How long is the flight from Los Angeles to Region of Ontario?

Airlines like Porter Airlines, Air Canada, and United Airlines fly from Los Angeles to Region of Ontario in about 4h 43m. The time it takes to get you to your destination can typically vary by up to 9h 24m. The distance between Los Angeles and Region of Ontario is about 3492 km. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to fly from Los Angeles to Region of Ontario one-way?

C$ 95 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from C$ 123 and C$ 146, respectively.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

If weather is an important factor for your trip to Region of 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

What are the most popular routes from Los Angeles to Region of Ontario?

When deciding which route to take from Los Angeles to Region of Ontario consider Los Angeles - Toronto Pearson Intl, Los Angeles - Montreal Pierre Elliott Trudeau Intl or Los Angeles - Toronto Island as they are the most popular.

What are the cheapest flights from Los Angeles to Region of Ontario?

On average you can expect to pay C$ 789 for a flight from Los Angeles to Region of Ontario. The cheapest flight overall is C$ 243 while the most popular route, (Los Angeles - Toronto Pearson Intl) is currently priced at C$ 409.

What are the most reliable airlines from Los Angeles to Region of Ontario?

No one likes to see their flight delayed. When booking a flight from Los Angeles to Region of Ontario consider choosing Singapore Airlines (83%), Brussels Airlines (83%) or Austrian Airlines (82%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Los Angeles to Region of Ontario?

The most popular airlines flying from Los Angeles to Region of Ontario are Air Canada, Porter Airlines and United Airlines. Something to consider prior to booking your flight.

What airport do you fly from for flights from Los Angeles to Ontario?

Los Angeles (LAX), located 15.1 km from the city centre, is the airport you fly out of when you book flights from Los Angeles to Ontario.

Can I find deals for flights from Los Angeles to Ontario that include hotel bookings?

Yes. In addition to deals on Los Angeles to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Los Angeles to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Los Angeles to Ontario.

Can I find deals for business class flights from Los Angeles to Ontario?

Yes. Cheapflights offers flight deals from Los Angeles to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 220+ Cheap Flights from Los Angeles to Ontario

Cheap flight deals from Los Angeles to Ontario

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Los Angeles to Ontario
Explore the most affordable flight options available from Los Angeles to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 October 2026.

Thu 3/1212:31 p.m. -

1 stop15h 21m

Tue 8/129:50 a.m. -

1 stop16h 14m

Deal found 25/10C$ 401

Wed 25/111:35 p.m. -

Nonstop4h 43m

Tue 1/129:55 a.m. -

Nonstop5h 36m

Deal found 21/10C$ 403

Tue 1/126:36 p.m. -

1 stop24h 06m

Tue 8/129:50 a.m. -

1 stop16h 14m

Deal found 21/10C$ 406

Tue 1/121:35 p.m. -

Nonstop4h 45m

Tue 8/129:55 a.m. -

Nonstop5h 36m

Deal found 22/10C$ 409

Wed 25/111:35 p.m. -

Nonstop4h 43m

Wed 2/129:55 a.m. -

Nonstop5h 36m

Deal found 21/10C$ 413

Tue 1/121:35 p.m. -

Nonstop4h 45m

Wed 9/129:55 a.m. -

Nonstop5h 36m

Deal found 21/10C$ 416

Wed 2/121:35 p.m. -

Nonstop4h 45m

Tue 8/129:55 a.m. -

Nonstop5h 36m

Deal found 22/10C$ 420

Tue 1/121:35 p.m. -

Nonstop4h 45m

Fri 4/129:55 a.m. -

Nonstop5h 36m

Deal found 22/10C$ 422

Tue 8/126:40 p.m. -

1 stop24h 02m

Tue 15/1211:30 a.m. -

1 stop22h 49m

Deal found 23/10C$ 424

Mon 7/127:41 p.m. -

1 stop8h 11m

Mon 14/128:30 p.m. -

1 stop13h 49m

Deal found 23/10C$ 426

Fri 4/123:30 p.m. -

1 stop7h 10m

Tue 8/127:45 a.m. -

1 stop11h 56m

Deal found 22/10C$ 501

Fri 4/123:30 p.m. -

1 stop7h 10m

Mon 7/122:55 p.m. -

1 stop9h 44m

Deal found 23/10C$ 507

Best flights from Los Angeles to Ontario
Discover carefully curated flight deals from Los Angeles to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Sun 6/123:30 p.m. -

1 stop14h 07m

Sun 13/123:20 p.m. -

1 stop9h 14m

Deal found 21/10C$ 542

Sun 10/112:10 p.m. -

1 stop8h 30m

Sat 16/17:00 a.m. -

2 stops15h 10m

Deal found 25/10C$ 580

Tue 17/113:58 p.m. -

2 stops21h 07m

Sun 22/115:15 p.m. -

2 stops17h 18m

Deal found 22/10C$ 606

Fri 13/1110:59 p.m. -

1 stop9h 10m

Sun 22/1112:20 p.m. -

1 stop12h 15m

Deal found 23/10C$ 609

Thu 3/126:00 a.m. -

2 stops10h 27m

Fri 4/123:10 p.m. -

1 stop9h 10m

Deal found 22/10C$ 615

Sun 10/16:35 p.m. -

2 stops26h 05m

Sat 16/15:30 a.m. -

2 stops13h 40m

Deal found 25/10C$ 678

Sun 29/115:00 a.m. -

1 stop7h 02m

Tue 15/126:15 a.m. -

1 stop11h 06m

Deal found 22/10C$ 608

Fri 5/211:59 p.m. -

2 stops10h 12m

Mon 8/23:10 p.m. -

1 stop10h 14m

Deal found 22/10C$ 615

Fri 8/18:30 a.m. -

1 stop8h 26m

Wed 13/110:45 a.m. -

1 stop13h 54m

Deal found 21/10C$ 640

Tue 1/1212:30 p.m. -

1 stop24h 35m

Wed 9/125:15 p.m. -

2 stops18h 17m

Deal found 22/10C$ 679

Sun 14/310:45 p.m. -

1 stop8h 07m

Mon 22/33:00 p.m. -

1 stop9h 08m

Deal found 22/10C$ 622

Sun 6/127:41 p.m. -

3 stops19h 04m

Sun 13/129:15 a.m. -

2 stops15h 24m

Deal found 21/10C$ 679

Sun 6/1212:40 p.m. -

1 stop8h 19m

Sun 13/124:10 p.m. -

1 stop8h 08m

Deal found 22/10C$ 622

Fri 16/48:30 a.m. -

1 stop8h 04m

Mon 19/411:00 a.m. -

1 stop8h 18m

Deal found 22/10C$ 622

Tue 8/1211:30 a.m. -

1 stop7h 22m

Tue 15/123:20 p.m. -

1 stop9h 14m

Deal found 24/10C$ 754

Fri 27/1111:59 p.m. -

1 stop12h 01m

Fri 4/129:10 a.m. -

2 stops17h 41m

Deal found 25/10C$ 723

Sun 20/1212:41 p.m. -

1 stop8h 18m

Tue 29/126:30 a.m. -

1 stop8h 19m

Deal found 21/10C$ 622

Thu 12/118:30 a.m. -

1 stop10h 06m

Mon 16/1112:30 p.m. -

1 stop12h 09m

Deal found 21/10C$ 796

Thu 26/115:00 p.m. -

1 stop9h 35m

Thu 3/1210:00 a.m. -

2 stops40h 51m

Deal found 24/10C$ 741

Mon 16/1111:00 p.m. -

1 stop11h 11m

Tue 17/114:46 p.m. -

1 stop18h 50m

Deal found 25/10C$ 623

Mon 23/116:00 a.m. -

1 stop7h 42m

Wed 2/1210:45 a.m. -

1 stop13h 54m

Deal found 22/10C$ 777

Fri 4/1210:35 p.m. -

1 stop13h 32m

Tue 8/126:15 a.m. -

2 stops10h 41m

Deal found 23/10C$ 646

Fri 27/116:00 a.m. -

1 stop12h 56m

Wed 16/129:45 a.m. -

2 stops12h 39m

Deal found 23/10C$ 646

Fri 27/116:00 a.m. -

1 stop7h 42m

Tue 1/1212:30 p.m. -

1 stop12h 09m

Deal found 22/10C$ 793

Sat 5/1210:15 a.m. -

1 stop8h 41m

Tue 8/126:15 a.m. -

2 stops10h 41m

Deal found 23/10C$ 646

Thu 3/1212:25 a.m. -

1 stop6h 42m

Mon 7/1212:30 p.m. -

1 stop12h 09m

Deal found 22/10C$ 793

Thu 12/1112:15 p.m. -

1 stop8h 11m

Sun 15/114:10 p.m. -

1 stop9h 45m

Deal found 25/10C$ 655

Thu 4/311:54 p.m. -

1 stop7h 12m

Sun 7/312:30 p.m. -

1 stop12h 02m

Deal found 25/10C$ 826

Sun 8/1110:00 p.m. -

1 stop8h 14m

Wed 11/116:45 a.m. -

1 stop7h 44m

Deal found 25/10C$ 655

Wed 18/118:45 a.m. -

1 stop10h 11m

Wed 25/112:00 p.m. -

2 stops11h 55m

Deal found 21/10C$ 674

Find flight deals from Los Angeles to Ontario

Round-trip from	C$ 401
One-way from	C$ 220
Popular in	July
Cheapest in	January
Average price	C$ 723
Good round-trip deal	C$ 386 or less
Good one-way deal	C$ 340 or less

3/12-8/12
2 total stops
31h 35m total
Los Angeles to Ontario

Search Deals

Air Canada
21/11-31/12
1 total stop
7h 10m total
Los Angeles to Ontario

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (C$ 129 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 20 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a round-trip flight from Los Angeles to Ontario.

Search Deals

Price to beat on a one-way flight from Los Angeles to Ontario.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Los Angeles to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesOttawa

LAX Los Angeles - YOW Ottawa

LAXYOW

Los Angeles

Wed 21/4

12:30 p.m.-1:00 a.m.

1 stop9h 30m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 254

Los AngelesOttawa

LAX Los Angeles - YOW Ottawa

LAXYOW

Los Angeles

Sun 22/11

6:47 p.m.-2:09 p.m.

1 stop16h 22m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 261

Los AngelesOttawa

LAX Los Angeles - YOW Ottawa

LAXYOW

Los Angeles

Sat 21/11

3:30 p.m.-1:40 a.m.

1 stop7h 10m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 266

Los AngelesOttawa

LAX Los Angeles - YOW Ottawa

LAXYOW

Los Angeles

Wed 18/11

3:30 p.m.-1:40 a.m.

1 stop7h 10m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 266

Los AngelesLondon

LAX Los Angeles - YXU London

LAXYXU

Los Angeles

Sat 5/12

10:55 p.m.-2:42 p.m.

1 stop12h 47m

London

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 270

Los AngelesToronto

LAX Los Angeles - YTZ Toronto Island

LAXYTZ

Los Angeles

Wed 18/11

12:03 a.m.-3:00 p.m.

2 stops11h 57m

Toronto Island

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 279

Los AngelesToronto

LAX Los Angeles - YYZ Toronto Pearson Intl

LAXYYZ

Los Angeles

Fri 1/1

5:00 a.m.-3:02 p.m.

1 stop7h 02m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 282

Los AngelesToronto

LAX Los Angeles - YYZ Toronto Pearson Intl

LAXYYZ

Los Angeles

Fri 13/11

9:45 a.m.-10:57 p.m.

1 stop10h 12m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 287

Los AngelesToronto

LAX Los Angeles - YYZ Toronto Pearson Intl

LAXYYZ

Los Angeles

Sun 8/11

6:00 a.m.-6:45 p.m.

1 stop9h 45m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 287

Quickest round-trip

Los AngelesToronto

LAX Los Angeles - YTZ Toronto Island

LAXYTZ

Los Angeles

Fri 11/12

12:25 a.m.-10:07 a.m.

1 stop6h 42m

Toronto Island

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 291

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/10

Showing 1-10 of 58 resultsSorted by cheapest first

...

Best time to book a flight from Los Angeles to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Los Angeles with our price prediction graph.

LAX-YYZ

LAX-YOW

LAX-YXU

LAX-YTZ

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.

Cheapflights Insights

Everything you need to know about your flight from Los Angeles to Ontario

LAX-CAON

LAX-YYZ

LAX-YOW

LAX-YXU

LAX-YTZ

What is the cheapest month to book a flight from Los Angeles to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from Los Angeles to Region of Ontario (average of C$ 532). Flying from Los Angeles to Region of Ontario in July is currently the most expensive (average of C$ 828). 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.

What is the cheapest time of day to fly from LAX to ON?

When flying from Los Angeles to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 30% versus a flight in the morning.

How much does it cost to fly round-trip from Los Angeles to Region of Ontario?

Airfare is below average for this route at the moment.

Los Angeles to Region of Ontario flights typically cost between C$ 521 and C$ 1,021 in December.
The cheapest round-trip price found within the last 5 days was C$ 401 on Multiple Airlines (3 Dec-8 Dec).

How far ahead should I book a flight from Los Angeles to Region of Ontario?

The best time to book flights from Los Angeles to Region of Ontario is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from Los Angeles to Region of Ontario?

Travelers seeking maximum savings on their Los Angeles to Region of Ontario flight should consider departing on Sunday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ontario

Read through reviews of airlines operating flights from Los Angeles to Ontario, such as Porter Airlines,United Airlines, andWestJet. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

8.0

Very good

467 reviews

Check prices

Reviews

1 / 20

6.0

Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

Porter Airlines

8.0

Very good

467 reviews

Porter Airlines

8.0

Very good

467 reviews

Check prices

Reviews

1 / 20

6.0

Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

United Airlines

7.3

Good

10,438 reviews

Porter Airlines

8.0

Very good

467 reviews

Check prices

Reviews

1 / 20

6.0

Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

WestJet

7.2

Good

3,445 reviews

Porter Airlines

8.0

Very good

467 reviews

Check prices

Reviews

1 / 20

6.0

Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

Air Canada

7.1

Good

11,812 reviews

Porter Airlines

8.0

Very good

467 reviews

Check prices

Reviews

1 / 20

6.0

Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

American Airlines

7.0

Good

12,194 reviews

Porter Airlines

8.0

Very good

467 reviews

Check prices

Reviews

1 / 20

6.0

Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

Related info for your journey

What airport do you fly from for flights from Los Angeles to Ontario?
Los Angeles (LAX), located 15.1 km from the city centre, is the airport you fly out of when you book flights from Los Angeles to Ontario.
How long is the flight from Los Angeles to Region of Ontario?
Airlines like Porter Airlines, Air Canada, and United Airlines fly from Los Angeles to Region of Ontario in about 4h 43m. The time it takes to get you to your destination can typically vary by up to 9h 24m. The distance between Los Angeles and Region of Ontario is about 3492 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from Los Angeles to Region of Ontario one-way?
C$ 95 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from C$ 123 and C$ 146, respectively.
What are the most popular routes from Los Angeles to Region of Ontario?
When deciding which route to take from Los Angeles to Region of Ontario consider Los Angeles - Toronto Pearson Intl, Los Angeles - Montreal Pierre Elliott Trudeau Intl or Los Angeles - Toronto Island as they are the most popular.
What are the most reliable airlines from Los Angeles to Region of Ontario?
No one likes to see their flight delayed. When booking a flight from Los Angeles to Region of Ontario consider choosing Singapore Airlines (83%), Brussels Airlines (83%) or Austrian Airlines (82%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Los Angeles to Region of Ontario?
On average you can expect to pay C$ 789 for a flight from Los Angeles to Region of Ontario. The cheapest flight overall is C$ 243 while the most popular route, (Los Angeles - Toronto Pearson Intl) is currently priced at C$ 409.
Can I find deals for flights from Los Angeles to Ontario that include hotel bookings?
Yes. In addition to deals on Los Angeles to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Los Angeles to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Los Angeles to Ontario.
Can I find deals for business class flights from Los Angeles to Ontario?
Yes. Cheapflights offers flight deals from Los Angeles to Ontario 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 Los Angeles to Region of Ontario?
Currently, January is the cheapest month in which you can book a flight from Los Angeles to Region of Ontario (average of C$ 532). Flying from Los Angeles to Region of Ontario in July is currently the most expensive (average of C$ 828). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Los Angeles to Ontario

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Palm Springs to Edmonton flights

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Sacramento to Calgary flights

Los Angeles to Kelowna flights

Top 5 airlines flying from Los Angeles to Ontario

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	CheapestC$ 264	AverageC$ 868	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Porter Airlines	CheapestC$ 302	AverageC$ 669	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
WestJet	CheapestC$ 304	AverageC$ 499	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Air Canada	CheapestC$ 307	AverageC$ 765	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 521	AverageC$ 1,379	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Los Angeles to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Los Angeles to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Los Angeles to Ontario?

Millions of users choose and trust Cheapflights to book the best flight deals from Los Angeles to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Los Angeles to Ontario with no change fees?

Certainly. Search results for flights to Ontario from Los Angeles 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 Los Angeles to Ontario become cheaper?

Yes! Start tracking prices for Los Angeles to Ontario 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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Cheap flights from Los Angeles to Ontario from C$ 220

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Los Angeles to Ontario

Cheapest flights from Los Angeles to OntarioExplore the most affordable flight options available from Los Angeles to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 October 2026.

Explore the most affordable flight options available from Los Angeles to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 October 2026.

Best flights from Los Angeles to OntarioDiscover carefully curated flight deals from Los Angeles to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Discover carefully curated flight deals from Los Angeles to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Direct flights from Los Angeles to OntarioExplore direct flight options from Los Angeles to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 26 October 2026.

Explore direct flight options from Los Angeles to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 26 October 2026.

Last-minute flights from Los Angeles to OntarioDiscover last-minute flight deals from Los Angeles to Ontario. Data last updated 26 October 2026 and is based on user searches.

Discover last-minute flight deals from Los Angeles to Ontario. Data last updated 26 October 2026 and is based on user searches.

One-way flights from Los Angeles to OntarioSearch for one-way flight options from Los Angeles to Ontario. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

Search for one-way flight options from Los Angeles to Ontario. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

Find flight deals from Los Angeles to Ontario

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Los Angeles to Ontario that are best for you.

Best time to book a flight from Los Angeles to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Los Angeles with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Los Angeles to Region of Ontario?

What is the cheapest time of day to fly from LAX to ON?

Find hourly flight availability from Los Angeles to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 October 2026.

When flying from Los Angeles to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 30% versus a flight in the morning.

How much does it cost to fly round-trip from Los Angeles to Region of Ontario?

Airfare is below average for this route at the moment.

Los Angeles to Region of Ontario flights typically cost between C$ 521 and C$ 1,021 in December.The cheapest round-trip price found within the last 5 days was C$ 401 on Multiple Airlines (3 Dec-8 Dec).

How far ahead should I book a flight from Los Angeles to Region of Ontario?

The best time to book flights from Los Angeles to Region of Ontario is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from Los Angeles to Region of Ontario?

Use this chart to determine the cheapest time to fly round-trip from Los Angeles to Ontario. Price data was last updated on 24 October 2026.

Travelers seeking maximum savings on their Los Angeles to Region of Ontario flight should consider departing on Sunday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ontario

Read through reviews of airlines operating flights from Los Angeles to Ontario, such as Porter Airlines,United Airlines, andWestJet. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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What are the most reliable airlines from Los Angeles to Region of Ontario?

What are the cheapest flights from Los Angeles to Region of Ontario?

Can I find deals for flights from Los Angeles to Ontario that include hotel bookings?

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Can I find deals for business class flights from Los Angeles to Ontario?

What is the cheapest month to book a flight from Los Angeles to Region of Ontario?

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Alternative routes for Los Angeles to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.

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Los Angeles and Ontario flights

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Cheapest flights from Los Angeles to Ontario
Explore the most affordable flight options available from Los Angeles to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 October 2026.

Best flights from Los Angeles to Ontario
Discover carefully curated flight deals from Los Angeles to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Direct flights from Los Angeles to Ontario
Explore direct flight options from Los Angeles to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 26 October 2026.

Last-minute flights from Los Angeles to Ontario
Discover last-minute flight deals from Los Angeles to Ontario. Data last updated 26 October 2026 and is based on user searches.

One-way flights from Los Angeles to Ontario
Search for one-way flight options from Los Angeles to Ontario. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

Los Angeles to Region of Ontario flights typically cost between C$ 521 and C$ 1,021 in December.
The cheapest round-trip price found within the last 5 days was C$ 401 on Multiple Airlines (3 Dec-8 Dec).