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$90+ Cheap flights from New Orleans to Ontario (MSY - 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ONT
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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Cheap flight deals from New Orleans to Ontario

Cheapest flights from New Orleans to Ontario
Explore the most affordable flight options available from New Orleans to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

This Frontier deal was found by Cheapflights users on 12/19. 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 12/253:39 pmMSY - ONT
1 stop10h 20mFrontier
Mon 1/126:00 amONT - MSY
1 stop9h 00mFrontier
Deal found 12/19$233
This Frontier deal was found by Cheapflights users on 12/19. 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 12/253:39 pmMSY - ONT
1 stop10h 20mFrontier
Mon 12/296:45 amONT - MSY
1 stop5h 59mFrontier
Deal found 12/19$363
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/213:29 pmMSY - ONT
1 stop10h 30mFrontier
Thu 1/16:45 amONT - MSY
1 stop5h 59mFrontier
Deal found 12/20$413
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/213:29 pmMSY - ONT
1 stop10h 30mFrontier
Sat 1/36:45 amONT - MSY
1 stop5h 45mFrontier
Deal found 12/20$492
This Southwest deal was found by Cheapflights users on 12/19. 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 12/317:20 amMSY - ONT
1 stop6h 40mSouthwest
Fri 1/26:20 amONT - MSY
2 stops8h 20mSouthwest
Deal found 12/19$512
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:15 pmMSY - ONT
1 stop7h 35mDelta
Sat 1/36:00 amONT - MSY
1 stop5h 42mDelta
Deal found 12/20$538
This Delta deal was found by Cheapflights users on 12/19. 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 12/312:15 pmMSY - ONT
1 stop7h 35mDelta
Fri 1/26:00 amONT - MSY
1 stop5h 42mDelta
Deal found 12/19$569
This United Airlines deal was found by Cheapflights users on 12/19. 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.
Mon 12/295:07 pmMSY - ONT
1 stop6h 45mUnited Airlines
Thu 1/15:05 amONT - MSY
1 stop6h 32mUnited Airlines
Deal found 12/19$589
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/213:29 pmMSY - ONT
1 stop10h 30mFrontier
Fri 1/26:45 amONT - MSY
1 stop5h 59mFrontier
Deal found 12/20$592
This Frontier deal was found by Cheapflights users on 12/19. 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 12/253:39 pmMSY - ONT
1 stop10h 20mFrontier
Sun 12/286:45 amONT - MSY
1 stop5h 59mFrontier
Deal found 12/19$602
This Frontier deal was found by Cheapflights users on 12/19. 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 12/253:39 pmMSY - ONT
1 stop10h 20mFrontier
Sat 12/276:45 amONT - MSY
1 stop5h 45mFrontier
Deal found 12/19$642

Find flight deals from New Orleans to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from New Orleans (MSY) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$178
(Booking.com)

One-way from

$90
(Trip.com)

Popular in

December

Cheapest in

April

Average price

$541
Provider with most accurate pricing for New Orleans Louis Armstrong-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for New Orleans Louis Armstrong-Ontario flights.
Search Deals
From New Orleans Louis Armstrong to Ontario
Search Deals
One-way flight from New Orleans Louis Armstrong to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from New Orleans 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 December 21, 2025.
Use the filters below to find and compare flights from New Orleans to Ontario that are best for you.

Fly from

New Orleans

Fly to

Ontario

Route

Depart

Return

Price

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 2/12

3:13 pm-11:59 pm

1 stop10h 46m

Ontario

Sat 2/14

6:00 am-12:24 am

1 stop16h 24m

$195

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 2/5

7:33 pm-12:20 am

1 stop6h 47m

Ontario

Sun 2/8

6:20 am-6:48 pm

1 stop10h 28m

$217

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sun 2/22

1:04 pm-9:33 pm

1 stop10h 29m

Ontario

Sat 2/28

6:00 am-1:39 pm

1 stop5h 39m

$217

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 3/5

2:34 pm-11:59 pm

1 stop11h 25m

Ontario

Mon 3/9

6:15 am-2:41 pm

1 stop6h 26m

$220

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Fri 2/20

3:13 pm-11:59 pm

1 stop10h 46m

Ontario

Mon 2/23

6:10 am-6:47 pm

1 stop10h 37m

$238

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Mon 1/5

3:29 pm-11:59 pm

1 stop10h 30m

Ontario

Fri 1/9

6:00 am-5:16 pm

1 stop9h 16m

$268

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 1/15

5:44 pm-11:59 pm

1 stop8h 15m

Ontario

Sun 1/18

6:10 am-4:49 pm

1 stop8h 39m

$288

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 2/12

4:28 pm-7:22 am

1 stop16h 54m

Ontario

Wed 2/18

7:30 am-5:38 pm

2 stops32h 08m

$312

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Tue 2/24

6:20 pm-11:08 am

1 stop18h 48m

Ontario

Wed 3/4

7:00 am-9:28 pm

1 stop12h 28m

$333

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sun 2/15

1:04 pm-9:33 pm

1 stop10h 29m

Ontario

Thu 2/19

2:08 pm-12:24 am

1 stop8h 16m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 20 results
1
2

Compare providers for flights from New Orleans to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from New Orleans to Ontario in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on New Orleans-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on New Orleans-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from New Orleans-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on New Orleans-Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for New Orleans-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from New Orleans to Ontario

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

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

Currently, April is the cheapest month in which you can book a flight from New Orleans to Ontario (average of $83). Flying from New Orleans to Ontario in January is currently the most expensive (average of $162). 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 MSY to ONT?

Find hourly flight availability from New Orleans to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2025.

A simple way to save on the total cost of your ticket is to fly from New Orleans to Ontario in the evening. If you’re flexible enough to do this you can expect to save up to 35% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated December 21, 2025.
Read reviews from past customers who have flown Southwest and American Airlines from New Orleans to Ontario. 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.
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

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.
Southwest
8.0
Very good
4,257 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

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.
American Airlines
7.2
Good
11,050 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Comfort

8.0

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 New Orleans to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from New Orleans to Ontario?

    For as low as $195, Frontier can have you in Ontario from New Orleans in 10h 46m. Airlines will cover a distance of 1620 mi.

  • What are the cheapest airlines flying from New Orleans to Ontario round-trip?

    Cheapflights users have booked flights from New Orleans to Ontario round-trip from $184. Another airline that can offer you cheap pricing is Southwest. Users have found that American Airlines is 53% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from New Orleans to Ontario one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $97. Users have also found prices from $136 and $158 on American Airlines and Southwest, respectively.

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

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

  • How can I find direct flights from New Orleans to Ontario?

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

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

    Yes. Cheapflights offers flight deals from New Orleans 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 New Orleans to Ontario?

    Currently, April is the cheapest month in which you can book a flight from New Orleans to Ontario (average of $83). Flying from New Orleans to Ontario in January is currently the most expensive (average of $162). 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 New Orleans to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from New Orleans to Ontario

Discover the top 2 airlines that operate flights from New Orleans 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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$184Average$396FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$284Average$366FlexibilityNo cancel feeOn-time63%

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