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$48+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ONT
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This Priceline deal was found by Cheapflights users on 1/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/262:34 pm
MSY
-
ONT
1 stop11h 25m
Frontier
Mon 3/26:10 am
ONT
-
MSY
1 stop10h 37m
Frontier
Deal found 1/28$168
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 3/38:29 pm
MSY
-
ONT
1 stop18h 42m
Multiple Airlines
Tue 3/106:15 am
ONT
-
MSY
2 stops25h 23m
Multiple Airlines
Deal found 1/27$180
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Wed 2/258:29 pm
MSY
-
ONT
1 stop18h 42m
Multiple Airlines
Wed 3/48:40 am
ONT
-
MSY
1 stop26h 59m
Multiple Airlines
Deal found 1/28$184
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 3/52:34 pm
MSY
-
ONT
1 stop11h 25m
Frontier
Sat 3/76:15 am
ONT
-
MSY
1 stop6h 26m
Frontier
Deal found 1/28$185
This Trip.com deal was found by Cheapflights users on 1/27. 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.
Fri 2/2710:43 am
MSY
-
ONT
1 stop12h 05m
Multiple Airlines
Mon 3/26:10 am
ONT
-
MSY
1 stop10h 37m
Multiple Airlines
Deal found 1/27$186
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Wed 4/111:18 am
MSY
-
ONT
1 stop7h 05m
Multiple Airlines
Sat 4/48:19 pm
ONT
-
MSY
1 stop7h 05m
Multiple Airlines
Deal found 1/28$212
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 3/510:43 am
MSY
-
ONT
2 stops15h 16m
Multiple Airlines
Sat 3/76:15 am
ONT
-
MSY
1 stop6h 26m
Multiple Airlines
Deal found 1/28$219
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 2/262:34 pm
MSY
-
ONT
1 stop11h 25m
Multiple Airlines
Mon 3/26:43 pm
ONT
-
MSY
2 stops12h 55m
Multiple Airlines
Deal found 1/28$221
This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/214:10 pm
SHV
-
ONT
1 stop7h 49m
United Airlines
Sat 2/286:00 am
ONT
-
SHV
1 stop7h 29m
United Airlines
Deal found 1/27$289
This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/218:30 am
SHV
-
ONT
2 stops15h 14m
Delta
Sat 2/281:15 pm
ONT
-
SHV
1 stop7h 02m
Delta
Deal found 1/27$294
This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:00 am
AEX
-
ONT
1 stop7h 47m
Delta
Tue 3/1712:57 pm
ONT
-
AEX
1 stop6h 40m
Delta
Deal found 1/27$298
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 5/19:54 pm
SHV
-
ONT
1 stop14h 50m
Multiple Airlines
Fri 5/811:44 am
ONT
-
SHV
1 stop7h 20m
Multiple Airlines
Deal found 1/26$302

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$168
(Priceline)

One-way from

$48
(Trip.com)

Popular in

November

Cheapest in

October

Average price

$322
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. 8% potential increase in price ($23 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 January 2026
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 January 29, 2026.
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 2/26

2:34 pm-11:59 pm

1 stop11h 25m

Ontario

Mon 3/2

6:10 am-6:47 pm

1 stop10h 37m

$168

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 3/5

2:34 pm-11:59 pm

1 stop11h 25m

Ontario

Sat 3/7

6:15 am-2:41 pm

1 stop6h 26m

$185

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 4/1

11:18 am-4:23 pm

1 stop7h 05m

Ontario

Sat 4/4

8:19 pm-5:24 am

1 stop7h 05m

$212

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 3/5

10:43 am-11:59 pm

2 stops15h 16m

Ontario

Sat 3/7

6:15 am-2:41 pm

1 stop6h 26m

$219

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 2/26

2:34 pm-11:59 pm

1 stop11h 25m

Ontario

Mon 3/2

6:43 pm-9:38 am

2 stops12h 55m

$221

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sat 2/14

3:13 pm-11:59 pm

1 stop10h 46m

Ontario

Thu 2/26

2:08 pm-6:47 pm

1 stop26h 39m

$274

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 3/18

7:15 pm-11:51 pm

1 stop6h 36m

Ontario

Wed 3/25

6:00 am-1:44 pm

1 stop5h 44m

$277

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Tue 3/24

7:15 pm-11:51 pm

1 stop6h 36m

Ontario

Wed 4/1

6:00 am-1:44 pm

1 stop5h 44m

$277

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 2/26

2:34 pm-11:59 pm

1 stop11h 25m

Ontario

Sun 3/1

2:08 pm-6:47 pm

1 stop26h 39m

$277

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Sat 2/21

4:10 pm-9:59 pm

1 stop7h 49m

Ontario

Sat 2/28

6:00 am-3:29 pm

1 stop7h 29m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 47 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 $163). 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.

How much does it cost to fly round-trip from Louisiana to Ontario?

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 49m. 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 $98. 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 $163). 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$184Average$441FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$284Average$366FlexibilityNo cancel feeOn-time63%

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