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$115+ 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSY
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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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 July 1, 2025.

Round-trip from

$263
(American Airlines)

One-way from

$115
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$409
From Ontario to New Orleans Louis Armstrong
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One-way flight from Ontario to New Orleans Louis Armstrong
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Highest demand for flights based on searches. 5% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 1, 2025.

This American Airlines deal was found by Cheapflights users on 6/29. 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.
Wed 7/308:15 amONT - MSY
1 stop7h 09mAmerican Airlines
Tue 8/52:39 pmMSY - ONT
1 stop8h 59mAmerican Airlines
Deal found 6/29$263
This CheapOair deal was found by Cheapflights users on 6/29. 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.
Tue 9/168:59 pmONT - MSY
2 stops40h 51mFrontier
Fri 9/264:51 pmMSY - ONT
2 stops29h 03mFrontier
Deal found 6/29$269
This Hawaiian Airlines deal was found by Cheapflights users on 6/30. 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.
Wed 10/2911:39 amONT - MSY
1 stop10h 50mHawaiian Airlines
Tue 11/47:00 amMSY - ONT
1 stop10h 14mHawaiian Airlines
Deal found 6/30$282
This Delta deal was found by Cheapflights users on 7/1. 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.
Tue 11/116:00 amONT - MSY
1 stop5h 52mDelta
Wed 11/122:20 pmMSY - ONT
1 stop7h 22mDelta
Deal found 7/1$283
This United Airlines deal was found by Cheapflights users on 6/29. 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.
Tue 7/291:34 pmONT - MSY
1 stop5h 56mUnited Airlines
Tue 8/53:25 pmMSY - ONT
2 stops9h 27mUnited Airlines
Deal found 6/29$288
This Southwest deal was found by Cheapflights users on 6/30. 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 9/105:45 amONT - MSY
2 stops8h 05mSouthwest
Tue 9/1611:35 amMSY - ONT
2 stops7h 10mSouthwest
Deal found 6/30$293
This Trip.com deal was found by Cheapflights users on 6/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/95:21 pmONT - MSY
1 stop21h 43mMultiple Airlines
Sat 7/1210:24 pmMSY - ONT
2 stops12h 45mMultiple Airlines
Deal found 6/29$297
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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.
Thu 8/76:58 pmONT - MSY
1 stop8h 52mAlaska Airlines
Sat 8/94:53 pmMSY - ONT
1 stop9h 22mAlaska Airlines
Deal found 6/30$299

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 July 1, 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

Wed 7/30

8:15 am-5:24 pm

1 stop7h 09m

New Orleans Louis Armstrong

Tue 8/5

2:39 pm-9:38 pm

1 stop8h 59m

$263

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Tue 9/16

8:59 pm-3:50 pm

2 stops40h 51m

New Orleans Louis Armstrong

Fri 9/26

4:51 pm-7:54 pm

2 stops29h 03m

$269

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Wed 10/29

11:39 am-12:29 am

1 stop10h 50m

New Orleans Louis Armstrong

Tue 11/4

7:00 am-3:14 pm

1 stop10h 14m

$282

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Tue 11/11

6:00 am-1:52 pm

1 stop5h 52m

New Orleans Louis Armstrong

Wed 11/12

2:20 pm-7:42 pm

1 stop7h 22m

$283

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Tue 7/29

1:34 pm-9:30 pm

1 stop5h 56m

New Orleans Louis Armstrong

Tue 8/5

3:25 pm-10:52 pm

2 stops9h 27m

$288

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Wed 9/10

5:45 am-3:50 pm

2 stops8h 05m

New Orleans Louis Armstrong

Tue 9/16

11:35 am-4:45 pm

2 stops7h 10m

$293

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Thu 8/7

6:58 pm-5:50 am

1 stop8h 52m

New Orleans Louis Armstrong

Sat 8/9

4:53 pm-12:15 am

1 stop9h 22m

$299

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Thu 8/21

7:22 pm-5:54 am

1 stop8h 32m

New Orleans Louis Armstrong

Sun 8/24

1:35 pm-11:50 pm

2 stops12h 15m

$324

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Wed 8/6

5:21 pm-5:04 pm

1 stop21h 43m

$115

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Thu 8/14

5:14 pm-5:10 am

1 stop9h 56m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 15 results
1
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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 27, 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 July 1, 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.

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 July 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Ontario to New Orleans to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

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

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

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
4,273 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

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
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,539 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

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
8,858 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

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?

    American Airlines, at $263, was found to be the cheapest airline from Ontario to New Orleans.Alternate airlines to your destination round-trip include Frontier and Hawaiian Airlines. American Airlines is priced at 38% 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 Frontier. According to our data, you can fly for as low as $115. Users have also found prices from $136 and $139 on Hawaiian Airlines and Alaska Airlines, 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

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Alternative routes for Ontario to New Orleans

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$114Average$195FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$272Average$419FlexibilityNo cancel feeOn-time71%
DeltaCheapest$298Average$416FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$475FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$320Average$459FlexibilityNo cancel feeOn-time63%

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