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$63+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ONT
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find 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 October 30, 2025.

This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/51:19 pmMSY - ONT
1 stop27h 06mFrontier
Sun 12/74:01 pmONT - MSY
1 stop18h 57mFrontier
Deal found 10/30$141
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:19 pmMSY - ONT
1 stop27h 06mFrontier
Sun 12/74:01 pmONT - MSY
1 stop18h 57mFrontier
Deal found 10/30$144
This Frontier deal was found by Cheapflights users on 10/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:45 pmMSY - ONT
1 stop6h 05mFrontier
Mon 11/176:53 amONT - MSY
1 stop10h 07mFrontier
Deal found 10/29$196
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:45 pmMSY - ONT
1 stop6h 05mFrontier
Mon 11/176:53 amONT - MSY
1 stop10h 07mFrontier
Deal found 10/28$202
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/71:19 pmMSY - ONT
1 stop27h 06mFrontier
Thu 12/1112:04 pmONT - MSY
1 stop22h 20mFrontier
Deal found 10/28$204
This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:45 pmMSY - ONT
1 stop17h 25mFrontier
Sun 11/166:53 amONT - MSY
1 stop10h 07mFrontier
Deal found 10/29$210
This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/67:45 pmMSY - ONT
1 stop17h 25mFrontier
Mon 11/106:53 amONT - MSY
1 stop10h 07mFrontier
Deal found 10/29$224
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.
Thu 11/67:45 pmMSY - ONT
1 stop17h 25mFrontier
Sun 11/96:45 amONT - MSY
1 stop10h 15mFrontier
Deal found 10/28$230
This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:45 pmMSY - ONT
1 stop6h 05mFrontier
Sun 11/96:45 amONT - MSY
1 stop10h 15mFrontier
Deal found 10/29$236
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:45 pmMSY - ONT
1 stop6h 05mFrontier
Sat 11/812:05 pmONT - MSY
1 stop28h 55mFrontier
Deal found 10/28$251
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2712:15 pmSHV - ONT
1 stop5h 57mUnited Airlines
Thu 12/46:00 amONT - SHV
1 stop7h 26mUnited Airlines
Deal found 10/28$269
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:45 amSHV - ONT
1 stop6h 09mAmerican Airlines
Wed 12/312:46 pmONT - SHV
1 stop6h 56mAmerican Airlines
Deal found 10/28$294

Cheap flight deals from Louisiana to Ontario

Keep the following information in mind while searching for Louisiana to Ontario flight deals. Data was last updated October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$141
(Mytrip)

One-way from

$63
(Trip.com)

Popular in

March

Cheapest in

May

Average price

$257
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. 6% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 30, 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

Fri 12/5

1:19 pm-2:25 pm

1 stop27h 06m

Ontario

Sun 12/7

4:01 pm-12:58 pm

1 stop18h 57m

$141

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 11/13

7:45 pm-11:50 pm

1 stop6h 05m

Ontario

Mon 11/17

6:53 am-7:00 pm

1 stop10h 07m

$196

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 11/13

7:45 pm-11:10 am

1 stop17h 25m

Ontario

Sun 11/16

6:53 am-7:00 pm

1 stop10h 07m

$210

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Thu 11/27

12:15 pm-4:12 pm

1 stop5h 57m

Ontario

Thu 12/4

6:00 am-3:26 pm

1 stop7h 26m

$269

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 11/27

1:05 pm-7:42 pm

1 stop8h 37m

Ontario

Wed 12/3

12:12 pm-10:18 pm

1 stop8h 06m

$281

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 12/4

6:11 pm-10:00 pm

1 stop5h 49m

Ontario

Wed 12/10

3:04 pm-10:50 pm

1 stop5h 46m

$284

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 12/4

5:37 pm-11:04 pm

1 stop7h 27m

Ontario

Wed 12/10

7:05 am-4:32 pm

1 stop7h 27m

$285

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 12/4

3:27 pm-11:58 pm

2 stops10h 31m

Ontario

Tue 12/9

6:00 am-2:16 pm

1 stop6h 16m

$290

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 2/19

4:28 pm-9:17 pm

1 stop6h 49m

Ontario

Sun 2/22

6:30 am-3:33 pm

1 stop7h 03m

$292

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Sat 11/15

7:45 am-11:54 am

1 stop6h 09m

Ontario

Wed 12/3

12:46 pm-9:42 pm

1 stop6h 56m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 56 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 $185). 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 October 30, 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 $269, Frontier can have you in Ontario from Louisiana in 5h 57m. 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 Delta. According to our data, you can fly for as low as $149. Users have also found prices from $175 and $289 on Alaska Airlines and United Airlines, 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 $185). 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$184Average$395FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$284Average$398FlexibilityNo cancel feeOn-time63%

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