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$100+ 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ONT
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$196
(Booking.com)

One-way from

$100
(Trip.com)

Popular in

December

Cheapest in

April

Average price

$366
From New Orleans Louis Armstrong to Ontario
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One-way flight from New Orleans Louis Armstrong to Ontario
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Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This Booking.com deal was found by Cheapflights users on 9/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:45 pmMSY - ONT
1 stop6h 05mFrontier
Mon 11/176:53 amONT - MSY
1 stop10h 07mFrontier
Deal found 9/15$196
This Booking.com deal was found by Cheapflights users on 9/16. 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 11/137:45 pmMSY - ONT
1 stop17h 25mFrontier
Sun 11/166:53 amONT - MSY
1 stop10h 07mFrontier
Deal found 9/16$214
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/248:50 amMSY - ONT
1 stop24h 59mMultiple Airlines
Mon 10/276:53 amONT - MSY
1 stop9h 45mMultiple Airlines
Deal found 9/17$216
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:45 pmMSY - ONT
1 stop6h 05mFrontier
Fri 11/146:53 amONT - MSY
1 stop10h 07mFrontier
Deal found 9/15$227

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 September 17, 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 11/13

7:00 am-3:17 pm

1 stop10h 17m

Ontario

Tue 11/18

6:00 am-4:19 pm

1 stop8h 19m

$248

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 11/12

7:00 am-3:17 pm

1 stop10h 17m

Ontario

Tue 11/18

6:00 am-4:19 pm

1 stop8h 19m

$248

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 11/12

7:00 am-3:17 pm

1 stop10h 17m

Ontario

Sat 11/15

11:59 am-12:34 am

1 stop10h 35m

$248

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 11/13

7:00 am-3:17 pm

1 stop10h 17m

Ontario

Sat 11/15

11:59 am-12:34 am

1 stop10h 35m

$248

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 10/15

4:52 pm-10:22 pm

1 stop7h 30m

Ontario

Tue 10/28

11:36 am-8:17 pm

1 stop6h 41m

$277

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 11/12

4:58 pm-11:04 pm

1 stop8h 06m

Ontario

Mon 11/17

10:25 pm-8:07 am

1 stop7h 42m

$277

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sat 10/18

1:58 pm-9:20 pm

1 stop9h 22m

Ontario

Sat 10/25

11:36 am-8:17 pm

1 stop6h 41m

$277

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 11/12

5:22 am-10:40 am

1 stop7h 18m

Ontario

Wed 11/12

10:25 pm-8:07 am

1 stop7h 42m

$277

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Tue 10/21

5:20 am-10:26 am

1 stop7h 06m

Ontario

Tue 10/28

11:36 am-8:17 pm

1 stop6h 41m

$277

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 11/5

7:00 am-3:17 pm

1 stop10h 17m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 21 results
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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, August is the cheapest month in which you can book a flight from New Orleans to Ontario (average of $246). Flying from New Orleans to Ontario in March is currently the most expensive (average of $327). 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 September 17, 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 36% 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 September 17, 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
4,242 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

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
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

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 $248, Alaska Airlines can have you in Ontario from New Orleans in 10h 17m. 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 $210. Another airline that can offer you cheap pricing is Southwest. Users have found that American Airlines is 44% cheaper than the other options available to this destination.

  • 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, August is the cheapest month in which you can book a flight from New Orleans to Ontario (average of $246). Flying from New Orleans to Ontario in March is currently the most expensive (average of $327). 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$210Average$396FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$294Average$404FlexibilityNo cancel feeOn-time63%

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