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 $274. Other airlines that can offer you cheap pricing are Hawaiian Airlines, from $282, and Frontier, from $291. Users have found that American Airlines is 25% 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 $111. Users have also found prices from $138 and $141 on American Airlines and Alaska Airlines, respectively.

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

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

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.

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).

What are the most popular airlines that fly from New Orleans to Ontario?

The most popular airlines flying from New Orleans to Ontario are American Airlines, Spirit Airlines and Southwest. Something to consider prior to booking your flight.

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

Users have found that flying from New Orleans to Ontario on a Friday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 48 days in advance, which can save you up to 99% on flights from New Orleans to Ontario compared to booking the week you need them. Waiting 48 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $222. For sooner than that we have options available in the next 3 days from $400.

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

The best pricing can be found in the month of May. Prices to Ontario from New Orleans average $291. You can even find prices in May for less than $291, as users have found deals to Ontario from as low as $84. The month of December appears to be one of the more expensive times to travel to Ontario from New Orleans. Flying in the targeted month can save you up to 29%.

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.

$111+ Flights from New Orleans to Ontario

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Cheap flight deals from New Orleans to Ontario

Round-trip from	$274 (American Airlines)
One-way from	$111 (FlightHub)
Popular in	December
Cheapest in	June
Average price	$377

From New Orleans Louis Armstrong to Ontario

Search Deals

One-way flight from New Orleans Louis Armstrong to Ontario

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($7 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 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 July 3, 2025.

Thu 9/1110:45 amMSY - ONT

1 stop15h 14mAmerican Airlines

Wed 9/172:54 pmONT - MSY

1 stop5h 54mAmerican Airlines

Deal found 7/1

$274

Thu 10/97:38 pmMSY - ONT

1 stop6h 12mFrontier

Sat 10/1112:59 amONT - MSY

2 stops36h 57mFrontier

Deal found 6/30

$281

Wed 8/67:10 amMSY - ONT

1 stop9h 36mHawaiian Airlines

Sat 8/96:51 pmONT - MSY

1 stop8h 59mHawaiian Airlines

Deal found 7/1

$282

Sat 10/113:30 pmMSY - ONT

1 stop6h 25mSouthwest

Tue 10/211:30 pmONT - MSY

2 stops7h 00mSouthwest

Deal found 7/1

$288

Thu 7/316:01 pmMSY - ONT

1 stop7h 49mMultiple Airlines

Thu 8/76:58 pmONT - MSY

1 stop8h 52mMultiple Airlines

Deal found 7/1

$295

Wed 8/275:25 amMSY - ONT

1 stop7h 10mDelta

Mon 9/16:05 amONT - MSY

1 stop6h 16mDelta

Deal found 7/2

$300

Tue 8/127:10 amMSY - ONT

1 stop9h 36mAlaska Airlines

Wed 8/206:00 amONT - MSY

1 stop8h 57mAlaska Airlines

Deal found 7/3

$316

Tue 7/294:00 pmMSY - ONT

1 stop6h 54mUnited Airlines

Tue 8/56:00 amONT - MSY

1 stop5h 13mUnited Airlines

Deal found 7/1

$373

Best flights from New Orleans to Ontario
Discover carefully curated flight deals from New Orleans to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Thu 9/1110:45 amMSY - ONT

1 stop15h 14mAmerican Airlines

Wed 9/172:54 pmONT - MSY

1 stop5h 54mAmerican Airlines

Deal found 7/1

$274

Wed 8/67:10 amMSY - ONT

1 stop9h 36mHawaiian Airlines

Sat 8/96:51 pmONT - MSY

1 stop8h 59mHawaiian Airlines

Deal found 7/1

$282

Thu 7/316:01 pmMSY - ONT

1 stop7h 49mFrontier

Thu 8/76:00 amONT - MSY

2 stops9h 04mFrontier

Deal found 7/1

$291

Thu 7/316:01 pmMSY - ONT

1 stop7h 49mMultiple Airlines

Thu 8/76:58 pmONT - MSY

1 stop8h 52mMultiple Airlines

Deal found 7/1

$295

Wed 8/275:25 amMSY - ONT

1 stop7h 10mDelta

Mon 9/16:05 amONT - MSY

1 stop6h 16mDelta

Deal found 7/2

$300

Tue 8/127:10 amMSY - ONT

1 stop9h 36mAlaska Airlines

Wed 8/206:00 amONT - MSY

1 stop8h 57mAlaska Airlines

Deal found 7/3

$316

Sat 8/167:20 amMSY - ONT

2 stops9h 00mSouthwest

Mon 8/185:50 amONT - MSY

2 stops10h 15mSouthwest

Deal found 7/3

$328

Tue 7/294:00 pmMSY - ONT

1 stop6h 54mUnited Airlines

Tue 8/56:00 amONT - MSY

1 stop5h 13mUnited Airlines

Deal found 7/1

$373

Last-minute flights from New Orleans to Ontario
Discover last-minute flight deals from New Orleans to Ontario. Data last updated July 3, 2025 and is based on user searches.

Wed 7/97:10 amMSY - ONT

1 stop9h 36mAlaska Airlines

Wed 7/166:58 pmONT - MSY

1 stop8h 52mAlaska Airlines

Deal found 7/2

$648

Wed 7/912:31 pmMSY - ONT

1 stop8h 49mDelta

Sun 7/137:05 amONT - MSY

1 stop9h 11mDelta

Deal found 7/2

$683

Wed 7/92:36 pmMSY - ONT

1 stop8h 18mUnited Airlines

Wed 7/165:05 amONT - MSY

2 stops9h 08mUnited Airlines

Deal found 7/2

$695

Thu 7/106:01 pmMSY - ONT

1 stop7h 49mFrontier

Wed 7/165:21 pmONT - MSY

1 stop21h 43mFrontier

Deal found 7/1

$312

Thu 7/106:05 amMSY - ONT

1 stop5h 55mSouthwest

Wed 7/162:10 pmONT - MSY

2 stops7h 45mSouthwest

Deal found 7/1

$605

Tue 7/294:00 pmMSY - ONT

1 stop6h 54mUnited Airlines

Tue 8/56:00 amONT - MSY

1 stop5h 13mUnited Airlines

Deal found 7/1

$373

Thu 7/316:01 pmMSY - ONT

1 stop7h 49mFrontier

Thu 8/76:00 amONT - MSY

2 stops9h 04mFrontier

Deal found 7/1

$291

Thu 7/316:01 pmMSY - ONT

1 stop7h 49mMultiple Airlines

Thu 8/76:58 pmONT - MSY

1 stop8h 52mMultiple Airlines

Deal found 7/1

$295

Wed 8/67:10 amMSY - ONT

1 stop9h 36mHawaiian Airlines

Sat 8/96:51 pmONT - MSY

1 stop8h 59mHawaiian Airlines

Deal found 7/1

$282

Tue 8/127:10 amMSY - ONT

1 stop9h 36mAlaska Airlines

Wed 8/206:00 amONT - MSY

1 stop8h 57mAlaska Airlines

Deal found 7/3

$316

Sat 8/167:16 amMSY - ONT

1 stop6h 36mAmerican Airlines

Mon 8/1811:59 pmONT - MSY

1 stop18h 15mAmerican Airlines

Deal found 7/3

$292

Sat 8/167:20 amMSY - ONT

2 stops9h 00mSouthwest

Mon 8/185:50 amONT - MSY

2 stops10h 15mSouthwest

Deal found 7/3

$328

One-way flights from New Orleans to Ontario
Search for one-way flight options from New Orleans to Ontario. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Thu 8/76:01 pmMSY - ONT

1 stop7h 49mFrontier

Deal found 6/30

$111

Thu 9/49:37 amMSY - ONT

1 stop14h 56mAmerican Airlines

Deal found 7/1

$138

Tue 8/194:53 pmMSY - ONT

1 stop9h 22mAlaska Airlines

Deal found 7/1

$141

Sat 8/164:53 pmMSY - ONT

1 stop9h 22mHawaiian Airlines

Deal found 7/2

$159

Sat 8/210:24 pmMSY - ONT

1 stop22h 50mMultiple Airlines

Deal found 7/2

$172

Sun 8/318:25 amMSY - ONT

1 stop6h 07mUnited Airlines

Deal found 6/30

$182

Sun 8/243:06 pmMSY - ONT

1 stop9h 14mDelta

Deal found 7/1

$189

Cheapflights Fare Finder

Use the filters below to find and compare flights from New Orleans to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 9/11

10:45 am-11:59 pm

1 stop15h 14m

Ontario

Wed 9/17

2:54 pm-10:48 pm

1 stop5h 54m

$274

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 8/6

7:10 am-2:46 pm

1 stop9h 36m

Ontario

Sat 8/9

6:51 pm-5:50 am

1 stop8h 59m

$282

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 7/31

6:01 pm-11:50 pm

1 stop7h 49m

Ontario

Thu 8/7

6:00 am-5:04 pm

2 stops9h 04m

$291

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 7/31

6:01 pm-11:50 pm

1 stop7h 49m

Ontario

Thu 8/7

6:58 pm-5:50 am

1 stop8h 52m

$295

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 8/27

5:25 am-10:35 am

1 stop7h 10m

Ontario

Mon 9/1

6:05 am-2:21 pm

1 stop6h 16m

$300

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Tue 8/12

7:10 am-2:46 pm

1 stop9h 36m

Ontario

Wed 8/20

6:00 am-4:57 pm

1 stop8h 57m

$316

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sat 8/16

7:20 am-2:20 pm

2 stops9h 00m

Ontario

Mon 8/18

5:50 am-6:05 pm

2 stops10h 15m

$328

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Tue 7/29

4:00 pm-8:54 pm

1 stop6h 54m

Ontario

Tue 8/5

6:00 am-1:13 pm

1 stop5h 13m

$373

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 8/7

6:01 pm-11:50 pm

1 stop7h 49m

$111

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 9/4

9:37 am-10:33 pm

1 stop14h 56m

$138

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 15 results

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?

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

Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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.

Alaska Airlines

8.0

Very good

10,000 reviews

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

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

4,266 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

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

7,982 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

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

2,545 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

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

8,861 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

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

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 $274. Other airlines that can offer you cheap pricing are Hawaiian Airlines, from $282, and Frontier, from $291. Users have found that American Airlines is 25% 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 $111. Users have also found prices from $138 and $141 on American Airlines 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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Other flights to Ontario

Top 3 airlines flying from New Orleans to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$120	Average$217	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$290	Average$416	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$294	Average$408	FlexibilityNo cancel fee	On-time63%

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$111+ 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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from New Orleans to Ontario with Cheapflights

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Cheap flight deals from New Orleans to Ontario

Round-trip from

One-way from

Popular in

Cheapest in

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Find flight deals from New Orleans to Ontario

Cheapest flights from New Orleans to OntarioExplore 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 July 3, 2025.

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 July 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from New Orleans to Ontario that are best for you.

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.

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?

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 July 3, 2025.

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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.

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?

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

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

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

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

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

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 New Orleans to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from New Orleans to Ontario

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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 July 3, 2025.