O'Hare Intl Airport to London, Ontario when you can find flight prices for as low as $587. Flying to London, Ontario in the morning is an ideal time because this is during off-peak travel hours. At noon is when there is more demand to fly to London, Ontario, so prices are often more expensive at around $764 per ticket.

When to book flights from Chicago O'Hare Intl Airport to London, Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to London, Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to London, Ontario (ORD to YXU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to London, Ontario

Direct flights

None
There are no direct flights from Chicago O'Hare Intl Airport to London, Ontario. There are no popular flight routes from Chicago O'Hare Intl Airport to London, Ontario.
Search flight deals

  • How far is Chicago O'Hare Intl to London by plane?

    The distance between Chicago O'Hare Intl and London is about 346.6 mi. Flights usually cover this in 4h 07m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to London Airport?

    Prices for flights from Chicago O'Hare Intl Airport to London Airport refresh daily.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to London Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to London Airport.

  • What documentation or ID do you need to fly to London Airport?

    The travel and health documents required for your trip to London Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near London?

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

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Chicago.

Can I find flights from Chicago to London with flexible booking policies on momondo?

All flight searches from Chicago to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Chicago to London?

momondo helps you find the best flight between Chicago and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Chicago to London right now. Can momondo alert me if prices change?

Price alerts on flights to London from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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