$74 Cheap Flights from New Orleans (MSY) to Ontario (ONT)

View $74 flight on Fri, Jan 30, 2026Opens in a new window

Popular airlines from Louis Armstrong New Orleans Intl. Airport (MSY) to Los Angeles - Ontario Intl. Airport (ONT)

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Cheap Flights from New Orleans to Ontario (MSY-ONT)

Prices were available within the past 7 days and start at $74 for one-way flights and $158 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Jan 22 - Fri, Jan 30
MSY
New Orleans
ONT
Ontario
$158 Roundtrip, found 4 hours ago
$158
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Jan 22 from New Orleans to Ontario, returning Fri, Jan 30, priced at $158 found 4 hours ago
American Airlines
Tue, Feb 3 - Tue, Feb 10
MSY
New Orleans
ONT
Ontario
$159 Roundtrip, found 16 hours ago
$159
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Tue, Feb 3 from New Orleans to Ontario, returning Tue, Feb 10, priced at $159 found 16 hours ago
American Airlines
Sat, Jan 31 - Tue, Feb 3
MSY
New Orleans
ONT
Ontario
$174 Roundtrip, found 1 day ago
$174
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Jan 31 from New Orleans to Ontario, returning Tue, Feb 3, priced at $174 found 1 day ago
Frontier Airlines
Sun, Feb 22 - Thu, Feb 26
MSY
New Orleans
ONT
Ontario
$175 Roundtrip, found 2 days ago
$175
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, Feb 22 from New Orleans to Ontario, returning Thu, Feb 26, priced at $175 found 2 days ago
Frontier Airlines
Thu, Apr 9 - Mon, Apr 13
MSY
New Orleans
ONT
Ontario
$182 Roundtrip, found 23 hours ago
$182
Roundtrip
found 23 hours ago
Select Frontier Airlines flight, departing Thu, Apr 9 from New Orleans to Ontario, returning Mon, Apr 13, priced at $182 found 23 hours ago
Southwest Airlines
Wed, Jan 7 - Wed, Jan 14
MSY
New Orleans
ONT
Ontario
$184 Roundtrip, found 1 day ago
$184
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Jan 7 from New Orleans to Ontario, returning Wed, Jan 14, priced at $184 found 1 day ago
American Airlines
Sat, Jan 31 - Mon, Feb 9
MSY
New Orleans
ONT
Ontario
$189 Roundtrip, found 22 hours ago
$189
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Sat, Jan 31 from New Orleans to Ontario, returning Mon, Feb 9, priced at $189 found 22 hours ago
Frontier Airlines
Thu, Jan 8 - Mon, Jan 12
MSY
New Orleans
ONT
Ontario
$192 Roundtrip, found 5 hours ago
$192
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Thu, Jan 8 from New Orleans to Ontario, returning Mon, Jan 12, priced at $192 found 5 hours ago
United
Thu, Jan 15 - Mon, Jan 19
MSY
New Orleans
ONT
Ontario
$229 Roundtrip, found 8 hours ago
$229
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Jan 15 from New Orleans to Ontario, returning Mon, Jan 19, priced at $229 found 8 hours ago
Hawaiian Airlines
Tue, Jan 13 - Sun, Jan 18
MSY
New Orleans
ONT
Ontario
$245 Roundtrip, found 2 days ago
$245
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Jan 13 from New Orleans to Ontario, returning Sun, Jan 18, priced at $245 found 2 days ago

Find the cheapest month to fly from New Orleans (MSY) to Ontario (ONT)

January is typically the cheapest month to fly

From $138 - $640 per traveler.

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John Wayne SNA. Average driving time to city center is 42 minutes. Flights from $619
SNA
John Wayne
Average driving time to city center42 min
Flights from $619
Flights from New Orleans (MSY) to Ontario (ONT)
Origin airport
Louis Armstrong New Orleans Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$158
Distance
1620 mi

New Orleans to Ontario Flights

The cheapest times to fly from New Orleans to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from New Orleans to Ontario are during the month of January. You can find some of the cheapest flights from New Orleans to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from New Orleans to Ontario

Sunday is one of the best days to book for cheap flights from New Orleans to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from New Orleans to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from New Orleans to Ontario in 2026. You can also book with separate airlines for your outbound and return journeys, from $74 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap New Orleans to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your New Orleans to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Louis Armstrong New Orleans Intl. Airport (MSY) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Lock in a cheap one-way flight from $74 or cheap return flight from $158 from Louis Armstrong New Orleans Intl. Airport (MSY) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Louis Armstrong New Orleans Intl. Airport (MSY) to Los Angeles - Ontario Intl. Airport (ONT)?
Flying in January may help you find better deals, as it's the cheapest month for flights between MSY and ONT. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Louis Armstrong New Orleans Intl. Airport (MSY) to Los Angeles - Ontario Intl. Airport (ONT)?
To find the cheapest airline flying from MSY to ONT, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Louis Armstrong New Orleans Intl. Airport (MSY) to Los Angeles - Ontario Intl. Airport (ONT)?
Nonstop flights from Louis Armstrong New Orleans Intl. Airport (MSY) to Los Angeles - Ontario Intl. Airport (ONT) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from MSY to ONT?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Louis Armstrong New Orleans Intl. Airport (MSY) to Los Angeles - Ontario Intl. Airport (ONT)?
To land at Los Angeles - Ontario Intl. Airport (ONT) on schedule, select a flight that takes off from Louis Armstrong New Orleans Intl. Airport (MSY) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Ontario from Louis Armstrong New Orleans Intl. Airport (MSY)?
Los Angeles Intl. Airport (LAX) is the only airport in Ontario with direct flights from Louis Armstrong New Orleans Intl. Airport (MSY). Browse your options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Louis Armstrong New Orleans Intl. Airport (MSY) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute fares from MSY to ONT are generally more expensive. For the cheapest rates, start looking for flights as early as possible. That said, if you're flexible with your travel dates, it's possible to find a cheap fare just before your departure.
Is it cheaper to book a MSY to ONT flight and hotel package?
You'll generally save money by securing a MSY to ONT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your preferred accommodations and flights, you can add extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Louis Armstrong New Orleans Intl. Airport (MSY) to Los Angeles - Ontario Intl. Airport (ONT)?
Generally, it's possible to reschedule or cancel your MSY to ONT flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.