Louisiana

$72+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSY
Nov 21 — Nov 281
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Find 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 October 22, 2025.

This Mytrip deal was found by Cheapflights users on 10/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:53 amONT - MSY
1 stop10h 07mFrontier
Thu 11/137:45 pmMSY - ONT
1 stop6h 05mFrontier
Deal found 10/20$170
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/101:46 pmONT - MSY
1 stop8h 34mMultiple Airlines
Wed 11/123:42 pmMSY - ONT
2 stops29h 07mMultiple Airlines
Deal found 10/21$184
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/48:00 amONT - MSY
2 stops24h 05mMultiple Airlines
Sat 11/84:21 pmMSY - ONT
1 stop16h 01mMultiple Airlines
Deal found 10/20$187
This Southwest deal was found by Cheapflights users on 10/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:10 pmONT - MSY
1 stop5h 50mSouthwest
Wed 12/313:10 pmMSY - ONT
1 stop6h 05mSouthwest
Deal found 10/20$193
This Frontier deal was found by Cheapflights users on 10/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:45 amONT - MSY
1 stop10h 15mFrontier
Fri 11/147:45 pmMSY - ONT
1 stop6h 05mFrontier
Deal found 10/20$194
This Frontier deal was found by Cheapflights users on 10/22. 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 11/96:45 amONT - MSY
1 stop10h 15mFrontier
Thu 11/137:45 pmMSY - ONT
1 stop6h 05mFrontier
Deal found 10/22$202
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/63:20 pmONT - MSY
1 stop19h 04mMultiple Airlines
Sun 12/144:35 pmMSY - ONT
2 stops25h 58mMultiple Airlines
Deal found 10/22$216
This Booking.com deal was found by Cheapflights users on 10/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:53 amONT - MSY
1 stop9h 45mFrontier
Thu 10/307:45 pmMSY - ONT
1 stop6h 05mFrontier
Deal found 10/20$224
This Frontier deal was found by Cheapflights users on 10/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:53 amONT - MSY
1 stop10h 07mFrontier
Mon 11/246:04 pmMSY - ONT
1 stop7h 53mFrontier
Deal found 10/20$226
This Frontier deal was found by Cheapflights users on 10/21. 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.
Fri 10/316:53 amONT - MSY
1 stop10h 07mFrontier
Mon 11/37:45 pmMSY - ONT
1 stop6h 05mFrontier
Deal found 10/21$228
This American Airlines deal was found by Cheapflights users on 10/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:56 pmONT - BTR
1 stop5h 36mAmerican Airlines
Thu 12/117:54 pmBTR - ONT
1 stop6h 01mAmerican Airlines
Deal found 10/20$289
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Wed 11/56:05 amONT - SHV
1 stop7h 23mUnited Airlines
Sat 11/84:05 pmSHV - ONT
1 stop7h 44mUnited Airlines
Deal found 10/22$319

Cheap flight deals from Ontario to Louisiana

Keep the following information in mind while searching for Ontario to Louisiana flight deals. Data was last updated October 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$130
(Kiwi.com)

One-way from

$72
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$304
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. 9% potential increase in price ($34 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in October 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 October 22, 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

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Tue 11/11

10:25 pm-9:37 am

1 stop9h 12m

New Orleans Louis Armstrong

Tue 11/18

5:22 am-11:06 am

1 stop7h 44m

$277

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Tue 11/11

6:00 am-2:14 pm

1 stop6h 14m

New Orleans Louis Armstrong

Wed 11/12

5:58 pm-11:04 pm

1 stop7h 06m

$277

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Thu 12/4

2:56 pm-10:32 pm

1 stop5h 36m

Baton Rouge Ryan

Thu 12/11

7:54 pm-11:55 pm

1 stop6h 01m

$289

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Sat 12/6

12:55 pm-10:50 pm

2 stops7h 55m

New Orleans Louis Armstrong

Mon 12/15

6:11 pm-10:00 pm

1 stop5h 49m

$290

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Fri 11/14

11:59 am-12:34 am

1 stop10h 35m

New Orleans Louis Armstrong

Tue 11/18

7:00 am-3:17 pm

1 stop10h 17m

$306

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Sat 12/6

4:49 pm-8:19 am

2 stops13h 30m

New Orleans Louis Armstrong

Mon 12/15

1:43 pm-10:47 pm

2 stops11h 04m

$309

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Wed 12/24

3:10 pm-11:00 pm

1 stop5h 50m

New Orleans Louis Armstrong

Mon 12/29

10:20 am-2:50 pm

1 stop6h 30m

$318

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Wed 11/5

6:05 am-3:28 pm

1 stop7h 23m

Shreveport

Sat 11/8

4:05 pm-9:49 pm

1 stop7h 44m

$319

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Tue 11/11

6:00 am-2:14 pm

1 stop6h 14m

New Orleans Louis Armstrong

Fri 11/14

5:58 pm-11:04 pm

1 stop7h 06m

$321

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Fri 12/5

6:00 am-2:16 pm

1 stop6h 16m

New Orleans Louis Armstrong

Thu 12/11

5:15 am-11:02 am

1 stop7h 47m

$322

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 60 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 $145). 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 October 22, 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 October 22, 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.

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 36m. Delta provides one of the quickest options available for as low as $289. The distance between Ontario and Louisiana is about 1558 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 Alaska Airlines. According to our data, you can fly for as low as $124. Users have also found prices from $244 and $295 on United Airlines and American 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 $145). 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 October 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$100Average$168FlexibilityNo cancel feeOn-time65%
FrontierCheapest$140Average$264FlexibilityNo cancel feeOn-time62%
DeltaCheapest$177Average$376FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$468FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$264Average$418FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$302Average$438FlexibilityNo cancel feeOn-time63%

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