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Cheap flights from Chicago O'Hare Intl Airport to London from $318

This is the cheapest round-trip 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 9/11. 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

WestJet Logo
5:30 pm - 5:12 amORD-YXU
10h 42m1 stop
WestJet Logo
8:00 pm - 4:43 pmYXU-ORD
21h 43m1 stop
$318WestJet
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Thu, Sep 11 - Thu, Sep 18
Logo
5:30 pm - 5:12 amORD-YXU
10h 42m1 stop
Logo
8:00 pm - 7:50 pmYXU-ORD
24h 50m2 stops
$443
Find Deal
Thu, Sep 11 - Thu, Sep 18
Logo
5:30 pm - 5:12 amORD-YXU
10h 42m1 stop
Logo
6:00 am - 5:39 pmYXU-ORD
36h 39m3 stops
$473
Find Deal
Thu, Sep 11 - Thu, Sep 18
Logo
5:30 pm - 5:12 amORD-YXU
10h 42m1 stop
Logo
8:00 pm - 7:50 pmYXU-ORD
24h 50m2 stops
$486
Find Deal
Sat, Sep 13 - Sat, Sep 20
Logo
6:44 pm - 5:12 amORD-YXU
33h 28m3 stops
Logo
8:00 pm - 7:50 pmYXU-ORD
24h 50m2 stops
$509
Find Deal
Thu, Sep 11 - Thu, Sep 18
Air Canada Logo
9:55 am - 3:17 pmORD-YXU
4h 22m1 stop
Air Canada Logo
10:00 am - 3:04 pmYXU-ORD
6h 04m1 stop
$590Air Canada
Find Deal
Sat, Sep 13 - Sat, Sep 20
United Airlines Logo
3:50 pm - 9:27 pmORD-YXU
4h 37m1 stop
United Airlines Logo
6:10 am - 12:03 pmYXU-ORD
6h 53m1 stop
$687United Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
United Airlines Logo
10:43 am - 9:27 pmORD-YXU
9h 44m2 stops
United Airlines Logo
10:00 am - 3:48 pmYXU-ORD
6h 48m1 stop
$696United Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
Air Canada Logo
9:55 am - 5:07 pmORD-YXU
6h 12m1 stop
Air Canada Logo
6:15 am - 9:09 amYXU-ORD
3h 54m1 stop
$732Air Canada
Find Deal
Fri, Aug 15 - Mon, Aug 18
United Airlines Logo
6:00 am - 3:17 pmORD-YXU
8h 17m2 stops
United Airlines Logo
10:00 am - 6:30 pmYXU-ORD
9h 30m2 stops
$741United Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20

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
Sep 13
ORD9:55 amChicago O'Hare Intl
4h 22m
1 stop
YXU3:17 pmLondon
Sep 20
YXU10:00 amLondon
6h 04m
1 stop
ORD3:04 pmChicago O'Hare Intl
$590
Find similar
Air Canada
Aug 15
ORD9:55 amChicago O'Hare Intl
6h 12m
1 stop
YXU5:07 pmLondon
Aug 18
YXU6:15 amLondon
3h 54m
1 stop
ORD9:09 amChicago O'Hare Intl
$732
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
Sep 13
ORD3:50 pmChicago O'Hare Intl
4h 37m
1 stop
YXU9:27 pmLondon
Sep 20
YXU6:10 amLondon
6h 53m
1 stop
ORD12:03 pmChicago O'Hare Intl
$687
Find similar
United Airlines
Sep 13
ORD10:43 amChicago O'Hare Intl
9h 44m
2 stops
YXU9:27 pmLondon
Sep 20
YXU10:00 amLondon
6h 48m
1 stop
ORD3:48 pmChicago O'Hare Intl
$696
Find similar
United Airlines
Sep 13
ORD6:00 amChicago O'Hare Intl
8h 17m
2 stops
YXU3:17 pmLondon
Sep 20
YXU10:00 amLondon
9h 30m
2 stops
ORD6:30 pmChicago O'Hare Intl
$741
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 July 31, 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 9/11

5:30 pm-5:12 am

1 stop10h 42m

London

Thu 9/18

8:00 pm-4:43 pm

1 stop21h 43m

$318

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 9/11

5:30 pm-5:12 am

1 stop10h 42m

London

Thu 9/18

8:00 pm-7:50 pm

2 stops24h 50m

$443

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 9/11

5:30 pm-5:12 am

1 stop10h 42m

London

Thu 9/18

6:00 am-5:39 pm

3 stops36h 39m

$473

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 9/13

5:30 pm-5:12 am

1 stop10h 42m

London

Sat 9/20

8:00 pm-7:50 pm

2 stops24h 50m

$486

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 9/11

6:44 pm-5:12 am

3 stops33h 28m

London

Thu 9/18

8:00 pm-7:50 pm

2 stops24h 50m

$509

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 9/13

9:55 am-3:17 pm

1 stop4h 22m

London

Sat 9/20

10:00 am-3:04 pm

1 stop6h 04m

$590

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 9/13

3:50 pm-9:27 pm

1 stop4h 37m

London

Sat 9/20

6:10 am-12:03 pm

1 stop6h 53m

$687

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 9/13

10:43 am-9:27 pm

2 stops9h 44m

London

Sat 9/20

10:00 am-3:48 pm

1 stop6h 48m

$696

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 8/15

9:55 am-5:07 pm

1 stop6h 12m

London

Mon 8/18

6:15 am-9:09 am

1 stop3h 54m

$732

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 9/13

6:00 am-3:17 pm

2 stops8h 17m

London

Sat 9/20

10:00 am-6:30 pm

2 stops9h 30m

$741

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Best Price Found

$318

Fastest flight time

4h 22m

Direct flights

None

Airports in London, Ontario

1 airport
The best flight deal from Chicago O'Hare Intl Airport to London, Ontario found on momondo in the last 72 hours is $318
The fastest flight from Chicago O'Hare Intl Airport to London, Ontario takes 4h 22m
There are no direct flights from Chicago O'Hare Intl Airport to London, Ontario. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - London Airport.
There is 1 airport near London, Ontario: London (YXU)
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  • 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 22m, 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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