Louisiana

$105+ Cheap flights from Ontario (ONT) to Louisiana

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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSY
Apr 14 — Apr 211
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Cheap flight deals from Ontario to Louisiana

Cheapest flights from Ontario to Louisiana
Explore the most affordable flight options available from Ontario to Louisiana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.

This Frontier deal was found by Cheapflights users on 3/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:59 am
ONT
-
MSY
1 stop11h 45m
Frontier
Fri 4/243:39 pm
MSY
-
ONT
1 stop10h 16m
Frontier
Deal found 3/14$210
This Booking.com deal was found by Cheapflights users on 3/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:50 am
ONT
-
MSY
1 stop8h 20m
Frontier
Sun 5/109:46 pm
MSY
-
ONT
1 stop12h 03m
Frontier
Deal found 3/14$217
This Booking.com deal was found by Cheapflights users on 3/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:44 pm
ONT
-
MSY
1 stop14h 38m
Frontier
Fri 4/2411:58 am
MSY
-
ONT
1 stop6h 40m
Frontier
Deal found 3/14$219
This Booking.com deal was found by Cheapflights users on 3/11. 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.
Sat 4/2511:44 am
ONT
-
MSY
1 stop22h 38m
Frontier
Thu 4/303:36 pm
MSY
-
ONT
1 stop10h 19m
Frontier
Deal found 3/11$223
This Frontier deal was found by Cheapflights users on 3/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:59 am
ONT
-
MSY
1 stop11h 45m
Frontier
Mon 4/2011:26 am
MSY
-
ONT
1 stop7h 12m
Frontier
Deal found 3/10$231
This Booking.com deal was found by Cheapflights users on 3/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:44 pm
ONT
-
MSY
1 stop14h 38m
Frontier
Thu 5/149:55 pm
MSY
-
ONT
1 stop27h 54m
Frontier
Deal found 3/12$233
This Gotogate deal was found by Cheapflights users on 3/15. 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 5/18:26 am
ONT
-
MSY
1 stop9h 43m
Frontier
Thu 5/79:55 pm
MSY
-
ONT
1 stop27h 54m
Frontier
Deal found 3/15$239
This Mytrip deal was found by Cheapflights users on 3/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:59 am
ONT
-
MSY
1 stop11h 45m
Frontier
Thu 5/79:55 pm
MSY
-
ONT
1 stop14h 10m
Frontier
Deal found 3/12$240
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:59 pm
ONT
-
MSY
2 stops17h 22m
Frontier
Fri 5/159:55 pm
MSY
-
ONT
1 stop14h 10m
Frontier
Deal found 3/14$248
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:44 am
ONT
-
SHV
1 stop7h 20m
Multiple Airlines
Fri 5/19:54 pm
SHV
-
ONT
1 stop14h 50m
Multiple Airlines
Deal found 3/14$286
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/611:10 am
ONT
-
SHV
1 stop7h 54m
Multiple Airlines
Mon 4/139:54 pm
SHV
-
ONT
1 stop14h 50m
Multiple Airlines
Deal found 3/12$287
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Tue 8/185:45 am
ONT
-
AEX
1 stop7h 43m
United Airlines
Sat 8/224:05 pm
AEX
-
ONT
1 stop7h 54m
United Airlines
Deal found 3/12$318

Find flight deals from Ontario to Louisiana

Keep the following information in mind while searching for Ontario to Louisiana flight deals. Data was last updated March 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$210
(Frontier)

One-way from

$105
(Frontier)

Popular in

March

Cheapest in

September

Average price

$397
Provider with most accurate pricing for Los Angeles Los Angeles-New Orleans Louis Armstrong flight deals.
Provider most trusted by Cheapflights users for Los Angeles Los Angeles-New Orleans Louis Armstrong flights.
From Ontario to Louisiana
One-way flight from Ontario to Louisiana
Highest demand for flights based on searches. 14% potential increase in price ($52 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Louisiana 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 March 15, 2026.
Use the filters below to find and compare flights from Ontario to Louisiana that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioAlexandria

ONT - AEX

ONTAEX

Ontario

Tue 8/18

5:45 am-3:28 pm

1 stop7h 43m

Alexandria

Sat 8/22

4:05 pm-9:59 pm

1 stop7h 54m

$318

OntarioAlexandria

ONT - AEX

ONTAEX

Ontario

Thu 7/16

5:45 am-3:25 pm

1 stop7h 40m

Alexandria

Mon 7/20

4:00 pm-9:55 pm

1 stop7h 55m

$318

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Wed 4/15

2:10 pm-11:50 pm

1 stop7h 40m

New Orleans Louis Armstrong

Tue 4/21

8:00 am-1:15 pm

1 stop7h 15m

$332

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Thu 5/28

10:00 pm-9:45 am

1 stop9h 45m

Baton Rouge Ryan

Sun 5/31

1:36 pm-9:48 pm

1 stop10h 12m

$349

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Fri 5/29

10:00 pm-9:45 am

1 stop9h 45m

Baton Rouge Ryan

Sun 5/31

1:36 pm-9:48 pm

1 stop10h 12m

$349

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Tue 4/14

6:15 am-6:00 pm

2 stops9h 45m

Shreveport

Tue 4/21

8:00 am-6:24 pm

2 stops12h 24m

$364

OntarioMonroe

ONT - MLU

ONTMLU

Ontario

Wed 4/15

11:59 pm-9:40 am

1 stop7h 41m

Monroe Huenefeld

Wed 4/22

6:39 pm-10:36 pm

1 stop5h 57m

$398

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Mon 5/11

1:40 pm-11:29 pm

2 stops7h 49m

New Orleans Louis Armstrong

Thu 5/14

5:00 am-12:22 pm

2 stops9h 22m

$406

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Mon 5/4

6:00 am-5:39 pm

1 stop9h 39m

New Orleans Louis Armstrong

Tue 5/12

7:00 am-2:32 pm

1 stop9h 32m

$407

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Thu 5/28

1:18 pm-10:46 pm

2 stops7h 28m

Baton Rouge Ryan

Sun 5/31

6:09 pm-9:55 pm

1 stop5h 46m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Louisiana

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

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Louisiana (average of $78). Flying from Ontario to Louisiana in March is currently the most expensive (average of $152). 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.

Reviews of airlines servicing Louisiana

Get insights into the airlines that provide service to Louisiana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Louisiana. Reviews last updated March 15, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Ontario to Louisiana have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

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

    For a flight from Ontario to Louisiana, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • How long is the flight from Ontario to Louisiana?

    A quick flight from Ontario to Louisiana can take about 7h 40m. United Airlines provides one of the quickest options available for as low as $332. The distance between Ontario and Louisiana is about 1620 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 Ontario to Louisiana one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $71. Users have also found prices from $99 and $108 on American Airlines and Southwest, respectively.

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

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Ontario to Louisiana (average of $78). Flying from Ontario to Louisiana in March is currently the most expensive (average of $152). 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 Ontario to Louisiana

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Ontario to Louisiana

Discover the top 6 airlines that operate flights from Ontario to Louisiana. 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 March 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$54Average$131FlexibilityNo cancel feeOn-time65%
FrontierCheapest$112Average$350FlexibilityNo cancel feeOn-time62%
DeltaCheapest$166Average$302FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$459FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$242Average$440FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$302Average$418FlexibilityNo cancel feeOn-time63%

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