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$85+ Cheap flights from Louisiana to Ontario (ONT)

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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ONT
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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Cheap flight deals from Louisiana to Ontario

Cheapest flights from Louisiana to Ontario
Explore the most affordable flight options available from Louisiana to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

This Frontier deal was found by Cheapflights users on 12/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:39 pmMSY - ONT
1 stop10h 20mFrontier
Mon 1/126:00 amONT - MSY
1 stop9h 00mFrontier
Deal found 12/16$207
This Frontier deal was found by Cheapflights users on 12/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:39 pmMSY - ONT
1 stop10h 20mFrontier
Mon 1/56:45 amONT - MSY
1 stop5h 59mFrontier
Deal found 12/16$258
This Frontier deal was found by Cheapflights users on 12/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:39 pmMSY - ONT
1 stop10h 20mFrontier
Fri 12/266:45 amONT - MSY
1 stop5h 59mFrontier
Deal found 12/15$282
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:30 pmMSY - ONT
1 stop8h 03mDelta
Wed 12/316:00 amONT - MSY
1 stop5h 44mDelta
Deal found 12/16$301
This Trip.com deal was found by Cheapflights users on 12/16. 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 12/253:39 pmMSY - ONT
1 stop10h 20mFrontier
Sun 1/46:45 amONT - MSY
1 stop5h 59mFrontier
Deal found 12/16$328
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/258:29 amMSY - ONT
1 stop6h 09mUnited Airlines
Wed 12/315:05 amONT - MSY
2 stops13h 01mUnited Airlines
Deal found 12/16$346
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:30 pmMSY - ONT
1 stop8h 03mDelta
Mon 1/125:07 pmONT - MSY
2 stops13h 39mDelta
Deal found 12/16$352
This Frontier deal was found by Cheapflights users on 12/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:39 pmMSY - ONT
1 stop10h 20mFrontier
Tue 12/306:45 amONT - MSY
1 stop5h 53mFrontier
Deal found 12/16$387
This American Airlines deal was found by Cheapflights users on 12/15. 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.
Thu 12/256:45 amMSY - ONT
2 stops11h 22mAmerican Airlines
Mon 1/129:59 amONT - MSY
2 stops11h 41mAmerican Airlines
Deal found 12/15$390
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Wed 12/242:35 pmMSY - ONT
1 stop8h 32mUnited Airlines
Thu 12/255:05 amONT - MSY
1 stop6h 32mUnited Airlines
Deal found 12/15$391
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:34 amBTR - ONT
2 stops13h 59mDelta
Fri 12/267:05 amONT - BTR
1 stop9h 13mDelta
Deal found 12/16$489
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Tue 12/166:03 pmBTR - ONT
1 stop5h 46mUnited Airlines
Tue 1/138:00 amONT - BTR
1 stop7h 53mUnited Airlines
Deal found 12/15$497

Find flight deals from Louisiana to Ontario

Keep the following information in mind while searching for Louisiana to Ontario flight deals. Data was last updated December 17, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$177
(Mytrip)

One-way from

$85
(Kiwi.com)

Popular in

November

Cheapest in

October

Average price

$328
Provider with most accurate pricing for New Orleans Louis Armstrong-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for New Orleans Louis Armstrong-Los Angeles flights.
Search Deals
From Louisiana to Ontario
Search Deals
One-way flight from Louisiana to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisiana 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 December 17, 2025.
Use the filters below to find and compare flights from Louisiana to Ontario that are best for you.

Fly from

Louisiana

Fly to

Ontario

Route

Depart

Return

Price

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 12/25

3:39 pm-11:59 pm

1 stop10h 20m

Ontario

Mon 1/12

6:00 am-5:00 pm

1 stop9h 00m

$207

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sun 2/1

10:47 am-12:10 pm

2 stops27h 23m

Ontario

Thu 2/5

8:48 pm-5:24 am

1 stop6h 36m

$211

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 1/22

7:33 pm-12:20 am

1 stop6h 47m

Ontario

Sun 1/25

6:20 am-6:48 pm

1 stop10h 28m

$217

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 1/15

5:44 pm-11:59 pm

1 stop8h 15m

Ontario

Mon 1/19

6:10 am-4:49 pm

1 stop8h 39m

$222

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 1/14

6:05 am-7:07 am

2 stops27h 02m

Ontario

Thu 1/15

7:56 pm-9:42 am

1 stop11h 46m

$257

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 1/15

5:44 pm-11:59 pm

1 stop8h 15m

Ontario

Sun 1/18

6:10 am-4:49 pm

1 stop8h 39m

$271

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Fri 2/6

6:00 am-11:31 am

1 stop7h 31m

Ontario

Sat 2/7

12:41 pm-10:19 pm

1 stop7h 38m

$289

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 12/25

4:30 pm-10:33 pm

1 stop8h 03m

Ontario

Wed 12/31

6:00 am-1:44 pm

1 stop5h 44m

$301

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Fri 2/20

4:02 pm-9:05 pm

1 stop7h 03m

Ontario

Sat 2/28

10:20 pm-9:52 am

1 stop9h 32m

$309

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Fri 2/20

4:02 pm-9:05 pm

1 stop7h 03m

Ontario

Wed 2/25

10:20 pm-9:52 am

1 stop9h 32m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 51 results
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Best time to book a flight from Louisiana to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Louisiana 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 Louisiana to Ontario

What is the cheapest month to book a flight from Louisiana to Ontario?

Currently, April is the cheapest month in which you can book a flight from Louisiana to Ontario (average of $83). Flying from Louisiana to Ontario in January is currently the most expensive (average of $159). 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 LA to ONT?

Find hourly flight availability from Louisiana 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 December 17, 2025.

It’s typically best to fly out from Louisiana to Ontario in the evening. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Louisiana 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 into for flights to Ontario from Louisiana?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Louisiana. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Louisiana to Ontario?

    For as low as $289, Frontier can have you in Ontario from Louisiana in 7h 31m. Louisiana and Ontario are separated by a distance of 1374 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Louisiana to Ontario one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $97. Users have also found prices from $136 and $158 on American Airlines and Southwest, respectively.

  • What are the most popular routes from Louisiana to Ontario?

    The most popular flight routes from Louisiana to Ontario are New Orleans Louis Armstrong - Ontario, Shreveport - Ontario and Baton Rouge Ryan - Ontario.

  • Can I find deals for flights from Louisiana to Ontario that include hotel bookings?

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

  • How can I find direct flights from Louisiana to Ontario?

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

  • Can I find deals for business class flights from Louisiana to Ontario?

    Yes. Cheapflights offers flight deals from Louisiana 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 Louisiana to Ontario?

    Currently, April is the cheapest month in which you can book a flight from Louisiana to Ontario (average of $83). Flying from Louisiana to Ontario in January is currently the most expensive (average of $159). 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

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Alternative routes for Louisiana to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Louisiana to Ontario

Discover the top 2 airlines that operate flights from Louisiana 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 December 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$184Average$428FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$284Average$375FlexibilityNo cancel feeOn-time63%

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