HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
New Orleans

$136+ Cheap flights from Ontario to New Orleans (ONT - MSY)

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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSY
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to New Orleans with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Ontario to New Orleans Louis Armstrong are usually found in September or May, booked 52 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Ontario to New Orleans

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to New Orleans (MSY). 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 junio 12, 2025.

Round-trip from

$273
(United Airlines)

One-way from

$136
(Alaska Airlines)

Popular in

December

Cheapest in

September

Average price

$446
From Ontario to New Orleans Louis Armstrong
Search Deals
One-way flight from Ontario to New Orleans Louis Armstrong
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Ontario to New Orleans

Cheapest flights from Ontario to New Orleans
Explore the most affordable flight options available from Ontario to New Orleans. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/11. 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.
mar. 7/16:00 amONT - MSY
1 stop5h 13mUnited Airlines
mié. 7/22:36 pmMSY - ONT
1 stop8h 18mUnited Airlines
Deal found 6/11$273
This Delta deal was found by Cheapflights users on 6/10. 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.
dom. 8/316:05 amONT - MSY
1 stop6h 02mDelta
sáb. 9/65:25 amMSY - ONT
1 stop7h 10mDelta
Deal found 6/10$280
This Hawaiian Airlines deal was found by Cheapflights users on 6/12. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/56:58 pmONT - MSY
1 stop8h 52mHawaiian Airlines
mar. 8/194:53 pmMSY - ONT
1 stop9h 20mHawaiian Airlines
Deal found 6/12$282
This American Airlines deal was found by Cheapflights users on 6/12. 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.
mié. 8/2012:46 pmONT - MSY
1 stop5h 28mAmerican Airlines
sáb. 8/236:35 pmMSY - ONT
1 stop6h 13mAmerican Airlines
Deal found 6/12$285
This Southwest deal was found by Cheapflights users on 6/12. 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.
mar. 8/55:25 amONT - MSY
1 stop5h 20mSouthwest
mar. 8/1910:45 amMSY - ONT
2 stops8h 00mSouthwest
Deal found 6/12$288
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/46:58 pmONT - MSY
1 stop8h 52mAlaska Airlines
sáb. 8/94:53 pmMSY - ONT
1 stop9h 20mAlaska Airlines
Deal found 6/10$289
This CheapOair deal was found by Cheapflights users on 6/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 7/125:21 pmONT - MSY
1 stop21h 43mFrontier
jue. 7/176:01 pmMSY - ONT
1 stop17h 08mFrontier
Deal found 6/11$350

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to New Orleans 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 junio 12, 2025.
Use the filters below to find and compare flights from Ontario to New Orleans that are best for you.

Fly from

Ontario

Fly to

New Orleans

Route

Depart

Return

Price

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

mar. 7/1

6:00 am-1:13 pm

1 stop5h 13m

New Orleans Louis Armstrong

mié. 7/2

2:36 pm-8:54 pm

1 stop8h 18m

$273

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

dom. 8/31

6:05 am-2:07 pm

1 stop6h 02m

New Orleans Louis Armstrong

sáb. 9/6

5:25 am-10:35 am

1 stop7h 10m

$280

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

mar. 8/5

6:58 pm-5:50 am

1 stop8h 52m

New Orleans Louis Armstrong

mar. 8/19

4:53 pm-12:13 am

1 stop9h 20m

$282

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

mié. 8/20

12:46 pm-8:14 pm

1 stop5h 28m

New Orleans Louis Armstrong

sáb. 8/23

6:35 pm-10:48 pm

1 stop6h 13m

$285

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

mar. 8/5

5:25 am-12:45 pm

1 stop5h 20m

New Orleans Louis Armstrong

mar. 8/19

10:45 am-4:45 pm

2 stops8h 00m

$288

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

lun. 8/4

6:58 pm-5:50 am

1 stop8h 52m

New Orleans Louis Armstrong

sáb. 8/9

4:53 pm-12:13 am

1 stop9h 20m

$289

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

sáb. 7/12

5:21 pm-5:04 pm

1 stop21h 43m

New Orleans Louis Armstrong

jue. 7/17

6:01 pm-9:09 am

1 stop17h 08m

$350

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

dom. 8/31

7:22 pm-5:54 am

1 stop8h 32m

$136

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

vie. 7/4

11:49 am-11:30 pm

1 stop9h 41m

$139

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

lun. 7/7

7:22 pm-1:24 pm

1 stop16h 02m

$140

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 15 results
1
2

Best time to book a flight from Ontario to New Orleans

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

How far ahead should I book a flight from Ontario to New Orleans?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to New Orleans. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from Ontario to New Orleans, you should look to book at least 52 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Ontario to New Orleans (average of $256). Flying from Ontario to New Orleans in April is currently the most expensive (average of $343). 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 MSY?

Find hourly flight availability from Ontario to New Orleans. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

It’s typically best to fly out from Ontario to New Orleans in the evening. Doing so could potentially save you 18% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Ontario to New Orleans?

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

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

Rainfall in New Orleans by month

Plan your trip to New Orleans by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in New Orleans ranges from 3.3 - 6.4 inches per month. June is typically the wettest month, when rainfall can reach 6.4 in. October is typically the driest time to visit New Orleans when rainfall is around 3.3 in.

Temperature in New Orleans by month

Plan your trip to New Orleans by taking into account the average temperature totals by month.

If weather is an important factor for your trip to New Orleans, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing New Orleans

Get insights into the airlines that provide service to New Orleans. 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 New Orleans. Reviews last updated junio 12, 2025.
To help decide which airline to fly from Ontario to New Orleans, see what other customers have to say about Alaska Airlines, Southwest and Delta. 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

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

    United Airlines, at $273, was found to be the cheapest airline from Ontario to New Orleans.Alternate airlines to your destination round-trip include Delta and Hawaiian Airlines. United Airlines is priced at 35% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $136. Users have also found prices from $139 and $142 on Delta and Southwest, respectively.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Ontario to New Orleans (average of $256). Flying from Ontario to New Orleans in April is currently the most expensive (average of $343). 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

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Metairie
Kenner
Slidell
Houma
Covington
Gretna
Thibodaux
Hammond
Gonzales

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to New Orleans

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to New Orleans flights
San Francisco to New Orleans flights
Burbank to New Orleans flights
Santa Ana to New Orleans flights
San Diego to New Orleans flights
Oakland to New Orleans flights
Las Vegas to New Orleans flights
San Jose to New Orleans flights
Sacramento to New Orleans flights
Fresno to New Orleans flights
Los Angeles to Baton Rouge flights
Palm Springs to New Orleans flights
Monterey to New Orleans flights
Long Beach to New Orleans flights
Sacramento to Baton Rouge flights
San Francisco to Baton Rouge flights
San Francisco to Monroe flights
Santa Ana to Baton Rouge flights
Ontario to Shreveport flights
San Francisco to Shreveport flights
Los Angeles to Shreveport flights
Reno to New Orleans flights
Ontario to Baton Rouge flights
Medford to New Orleans flights
Ontario to Lafayette flights
Los Angeles to Lafayette flights
San Francisco to Lafayette flights
Santa Ana to Alexandria flights
Sacramento to Shreveport flights
San Diego to Shreveport flights
Las Vegas to Shreveport flights
Santa Barbara to New Orleans flights
Los Angeles to Lake Charles flights
San Jose to Baton Rouge flights
San Luis Obispo to New Orleans flights
Santa Ana to Shreveport flights
San Diego to Baton Rouge flights
Las Vegas to Monroe flights
Burbank to Baton Rouge flights
Sacramento to Lake Charles flights
Burbank to Shreveport flights
Oakland to Shreveport flights
Ontario to Alexandria flights
Sacramento to Monroe flights
Los Angeles to Alexandria flights
San Jose to Shreveport flights
Oakland to Baton Rouge flights
Santa Ana to Lafayette flights
San Luis Obispo to Shreveport flights

Top 5 airlines flying from Ontario to New Orleans

Discover the top 5 airlines that operate flights from Ontario to New Orleans. 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$114Average$222FlexibilityNo cancel feeOn-time65%
DeltaCheapest$236Average$412FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$272Average$420FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$298Average$477FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$324Average$463FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.