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$99+ 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YYZ
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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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 October 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/51:40 pmLAX - YYZ
Nonstop4h 43mPorter Airlines
Fri 12/1210:00 amYYZ - LAX
Nonstop5h 36mPorter Airlines
Deal found 10/26$252
This Trip.com deal was found by Cheapflights users on 10/27. 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 12/21:40 pmLAX - YYZ
Nonstop4h 43mPorter Airlines
Thu 12/410:00 amYYZ - LAX
Nonstop5h 36mPorter Airlines
Deal found 10/27$254
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Tue 12/21:40 pmLAX - YYZ
Nonstop4h 43mPorter Airlines
Sun 12/710:00 amYYZ - LAX
Nonstop5h 36mPorter Airlines
Deal found 10/28$255
This Vliegwinkel deal was found by Cheapflights users on 10/27. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:30 amLAX - YYZ
Nonstop4h 45mMultiple Airlines
Wed 12/310:00 amYYZ - LAX
Nonstop5h 36mMultiple Airlines
Deal found 10/27$257
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Thu 12/411:50 amLAX - YYZ
2 stops15h 08mMultiple Airlines
Mon 12/810:00 amYYZ - LAX
Nonstop5h 36mMultiple Airlines
Deal found 10/26$262
This Booking.com deal was found by Cheapflights users on 10/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:45 amLAX - YYZ
Nonstop4h 45mAir Canada
Wed 12/36:55 pmYYZ - LAX
Nonstop5h 33mAir Canada
Deal found 10/26$263
This Trip.com deal was found by Cheapflights users on 10/26. 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.
Fri 12/511:50 amLAX - YYZ
1 stop9h 48mMultiple Airlines
Fri 12/1210:00 amYYZ - LAX
Nonstop5h 36mMultiple Airlines
Deal found 10/26$265
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/2711:15 pmLAX - YYZ
1 stop11h 50mMultiple Airlines
Thu 12/410:00 amYYZ - LAX
Nonstop5h 36mMultiple Airlines
Deal found 10/28$266
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Thu 11/134:42 pmLAX - YTZ
1 stop23h 15mMultiple Airlines
Sun 11/169:15 amYTZ - LAX
1 stop26h 41mMultiple Airlines
Deal found 10/27$298
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2810:50 amLAX - YKF
2 stops15h 38mMultiple Airlines
Thu 12/47:05 amYKF - LAX
2 stops17h 03mMultiple Airlines
Deal found 10/28$308
This FlightHub deal was found by Cheapflights users on 10/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:00 amLAX - YOW
2 stops14h 42mWestJet
Mon 12/85:45 pmYOW - LAX
1 stop20h 42mWestJet
Deal found 10/28$313
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Sun 11/91:20 amLAX - YTZ
1 stop14h 37mMultiple Airlines
Fri 11/142:30 pmYTZ - LAX
1 stop21h 26mMultiple Airlines
Deal found 10/26$316

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 October 28, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$252
(Kiwi.com)

One-way from

$99
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$305

Good round-trip deal

$327 or less

Good one-way deal

$159 or less
Provider with most accurate pricing for Los Angeles-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Toronto (YTO) flights.
Search Deals
From Los Angeles to Ontario
Search Deals
One-way flight from Los Angeles to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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

 
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 October 28, 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 - YTZ

LAXYTZ

Los Angeles

Thu 11/13

4:42 pm-6:57 pm

1 stop23h 15m

Toronto Island

Sun 11/16

9:15 am-8:56 am

1 stop26h 41m

$298

Los AngelesToronto

LAX - YKF

LAXYKF

Los Angeles

Sun 11/30

10:50 am-5:28 am

2 stops15h 38m

Toronto Region of Waterloo Intl

Fri 12/5

7:05 am-10:03 pm

1 stop17h 58m

$340

Los AngelesToronto

LAX - YKF

LAXYKF

Los Angeles

Fri 1/9

7:00 am-5:28 am

1 stop19h 28m

Toronto Region of Waterloo Intl

Mon 1/12

6:20 am-11:00 am

2 stops31h 40m

$345

Los AngelesToronto

LAX - YKF

LAXYKF

Los Angeles

Wed 11/19

11:50 am-5:28 am

2 stops14h 38m

Toronto Region of Waterloo Intl

Sat 11/22

6:20 am-4:58 pm

1 stop13h 38m

$351

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Mon 11/10

10:30 pm-8:57 am

1 stop7h 27m

Toronto Pearson Intl

Sun 12/7

9:52 am-2:31 pm

1 stop7h 39m

$353

Los AngelesToronto

LAX - YTZ

LAXYTZ

Los Angeles

Tue 11/18

5:30 am-6:55 pm

1 stop10h 25m

Toronto Island

Sat 11/22

3:15 pm-10:05 am

2 stops21h 50m

$353

Los AngelesToronto

LAX - YKF

LAXYKF

Los Angeles

Fri 1/9

12:15 pm-5:28 am

1 stop14h 13m

Toronto Region of Waterloo Intl

Sun 1/11

7:05 am-4:58 pm

1 stop12h 53m

$356

Los AngelesHamilton

LAX - YHM

LAXYHM

Los Angeles

Thu 1/15

7:00 am-1:22 pm

1 stop27h 22m

Hamilton

Sun 1/18

6:10 pm-11:00 am

2 stops19h 50m

$358

Los AngelesToronto

LAX - YKF

LAXYKF

Los Angeles

Wed 11/26

10:50 am-5:28 am

2 stops15h 38m

Toronto Region of Waterloo Intl

Fri 12/5

7:05 am-10:03 pm

1 stop17h 58m

$358

Los AngelesHamilton

LAX - YHM

LAXYHM

Los Angeles

Thu 11/27

6:30 am-7:00 pm

1 stop9h 30m

Hamilton

Wed 12/3

8:15 am-4:29 pm

1 stop11h 14m

$371

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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, July is the cheapest month in which you can book a flight from Los Angeles to Region of Ontario (average of $91). Flying from Los Angeles to Region of Ontario in January is currently the most expensive (average of $141). 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 October 28, 2025.

It’s typically best to fly out from Los Angeles to Region of Ontario at noon. Doing so could potentially save you 29% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 December 16, 2024.

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

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 October 28, 2025.
Read reviews from past customers who have flown Porter Airlines, Delta, and United Airlines from Los Angeles to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
384 reviews

Food

7.6

Crew

8.6

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
384 reviews
Porter Airlines
8.0
Very good
384 reviews

Food

7.6

Crew

8.6

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Delta
7.9
Good
7,995 reviews
Porter Airlines
8.0
Very good
384 reviews

Food

7.6

Crew

8.6

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,996 reviews
Porter Airlines
8.0
Very good
384 reviews

Food

7.6

Crew

8.6

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
WestJet
7.2
Good
3,148 reviews
Porter Airlines
8.0
Very good
384 reviews

Food

7.6

Crew

8.6

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,370 reviews
Porter Airlines
8.0
Very good
384 reviews

Food

7.6

Crew

8.6

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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.

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

    There are many flights that can get you from Los Angeles to Region of Ontario in 7h 27m. Fly via WestJet, Delta, or United Airlines to get the fastest option. There are 2170 mi between Los Angeles and Region of Ontario. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as $129. However, be on the lookout for offers from WestJet and Air Canada, 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: Sun Country Air (100%), Brussels Airlines (91%), Austrian Airlines( 90%).

  • 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 $1,081, our data shows the cheapest flight currently is $85. When looking at the most popular route, (Los Angeles - Toronto Pearson Intl), you can expect to pay $252 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, July is the cheapest month in which you can book a flight from Los Angeles to Region of Ontario (average of $91). Flying from Los Angeles to Region of Ontario in January is currently the most expensive (average of $141). 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$119Average$258FlexibilityNo cancel feeOn-time60%
Porter AirlinesCheapest$120Average$339FlexibilityNo cancel feeOn-time52%
DeltaCheapest$131Average$360FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$135Average$440FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$159Average$364FlexibilityNo cancel feeOn-time69%
Air TransatCheapest$170Average$364FlexibilityNo cancel feeOn-time50%
American AirlinesCheapest$235Average$476FlexibilityNo cancel feeOn-time71%

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