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$126+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ONT
Jul 12 — Jul 191
Sun 7/12
Sun 7/19
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 June 12, 2026.

This Booking.com deal was found by Cheapflights users on 6/10. 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 8/69:48 pm
MSY
-
ONT
1 stop14h 16m
Frontier
Mon 8/106:00 am
ONT
-
MSY
1 stop13h 03m
Frontier
Deal found 6/10$252
This Super.com deal was found by Cheapflights users on 6/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/79:48 pm
MSY
-
ONT
1 stop14h 16m
Frontier
Mon 8/1010:49 am
ONT
-
MSY
1 stop8h 14m
Frontier
Deal found 6/9$262
This Frontier deal was found by Cheapflights users on 6/9. 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.
Sat 9/123:35 pm
MSY
-
ONT
1 stop10h 20m
Frontier
Mon 9/146:00 am
ONT
-
MSY
1 stop6h 40m
Frontier
Deal found 6/9$280
This Booking.com deal was found by Cheapflights users on 6/10. 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.
Mon 7/279:48 pm
MSY
-
ONT
1 stop28h 02m
Frontier
Mon 8/106:00 am
ONT
-
MSY
1 stop13h 03m
Frontier
Deal found 6/10$286
This Booking.com deal was found by Cheapflights users on 6/11. 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.
Mon 8/39:48 pm
MSY
-
ONT
1 stop28h 02m
Frontier
Thu 8/66:00 am
ONT
-
MSY
1 stop13h 03m
Frontier
Deal found 6/11$287
This CheapOair deal was found by Cheapflights users on 6/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:48 pm
MSY
-
ONT
1 stop14h 17m
Frontier
Mon 8/3110:50 am
ONT
-
MSY
1 stop8h 13m
Frontier
Deal found 6/11$290
This Booking.com deal was found by Cheapflights users on 6/8. 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 8/69:48 pm
MSY
-
ONT
1 stop14h 16m
Multiple Airlines
Tue 8/115:26 pm
ONT
-
MSY
1 stop10h 23m
Multiple Airlines
Deal found 6/8$292
This CheapOair deal was found by Cheapflights users on 6/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:48 pm
MSY
-
ONT
1 stop28h 01m
Frontier
Sun 8/306:00 am
ONT
-
MSY
1 stop13h 03m
Frontier
Deal found 6/10$294
This Booking.com deal was found by Cheapflights users on 6/10. 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 8/79:48 pm
MSY
-
ONT
1 stop28h 02m
Frontier
Sun 8/96:00 am
ONT
-
MSY
1 stop13h 03m
Frontier
Deal found 6/10$298
This CheapOair deal was found by Cheapflights users on 6/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/109:48 pm
MSY
-
ONT
1 stop28h 02m
Frontier
Fri 8/1410:49 am
ONT
-
MSY
1 stop8h 14m
Frontier
Deal found 6/8$302
This CheapOair deal was found by Cheapflights users on 6/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:48 pm
MSY
-
ONT
1 stop14h 16m
Frontier
Sun 8/1610:49 am
ONT
-
MSY
1 stop8h 14m
Frontier
Deal found 6/9$306
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/293:35 pm
SHV
-
ONT
1 stop8h 20m
United Airlines
Sat 8/81:18 pm
ONT
-
SHV
1 stop6h 01m
United Airlines
Deal found 6/12$329

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 June 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$252
(Booking.com)

One-way from

$126
(Frontier)

Popular in

January

Cheapest in

August

Average price

$340
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. 11% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 12, 2026.
Use the filters below to find and compare flights from Louisiana to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LafayetteOntario

LFT - ONT

LFTONT

Lafayette Regional

Thu 7/2

8:03 pm-11:59 pm

1 stop5h 56m

Ontario

Wed 7/8

2:15 pm-11:33 pm

1 stop7h 18m

$359

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Wed 7/29

3:35 pm-9:55 pm

1 stop8h 20m

Ontario

Sat 8/8

5:00 am-3:41 pm

2 stops8h 41m

$376

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Tue 8/11

7:10 am-4:30 pm

1 stop11h 20m

Ontario

Wed 8/12

5:54 pm-5:49 am

1 stop9h 55m

$391

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Tue 8/11

12:03 pm-8:01 pm

2 stops9h 58m

Ontario

Wed 8/12

5:00 am-2:57 pm

1 stop7h 57m

$410

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Tue 6/30

8:20 pm-11:59 pm

1 stop5h 39m

Ontario

Wed 7/8

7:15 pm-9:34 am

2 stops12h 19m

$419

AlexandriaOntario

AEX - ONT

AEXONT

Alexandria

Sat 9/19

4:08 pm-9:59 pm

1 stop7h 51m

Ontario

Wed 9/23

5:00 am-8:00 pm

2 stops13h 00m

$419

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Thu 8/27

11:17 am-8:01 pm

2 stops10h 44m

Ontario

Sun 8/30

6:00 am-3:36 pm

1 stop7h 36m

$424

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 9/24

5:30 am-4:10 pm

2 stops12h 40m

Ontario

Sun 9/27

1:45 pm-12:15 am

1 stop8h 30m

$429

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Thu 7/16

8:16 pm-11:59 pm

1 stop5h 43m

Ontario

Tue 7/21

7:15 pm-9:34 am

2 stops12h 19m

$444

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sat 7/4

12:47 pm-6:30 pm

1 stop7h 43m

Ontario

Thu 7/9

6:00 am-1:47 pm

1 stop5h 47m

$446

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 59 resultsSorted by cheapest first
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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, July is the cheapest month in which you can book a flight from Louisiana to Ontario (average of $158). Flying from Louisiana to Ontario in January is currently the most expensive (average of $414). 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 $359, American Airlines can have you in Ontario from Louisiana in 5h 56m. Louisiana and Ontario are separated by a distance of 1517 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 $95. Users have also found prices from $118 and $124 on United Airlines and American 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, Baton Rouge Ryan - Ontario and Shreveport - 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, July is the cheapest month in which you can book a flight from Louisiana to Ontario (average of $158). Flying from Louisiana to Ontario in January is currently the most expensive (average of $414). 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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San Francisco to San Diego flights
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George Bush Intcntl to Los Angeles flights
Boston to Las Vegas flights
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Dallas/Fort Worth to Ontario flights
Orlando to Las Vegas flights
John F Kennedy Intl to San Jose flights
San Francisco to Santa Ana flights
O'Hare Intl to San Francisco flights
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Top 3 airlines flying from Louisiana to Ontario

Discover the top 3 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 June 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$169Average$248FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$210Average$460FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$299Average$440FlexibilityNo cancel feeOn-time63%

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