Louisiana

$74+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSY
Jan 22 — Jan 291
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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 December 23, 2025.

This Frontier deal was found by Cheapflights users on 12/21. 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.
Mon 12/296:45 amONT - MSY
1 stop5h 59mFrontier
Mon 1/53:29 pmMSY - ONT
1 stop10h 30mFrontier
Deal found 12/21$363
This Booking.com deal was found by Cheapflights users on 12/21. 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 12/296:45 amONT - MSY
1 stop5h 59mFrontier
Sun 1/43:29 pmMSY - ONT
1 stop10h 30mFrontier
Deal found 12/21$397
This Delta deal was found by Cheapflights users on 12/22. 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 12/316:00 amONT - MSY
1 stop7h 35mDelta
Thu 1/14:30 pmMSY - ONT
1 stop8h 03mDelta
Deal found 12/22$410
This Frontier deal was found by Cheapflights users on 12/22. 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.
Sun 12/286:45 amONT - MSY
1 stop5h 59mFrontier
Fri 1/23:29 pmMSY - ONT
1 stop10h 30mFrontier
Deal found 12/22$412
This Booking.com deal was found by Cheapflights users on 12/22. 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 12/296:45 amONT - MSY
1 stop5h 59mFrontier
Thu 1/13:39 pmMSY - ONT
1 stop10h 20mFrontier
Deal found 12/22$442
This Frontier deal was found by Cheapflights users on 12/22. 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 12/256:45 amONT - MSY
1 stop5h 59mFrontier
Mon 1/53:29 pmMSY - ONT
1 stop10h 30mFrontier
Deal found 12/22$463
This United Airlines deal was found by Cheapflights users on 12/22. 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 12/276:04 amONT - SHV
1 stop7h 32mUnited Airlines
Sun 1/114:10 pmSHV - ONT
1 stop7h 48mUnited Airlines
Deal found 12/22$483
This Frontier deal was found by Cheapflights users on 12/22. 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 12/256:45 amONT - MSY
1 stop5h 59mFrontier
Fri 1/23:29 pmMSY - ONT
1 stop10h 30mFrontier
Deal found 12/22$512
This Super.com deal was found by Cheapflights users on 12/22. 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.
Mon 12/296:45 amONT - MSY
1 stop5h 59mFrontier
Fri 1/23:29 pmMSY - ONT
1 stop10h 30mFrontier
Deal found 12/22$516
This United Airlines deal was found by Cheapflights users on 12/20. 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 12/316:04 amONT - BTR
1 stop7h 43mUnited Airlines
Fri 1/212:11 pmBTR - ONT
2 stops10h 56mUnited Airlines
Deal found 12/20$540
This Delta deal was found by Cheapflights users on 12/22. 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 12/316:00 amONT - MSY
1 stop7h 35mDelta
Mon 1/56:00 amMSY - ONT
1 stop7h 31mDelta
Deal found 12/22$580
This Frontier deal was found by Cheapflights users on 12/21. 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.
Tue 12/306:45 amONT - MSY
1 stop5h 53mFrontier
Mon 1/53:29 pmMSY - ONT
1 stop10h 30mFrontier
Deal found 12/21$582

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 December 23, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$165
(Expedia)

One-way from

$74
(Frontier)

Popular in

December

Cheapest in

September

Average price

$379
Provider with most accurate pricing for Los Angeles-New Orleans Louis Armstrong flight deals.
Provider most trusted by Cheapflights users for 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. 8% potential increase in price ($28 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in December 2025

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 December 23, 2025.
Use the filters below to find and compare flights from Ontario to Louisiana that are best for you.

Fly from

Ontario

Fly to

Louisiana

Route

Depart

Return

Price

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Thu 2/26

2:44 pm-10:00 pm

1 stop5h 16m

Shreveport

Thu 3/5

6:26 pm-10:49 pm

1 stop6h 23m

$289

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Sat 1/17

5:59 pm-9:13 pm

1 stop25h 14m

New Orleans Louis Armstrong

Tue 1/20

6:47 pm-3:08 pm

1 stop22h 21m

$300

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Thu 2/5

10:30 pm-9:47 am

1 stop9h 17m

Baton Rouge Ryan

Tue 2/10

6:18 am-11:31 am

1 stop7h 13m

$309

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Tue 4/14

12:39 pm-10:01 pm

1 stop7h 22m

Baton Rouge Ryan

Mon 4/20

4:00 pm-8:58 pm

1 stop6h 58m

$309

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Tue 4/28

10:15 pm-9:38 am

1 stop9h 23m

Baton Rouge Ryan

Mon 5/4

4:00 pm-8:58 pm

1 stop6h 58m

$309

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Tue 5/5

10:15 pm-9:38 am

1 stop9h 23m

Baton Rouge Ryan

Tue 5/12

3:20 pm-10:09 pm

1 stop8h 49m

$309

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sat 5/2

12:39 pm-10:01 pm

1 stop7h 22m

Baton Rouge Ryan

Tue 5/5

4:00 pm-8:58 pm

1 stop6h 58m

$309

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Tue 4/14

12:39 pm-10:01 pm

1 stop7h 22m

Baton Rouge Ryan

Tue 4/21

4:00 pm-8:58 pm

1 stop6h 58m

$309

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Wed 4/8

10:25 pm-9:45 am

1 stop9h 20m

Baton Rouge Ryan

Mon 4/13

4:00 pm-8:58 pm

1 stop6h 58m

$309

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Wed 3/11

12:50 pm-10:03 pm

1 stop7h 13m

Baton Rouge Ryan

Sun 3/15

1:36 pm-9:04 pm

1 stop9h 28m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 51 results
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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 February is currently the most expensive (average of $140). 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 ONT to LA?

Find hourly flight availability from Ontario to Louisiana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

One of the essential ways to save on airfare from Ontario to Louisiana is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 19% on airfare.

What is the cheapest day to fly from Ontario to Louisiana?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Louisiana. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Louisiana flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 23, 2025.
See what other customers who have flown with Southwest, Delta, and United 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.

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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.

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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.

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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.

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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.

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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.

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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 5h 16m. American Airlines provides one of the quickest options available for as low as $289. The distance between Ontario and Louisiana is about 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 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 $118 on American Airlines and United Airlines, 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 February is currently the most expensive (average of $140). 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$100Average$157FlexibilityNo cancel feeOn-time65%
FrontierCheapest$140Average$332FlexibilityNo cancel feeOn-time62%
DeltaCheapest$177Average$347FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$246Average$472FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$252Average$431FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$302Average$442FlexibilityNo cancel feeOn-time63%

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