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Cheap flights from London, Ontario to Los Angeles from $278

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London, Ontario to Los Angeles departing on 6/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Find the cheapest flights from London, Ontario to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
5:10 am - 12:47 pm
YXU
-
ONT
10h 37m
2 stops
Air Canada Logo
5:00 am - 5:32 pm
ONT
-
YXU
9h 32m
2 stops
$575Air Canada
Sat, Jun 13 - Sat, Jun 20
United Airlines Logo
5:40 am - 6:19 pm
YXU
-
ONT
15h 39m
2 stops
United Airlines Logo
5:00 am - 5:45 pm
ONT
-
YXU
9h 45m
2 stops
$587United Airlines
Thu, Aug 27 - Sun, Aug 30
Air Canada Logo
5:40 am - 10:58 pm
YXU
-
ONT
20h 18m
2 stops
Air Canada Logo
5:00 am - 5:45 pm
ONT
-
YXU
9h 45m
2 stops
$588Air Canada
Thu, Aug 27 - Sun, Aug 30
Air Canada Logo
5:40 am - 6:11 pm
YXU
-
ONT
15h 31m
2 stops
Air Canada Logo
5:00 am - 5:45 pm
ONT
-
YXU
9h 45m
2 stops
$593Air Canada
Tue, Aug 25 - Sat, Aug 29
Air Canada Logo
10:05 am - 6:11 pm
YXU
-
ONT
11h 06m
2 stops
Air Canada Logo
5:00 am - 5:43 pm
ONT
-
YXU
9h 43m
2 stops
$595Air Canada
Tue, Sep 15 - Sun, Sep 27
United Airlines Logo
5:10 am - 10:46 pm
YXU
-
ONT
20h 36m
2 stops
United Airlines Logo
6:30 am - 9:18 am
ONT
-
YXU
23h 48m
2 stops
$780United Airlines
Mon, Jun 8 - Mon, Jun 15
Air Canada Logo
12:20 pm - 8:36 pm
YXU
-
ONT
11h 16m
2 stops
Air Canada Logo
5:00 am - 5:33 pm
ONT
-
YXU
9h 33m
2 stops
$910Air Canada
Wed, May 13 - Wed, May 20
United Airlines Logo
10:05 am - 6:19 pm
YXU
-
ONT
11h 14m
2 stops
United Airlines Logo
5:00 am - 9:40 pm
ONT
-
YXU
13h 40m
3 stops
$921United Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
6:10 pm - 12:12 pm
YXU
-
ONT
21h 02m
3 stops
United Airlines Logo
6:30 am - 9:18 am
ONT
-
YXU
23h 48m
2 stops
$963United Airlines
Mon, Jun 8 - Mon, Jun 15
Air Canada Logo
12:20 pm - 8:36 pm
YXU
-
ONT
11h 16m
2 stops
Air Canada Logo
5:00 am - 5:33 pm
ONT
-
YXU
9h 33m
2 stops
$994Air Canada
Tue, May 19 - Fri, May 29

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WestJet flights from London, Ontario to Ontario

Our best WestJet deals on London, Ontario to Ontario flight tickets
WestJet
Jun 12
YXU2:40 pmLondon
35h 01m
3 stops
ONT10:41 pmOntario
Jun 19
ONT6:20 amOntario
20h 00m
3 stops
YXU5:20 amLondon
$1,048
WestJet
Jun 12
YXU2:40 pmLondon
35h 01m
3 stops
ONT10:41 pmOntario
Jun 19
ONT6:20 amOntario
20h 00m
2 stops
YXU5:20 amLondon
$1,055
WestJet
Jun 24
YXU6:10 amLondon
19h 31m
2 stops
ONT10:41 pmOntario
Jun 29
ONT6:20 amOntario
20h 00m
2 stops
YXU5:20 amLondon
$1,115

Air Canada flights from London, Ontario to Ontario

Our best Air Canada deals on London, Ontario to Ontario flight tickets
Air Canada
Jun 13
YXU5:10 amLondon
10h 37m
2 stops
ONT12:47 pmOntario
Jun 20
ONT5:00 amOntario
9h 32m
2 stops
YXU5:32 pmLondon
$575
Air Canada
Aug 27
YXU5:40 amLondon
20h 18m
2 stops
ONT10:58 pmOntario
Aug 30
ONT5:00 amOntario
9h 45m
2 stops
YXU5:45 pmLondon
$588
Air Canada
Aug 25
YXU5:40 amLondon
15h 31m
2 stops
ONT6:11 pmOntario
Aug 29
ONT5:00 amOntario
9h 45m
2 stops
YXU5:45 pmLondon
$593

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario to 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 April 30, 2026.
Use the filters below to find and compare flights from London, Ontario to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LondonOntario

YXU - ONT

YXUONT

London

Sat 6/13

5:10 am-12:47 pm

2 stops10h 37m

Ontario

Sat 6/20

5:00 am-5:32 pm

2 stops9h 32m

$575

LondonOntario

YXU - ONT

YXUONT

London

Thu 8/27

5:40 am-6:19 pm

2 stops15h 39m

Ontario

Sun 8/30

5:00 am-5:45 pm

2 stops9h 45m

$587

LondonOntario

YXU - ONT

YXUONT

London

Thu 8/27

5:40 am-10:58 pm

2 stops20h 18m

Ontario

Sun 8/30

5:00 am-5:45 pm

2 stops9h 45m

$588

LondonOntario

YXU - ONT

YXUONT

London

Tue 8/25

5:40 am-6:11 pm

2 stops15h 31m

Ontario

Sat 8/29

5:00 am-5:45 pm

2 stops9h 45m

$593

LondonOntario

YXU - ONT

YXUONT

London

Tue 9/15

10:05 am-6:11 pm

2 stops11h 06m

Ontario

Sun 9/27

5:00 am-5:43 pm

2 stops9h 43m

$595

LondonOntario

YXU - ONT

YXUONT

London

Mon 6/8

5:10 am-10:46 pm

2 stops20h 36m

Ontario

Mon 6/15

6:30 am-9:18 am

2 stops23h 48m

$780

LondonOntario

YXU - ONT

YXUONT

London

Wed 5/13

12:20 pm-8:36 pm

2 stops11h 16m

Ontario

Wed 5/20

5:00 am-5:33 pm

2 stops9h 33m

$910

LondonOntario

YXU - ONT

YXUONT

London

Tue 8/25

10:05 am-6:19 pm

2 stops11h 14m

Ontario

Sat 8/29

5:00 am-9:40 pm

3 stops13h 40m

$921

LondonOntario

YXU - ONT

YXUONT

London

Mon 6/8

6:10 pm-12:12 pm

3 stops21h 02m

Ontario

Mon 6/15

6:30 am-9:18 am

2 stops23h 48m

$963

LondonOntario

YXU - ONT

YXUONT

London

Tue 5/19

12:20 pm-8:36 pm

2 stops11h 16m

Ontario

Fri 5/29

5:00 am-5:33 pm

2 stops9h 33m

$994

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Los Angeles from

How to get the cheapest flight ticket from London, Ontario to 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 airline that flies from London to Ontario?

United Airlines is the most popular carrier operating from London to Ontario

What airlines fly to Ontario?

Air Canada, Porter Airlines and WestJet are the top three most popular airlines that fly to Ontario from London, Ontario according to our data. Air Canada is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from London, Ontario to Ontario

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

Cheap London, Ontario to Ontario (YXU to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London, Ontario to Ontario

Fastest flight time

15h 39m

Direct flights

None
The fastest flight from London, Ontario to Ontario takes 15h 39m
There are no direct flights from London, Ontario to Ontario. There are no popular flight routes from London, Ontario to Ontario.
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Frequently asked questions about flying from London, Ontario to Ontario

  • How far is London to Ontario by plane?

    There are 2043.3 mi between London and Ontario. Flights usually cover this in 15h 39m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from London Airport to Ontario Airport?

    Prices for flights from London Airport to Ontario Airport are updated daily.

  • How old do you have to be to fly from London Airport to Ontario 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 London Airport to Ontario Airport.

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

    The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

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 Ontario from London.

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

momondo does allow users to show only those flights to Ontario from London which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for London to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from London and alert you when they change.

An easier way to manage your Ontario trip

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