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$122+ 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ONT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$283
(Delta)

One-way from

$122
(FlightHub)

Popular in

September

Cheapest in

June

Average price

$259
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. 11% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:25 amMSY - ONT
1 stop7h 10mDelta
Tue 8/267:05 amONT - MSY
1 stop8h 48mDelta
Deal found 6/11$283
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.
Sat 8/94:53 pmMSY - ONT
1 stop9h 20mHawaiian Airlines
Mon 8/116:58 pmONT - MSY
1 stop8h 52mHawaiian Airlines
Deal found 6/12$289
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/196:01 pmMSY - ONT
1 stop7h 49mFrontier
Sat 6/2112:59 amONT - MSY
1 stop14h 07mFrontier
Deal found 6/12$308
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/227:21 amMSY - ONT
2 stops18h 32mAlaska Airlines
Wed 8/2711:39 amONT - MSY
1 stop16h 15mAlaska Airlines
Deal found 6/12$323
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/47:05 amMSY - ONT
1 stop6h 54mAmerican Airlines
Thu 7/1012:46 pmONT - MSY
1 stop5h 44mAmerican Airlines
Deal found 6/11$356
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.
Fri 9/125:20 pmMSY - ONT
1 stop7h 10mSouthwest
Sun 9/141:50 pmONT - MSY
1 stop5h 05mSouthwest
Deal found 6/12$367
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/125:15 pmMSY - ONT
1 stop6h 10mUnited Airlines
Sun 9/146:50 pmONT - MSY
2 stops11h 55mUnited Airlines
Deal found 6/12$372

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 June 12, 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

Wed 8/20

5:03 pm-10:20 pm

1 stop7h 17m

Ontario

Wed 8/27

6:05 am-2:07 pm

1 stop6h 02m

$283

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sat 8/9

4:53 pm-12:13 am

1 stop9h 20m

Ontario

Mon 8/11

6:58 pm-5:50 am

1 stop8h 52m

$289

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Fri 8/22

7:21 am-11:53 pm

2 stops18h 32m

Ontario

Wed 8/27

11:39 am-5:54 am

1 stop16h 15m

$323

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sun 6/29

6:01 pm-9:01 am

1 stop17h 00m

Ontario

Wed 7/2

5:21 pm-5:06 pm

1 stop21h 45m

$348

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Fri 7/4

7:05 am-11:59 am

1 stop6h 54m

Ontario

Thu 7/10

12:46 pm-8:30 pm

1 stop5h 44m

$356

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Fri 9/12

5:20 pm-10:30 pm

1 stop7h 10m

Ontario

Sun 9/14

1:50 pm-8:55 pm

1 stop5h 05m

$367

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Fri 9/12

5:15 pm-9:25 pm

1 stop6h 10m

Ontario

Sun 9/14

6:50 pm-8:45 am

2 stops11h 55m

$372

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 10/9

7:38 pm-11:50 pm

1 stop6h 12m

$122

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sat 7/5

5:37 pm-10:25 pm

1 stop6h 48m

$139

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 8/6

7:10 am-2:46 pm

1 stop9h 36m

$141

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 15 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 $328). 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 June 12, 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.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from New Orleans to Ontario. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

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

Boarding

8.1

Comfort

7.8

Food

7.1

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

Boarding

8.1

Comfort

7.8

Food

7.1

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

Boarding

8.1

Comfort

7.8

Food

7.1

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

Boarding

8.1

Comfort

7.8

Food

7.1

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

Boarding

8.1

Comfort

7.8

Food

7.1

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 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.

  • 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 $283. Other airlines that can offer you cheap pricing are Hawaiian Airlines, from $289, and Alaska Airlines, from $323. Users have found that Delta is 24% 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 $122. Users have also found prices from $139 and $141 on Delta and Alaska Airlines, 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, 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 $328). 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 5 airlines flying from New Orleans to Ontario

Discover the top 5 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$120Average$217FlexibilityNo cancel feeOn-time65%
FrontierCheapest$160Average$259FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$290Average$396FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$294Average$414FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$369Average$398FlexibilityNo cancel feeOn-time69%

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