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$78+ Cheap flights from Los Angeles (LAX) to Ontario

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YYZ
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Los Angeles to Ontario

Keep the following information in mind while searching for Los Angeles to Ontario flight deals. Data was last updated May 1, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$172
(Kiwi.com)

One-way from

$78
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$341

Good round-trip deal

$180 or less

Good one-way deal

$123 or less
Provider with most accurate pricing for Los Angeles-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Toronto (YTO) flights.
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From Los Angeles to Ontario
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One-way flight from Los Angeles to Ontario
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Highest demand for flights based on searches. 9% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Los Angeles to Ontario.
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Price to beat on a one-way flight from Los Angeles to Ontario.
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Find flight deals from Los Angeles to Ontario

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 May 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/206:05 pmLAX - YYZ
1 stop9h 07mWestJet
Sun 8/248:00 amYYZ - LAX
1 stop9h 12mWestJet
Deal found 4/29$176
This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/76:05 pmLAX - YYZ
1 stop9h 07mMultiple Airlines
Tue 6/1010:40 amYYZ - LAX
Nonstop5h 25mMultiple Airlines
Deal found 4/29$205
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/112:00 pmLAX - YUL
1 stop7h 37mMultiple Airlines
Tue 7/227:00 amYUL - LAX
2 stops16h 23mMultiple Airlines
Deal found 4/28$207
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/112:00 pmLAX - YUL
1 stop7h 37mPorter Airlines
Mon 7/216:45 amYUL - LAX
1 stop9h 15mPorter Airlines
Deal found 4/28$210
This Trip.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/33:00 pmLAX - YOW
2 stops11h 25mWestJet
Sat 8/96:10 amYOW - LAX
2 stops11h 02mWestJet
Deal found 4/30$225
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1512:35 pmLAX - YUL
1 stop15h 33mWestJet
Thu 7/247:00 amYUL - LAX
1 stop10h 12mWestJet
Deal found 4/29$249
This Trip.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2911:40 amLAX - YKF
1 stop10h 06mWestJet
Sun 6/16:00 amYKF - LAX
1 stop11h 12mWestJet
Deal found 4/29$261
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/182:00 pmLAX - YOW
1 stop7h 21mMultiple Airlines
Tue 8/512:20 pmYOW - LAX
2 stops11h 03mMultiple Airlines
Deal found 4/30$265
This Trip.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2711:40 amLAX - YHM
1 stop10h 01mWestJet
Thu 5/296:00 amYHM - LAX
1 stop11h 12mWestJet
Deal found 4/30$277
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1611:45 pmLAX - YYZ
1 stop8h 06mAmerican Airlines
Sat 5/241:15 pmYYZ - LAX
1 stop12h 27mAmerican Airlines
Deal found 4/30$278
This Air Canada deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2110:50 pmLAX - YOW
1 stop12h 14mAir Canada
Sun 8/242:25 pmYOW - LAX
1 stop10h 10mAir Canada
Deal found 4/30$286
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1812:08 amLAX - YOW
1 stop13h 58mUnited Airlines
Thu 8/75:15 amYOW - LAX
1 stop8h 15mUnited Airlines
Deal found 4/30$292

Cheapflights Fare Finder

Customize your flight search to find flights from Los Angeles 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, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
Use the filters below to find and compare flights from Los Angeles to Ontario that are best for you.

Fly from

Los Angeles

Fly to

Ontario

Route

Depart

Return

Price

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Fri 7/18

11:25 am-12:33 am

1 stop10h 08m

Toronto Pearson Intl

Thu 7/24

8:00 am-6:10 pm

2 stops13h 10m

$177

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Sat 6/7

11:40 am-12:33 am

2 stops9h 53m

Toronto Pearson Intl

Tue 6/10

10:40 am-1:05 pm

Nonstop5h 25m

$205

Los AngelesMontreal

LAX - YUL

LAXYUL

Los Angeles

Fri 7/11

2:00 pm-12:37 am

1 stop7h 37m

Montreal Pierre Elliott Trudeau Intl

Tue 7/22

7:00 am-8:23 pm

2 stops16h 23m

$207

Los AngelesMontreal

LAX - YUL

LAXYUL

Los Angeles

Fri 7/11

2:00 pm-12:37 am

1 stop7h 37m

Montreal Pierre Elliott Trudeau Intl

Mon 7/21

6:45 am-1:00 pm

1 stop9h 15m

$210

Los AngelesOttawa

LAX - YOW

LAXYOW

Los Angeles

Sun 8/3

3:00 pm-5:25 am

2 stops11h 25m

Ottawa

Sat 8/9

6:10 am-2:12 pm

2 stops11h 02m

$225

Los AngelesMontreal

LAX - YUL

LAXYUL

Los Angeles

Tue 7/15

12:35 pm-7:08 am

1 stop15h 33m

Montreal Pierre Elliott Trudeau Intl

Thu 7/24

7:00 am-2:12 pm

1 stop10h 12m

$249

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Sat 6/14

1:39 pm-6:56 am

1 stop14h 17m

Toronto Pearson Intl

Sat 6/21

8:30 am-10:30 am

Nonstop5h 00m

$252

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Thu 5/29

1:10 pm-9:03 pm

Nonstop4h 53m

Toronto Pearson Intl

Sun 6/1

9:45 am-12:10 pm

Nonstop5h 25m

$255

Los AngelesToronto

LAX - YKF

LAXYKF

Los Angeles

Thu 5/29

11:40 am-12:46 am

1 stop10h 06m

Toronto Region of Waterloo Intl

Sun 6/1

6:00 am-2:12 pm

1 stop11h 12m

$261

Los AngelesOttawa

LAX - YOW

LAXYOW

Los Angeles

Fri 7/18

2:00 pm-12:21 am

1 stop7h 21m

Ottawa

Tue 8/5

12:20 pm-8:23 pm

2 stops11h 03m

$265

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 60 results
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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.
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

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 $243). Flying from Los Angeles to Region of Ontario in July is currently the most expensive (average of $359). 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?

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 May 1, 2025.

When flying from Los Angeles to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated May 1, 2025.
To help decide which airline to fly from Los Angeles to Ontario, see what other customers have to say about Alaska Airlines, Porter Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Porter Airlines
8.0
Very good
285 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Air Transat
7.8
Good
385 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Los Angeles to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    If you book a flight to Ontario from Los Angeles, you will be flying from Los Angeles, which is the city’s only airport. Los Angeles (LAX) is located 9.4 mi from the center of Los Angeles.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $78. However, be on the lookout for offers from United Airlines and Porter Airlines, as they are both options that can get you from Los Angeles to Region of Ontario for a low price.

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

    While some choose either Los Angeles - Montreal Pierre Elliott Trudeau Intl or Los Angeles - Toronto Island, Los Angeles - Toronto Pearson Intl is the most popular route from Los Angeles to Region of Ontario.

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

    Before booking your flight to Region of Ontario from Los Angeles, check out the most reliable airlines to get you to your destination on time: Brussels Airlines (100%), Austrian Airlines (83%), Porter Airlines( 76%).

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

    While on average a flight from Los Angeles to Region of Ontario is generally $858, our data shows the cheapest flight currently is $69. When looking at the most popular route, (Los Angeles - Toronto Pearson Intl), you can expect to pay $162 for that flight.

  • 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 $243). Flying from Los Angeles to Region of Ontario in July is currently the most expensive (average of $359). 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.

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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.
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Top 7 airlines flying from Los Angeles to Ontario

Discover the top 7 airlines that operate flights from Los Angeles to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$128Average$382FlexibilityNo cancel feeOn-time71%
Porter AirlinesCheapest$134Average$349FlexibilityNo cancel feeOn-time52%
WestJetCheapest$137Average$343FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$142Average$501FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$144Average$391FlexibilityNo cancel feeOn-time69%
DeltaCheapest$153Average$403FlexibilityNo cancel feeOn-timeN/A
Air TransatCheapest$186Average$375FlexibilityNo cancel feeOn-time50%

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