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Ontario

$135+ 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 18 — Jul 251
Sat 7/18
Sat 7/25
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 18, 2026.

This Booking.com deal was found by Cheapflights users on 6/16. 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 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 6/16$266
This Booking.com deal was found by Cheapflights users on 6/17. 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 8/139:48 pm
MSY
-
ONT
1 stop28h 02m
Frontier
Sun 8/166:00 am
ONT
-
MSY
1 stop13h 03m
Frontier
Deal found 6/17$293
This CheapOair deal was found by Cheapflights users on 6/17. 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 8/209:48 pm
MSY
-
ONT
1 stop14h 17m
Frontier
Sun 8/236:00 am
ONT
-
MSY
1 stop13h 03m
Frontier
Deal found 6/17$301
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/278:05 pm
MSY
-
ONT
1 stop13h 58m
Multiple Airlines
Tue 8/188:33 pm
ONT
-
MSY
2 stops54h 27m
Multiple Airlines
Deal found 6/15$306
This Expedia deal was found by Cheapflights users on 6/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/179:48 pm
MSY
-
ONT
1 stop14h 16m
Frontier
Mon 7/2010:49 am
ONT
-
MSY
1 stop8h 14m
Frontier
Deal found 6/16$318
This Delta deal was found by Cheapflights users on 6/14. 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.
Wed 10/145:00 pm
AEX
-
ONT
1 stop7h 14m
Delta
Sat 10/1712:00 pm
ONT
-
AEX
1 stop7h 38m
Delta
Deal found 6/14$318
This Gotogate deal was found by Cheapflights users on 6/15. 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 Gotogate 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
Thu 8/136:00 am
ONT
-
MSY
1 stop13h 03m
Frontier
Deal found 6/15$319
This Booking.com deal was found by Cheapflights users on 6/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/169:48 pm
MSY
-
ONT
1 stop14h 16m
Frontier
Sun 7/196:00 am
ONT
-
MSY
1 stop13h 03m
Frontier
Deal found 6/16$321
This Delta deal was found by Cheapflights users on 6/14. 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 10/156:00 am
AEX
-
ONT
2 stops12h 12m
Delta
Sat 10/1712:00 pm
ONT
-
AEX
1 stop7h 38m
Delta
Deal found 6/14$324
This CheapOair deal was found by Cheapflights users on 6/17. 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 7/239:48 pm
MSY
-
ONT
1 stop28h 02m
Frontier
Sun 7/266:00 am
ONT
-
MSY
1 stop13h 03m
Frontier
Deal found 6/17$328
This United Airlines deal was found by Cheapflights users on 6/17. 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 7/153:35 pm
SHV
-
ONT
1 stop8h 20m
United Airlines
Wed 7/221:18 pm
ONT
-
SHV
1 stop6h 01m
United Airlines
Deal found 6/17$329
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Sat 8/1511:17 am
SHV
-
ONT
2 stops10h 44m
United Airlines
Wed 9/21:18 pm
ONT
-
SHV
1 stop5h 32m
United Airlines
Deal found 6/16$334

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 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$266
(Booking.com)

One-way from

$135
(Frontier)

Popular in

January

Cheapest in

August

Average price

$343
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 ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 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 18, 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

AlexandriaOntario

AEX - ONT

AEXONT

Alexandria

Fri 10/16

11:27 am-6:18 pm

1 stop8h 51m

Ontario

Sat 10/17

12:00 pm-9:38 pm

1 stop7h 38m

$318

AlexandriaOntario

AEX - ONT

AEXONT

Alexandria

Thu 10/15

6:00 am-4:12 pm

2 stops12h 12m

Ontario

Sat 10/17

12:00 pm-9:38 pm

1 stop7h 38m

$324

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Wed 7/15

3:35 pm-9:55 pm

1 stop8h 20m

Ontario

Wed 7/22

1:18 pm-9:19 pm

1 stop6h 01m

$329

AlexandriaOntario

AEX - ONT

AEXONT

Alexandria

Wed 10/14

6:00 am-4:12 pm

2 stops12h 12m

Ontario

Sat 10/17

12:00 pm-9:38 pm

1 stop7h 38m

$349

LafayetteOntario

LFT - ONT

LFTONT

Lafayette Regional

Thu 9/24

2:10 pm-10:59 pm

2 stops10h 49m

Ontario

Mon 9/28

6:00 am-1:22 pm

1 stop5h 22m

$354

AlexandriaOntario

AEX - ONT

AEXONT

Alexandria

Thu 7/30

4:00 pm-9:55 pm

1 stop7h 55m

Ontario

Wed 8/5

5:00 am-7:55 pm

2 stops12h 55m

$394

AlexandriaOntario

AEX - ONT

AEXONT

Alexandria

Thu 7/2

4:00 pm-9:55 pm

1 stop7h 55m

Ontario

Tue 7/7

5:45 am-3:25 pm

1 stop7h 40m

$416

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Tue 8/25

11:17 am-8:53 pm

2 stops11h 36m

Ontario

Sat 8/29

1:18 pm-8:50 pm

1 stop5h 32m

$424

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Sat 8/22

9:25 am-6:16 pm

2 stops10h 51m

Ontario

Wed 8/26

1:18 pm-8:50 pm

1 stop5h 32m

$424

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 7/22

12:42 pm-6:30 pm

1 stop7h 48m

Ontario

Mon 7/27

10:00 pm-9:29 am

1 stop9h 29m

$427

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 60 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 $318, Delta can have you in Ontario from Louisiana in 7h 14m. Louisiana and Ontario are separated by a distance of 1464 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 $166 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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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 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$169Average$248FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$210Average$454FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$299Average$440FlexibilityNo cancel feeOn-time63%

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