Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London, Ontario to Los Angeles from $310

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 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
6:10 pm - 12:22 pm
YXU
-
ONT
21h 12m
2 stops
Air Canada Logo
5:00 am - 5:33 pm
ONT
-
YXU
9h 33m
2 stops
$606Air Canada
Sun, May 3 - Sun, May 10
United Airlines Logo
5:40 am - 10:59 pm
YXU
-
ONT
20h 19m
2 stops
United Airlines Logo
7:00 am - 8:53 am
ONT
-
YXU
22h 53m
2 stops
$607United Airlines
Fri, May 1 - Fri, May 8
United Airlines Logo
9:30 am - 10:35 pm
YXU
-
ONT
16h 05m
2 stops
United Airlines Logo
7:00 am - 11:43 am
ONT
-
YXU
25h 43m
2 stops
$608United Airlines
Fri, May 1 - Fri, May 8
United Airlines Logo
9:30 am - 10:46 pm
YXU
-
ONT
16h 16m
2 stops
United Airlines Logo
6:30 am - 9:38 pm
ONT
-
YXU
12h 08m
2 stops
$618United Airlines
Mon, Jun 1 - Wed, Jun 3
United Airlines Logo
5:10 am - 10:31 pm
YXU
-
ONT
20h 21m
2 stops
United Airlines Logo
11:05 am - 5:04 pm
ONT
-
YXU
26h 59m
2 stops
$632United Airlines
Sun, Apr 12 - Sun, Apr 19
United Airlines Logo
5:40 am - 10:59 pm
YXU
-
ONT
20h 19m
2 stops
United Airlines Logo
5:00 am - 5:33 pm
ONT
-
YXU
9h 33m
2 stops
$640United Airlines
Sun, May 3 - Sun, May 10
United Airlines Logo
12:20 pm - 9:58 pm
YXU
-
ONT
12h 38m
2 stops
United Airlines Logo
10:43 am - 11:43 am
ONT
-
YXU
22h 00m
2 stops
$641United Airlines
Sat, May 2 - Sat, May 9
Air Canada Logo
12:20 pm - 8:36 pm
YXU
-
ONT
11h 16m
2 stops
Air Canada Logo
6:59 pm - 9:38 pm
ONT
-
YXU
23h 39m
2 stops
$661Air Canada
Fri, May 1 - Fri, May 8
United Airlines Logo
9:25 am - 5:52 pm
YXU
-
ONT
11h 27m
2 stops
United Airlines Logo
5:00 am - 8:53 am
ONT
-
YXU
24h 53m
2 stops
$755United Airlines
Thu, Apr 30 - Thu, May 7
United Airlines Logo
5:10 am - 10:31 pm
YXU
-
ONT
20h 21m
2 stops
United Airlines Logo
5:10 am - 9:19 pm
ONT
-
YXU
37h 09m
3 stops
$838United Airlines
Sun, Apr 12 - Sun, Apr 19

United Airlines flights from London, Ontario to Ontario

Our best United Airlines deals on London, Ontario to Ontario flight tickets
United Airlines
May 1
YXU5:40 amLondon
20h 19m
2 stops
ONT10:59 pmOntario
May 8
ONT7:00 amOntario
22h 53m
2 stops
YXU8:53 amLondon
$607
United Airlines
May 1
YXU9:30 amLondon
16h 05m
2 stops
ONT10:35 pmOntario
May 8
ONT7:00 amOntario
25h 43m
2 stops
YXU11:43 amLondon
$608
United Airlines
Jun 1
YXU9:30 amLondon
16h 16m
2 stops
ONT10:46 pmOntario
Jun 3
ONT6:30 amOntario
12h 08m
2 stops
YXU9:38 pmLondon
$618

Air Canada flights from London, Ontario to Ontario

Our best Air Canada deals on London, Ontario to Ontario flight tickets
Air Canada
May 3
YXU6:10 pmLondon
21h 12m
2 stops
ONT12:22 pmOntario
May 10
ONT5:00 amOntario
9h 33m
2 stops
YXU5:33 pmLondon
$606
Air Canada
May 1
YXU12:20 pmLondon
11h 16m
2 stops
ONT8:36 pmOntario
May 8
ONT6:59 pmOntario
23h 39m
2 stops
YXU9:38 pmLondon
$661
Air Canada
Apr 11
YXU5:10 amLondon
10h 28m
2 stops
ONT12:38 pmOntario
Apr 18
ONT5:10 amOntario
13h 09m
2 stops
YXU9:19 pmLondon
$921

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 March 20, 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

LondonOntario

YXU - ONT

YXUONT

London

Sun 5/3

6:10 pm-12:22 pm

2 stops21h 12m

Ontario

Sun 5/10

5:00 am-5:33 pm

2 stops9h 33m

$606

LondonOntario

YXU - ONT

YXUONT

London

Fri 5/1

5:40 am-10:59 pm

2 stops20h 19m

Ontario

Fri 5/8

7:00 am-8:53 am

2 stops22h 53m

$607

LondonOntario

YXU - ONT

YXUONT

London

Fri 5/1

9:30 am-10:35 pm

2 stops16h 05m

Ontario

Fri 5/8

7:00 am-11:43 am

2 stops25h 43m

$608
Quickest round-trip

LondonOntario

YXU - ONT

YXUONT

London

Mon 6/1

9:30 am-10:46 pm

2 stops16h 16m

Ontario

Wed 6/3

6:30 am-9:38 pm

2 stops12h 08m

$618

LondonOntario

YXU - ONT

YXUONT

London

Sun 4/12

5:10 am-10:31 pm

2 stops20h 21m

Ontario

Sun 4/19

11:05 am-5:04 pm

2 stops26h 59m

$632

LondonOntario

YXU - ONT

YXUONT

London

Sun 5/3

5:40 am-10:59 pm

2 stops20h 19m

Ontario

Sun 5/10

5:00 am-5:33 pm

2 stops9h 33m

$640

LondonOntario

YXU - ONT

YXUONT

London

Sat 5/2

12:20 pm-9:58 pm

2 stops12h 38m

Ontario

Sat 5/9

10:43 am-11:43 am

2 stops22h 00m

$641

LondonOntario

YXU - ONT

YXUONT

London

Fri 5/1

12:20 pm-8:36 pm

2 stops11h 16m

Ontario

Fri 5/8

6:59 pm-9:38 pm

2 stops23h 39m

$661

LondonOntario

YXU - ONT

YXUONT

London

Thu 4/30

9:25 am-5:52 pm

2 stops11h 27m

Ontario

Thu 5/7

5:00 am-8:53 am

2 stops24h 53m

$755

LondonOntario

YXU - ONT

YXUONT

London

Sun 4/12

5:10 am-10:31 pm

2 stops20h 21m

Ontario

Sun 4/19

5:10 am-9:19 pm

3 stops37h 09m

$838

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 and Air Canada are the most popular carriers 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

10h 38m

Direct flights

None
The fastest flight from London, Ontario to Ontario takes 10h 38m
There are no direct flights from London, Ontario to Ontario. There are no popular flight routes from London, Ontario to Ontario.
Search flight deals

  • How far is London to Ontario by plane?

    There are 2043.3 mi between London and Ontario. Flights usually cover this in 10h 38m, 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 4/19
Sun 4/26
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States