How long is the flight from Louisiana to Ontario?

For as low as $250, Frontier can have you in Ontario from Louisiana in 5h 53m. Louisiana and Ontario are separated by a distance of 1620 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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 routes from Louisiana to Ontario?

The most popular flight routes from Louisiana to Ontario are New Orleans Louis Armstrong - Ontario, Baton Rouge Ryan - Ontario and Shreveport - Ontario.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 60 days in advance, which can save you up to 110% on flights from Louisiana to Ontario compared to booking the week you need them. Waiting 60 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 $208. For sooner than that we have options available in the next 3 days from $379.

What is the cheapest month to fly from Louisiana to Ontario?

The best pricing can be found in the month of May. Prices to Ontario from Louisiana average $278. You can even find prices in May for less than $278, as users have found deals to Ontario from as low as $83. The month of December appears to be one of the more expensive times to travel to Ontario from Louisiana. Flying in the targeted month can save you up to 33%.

What airport do you fly into for flights to Ontario from Louisiana?

Most people fly into Ontario (ONT) if they book a flight to Ontario from Louisiana. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

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

How can I find direct flights from Louisiana to Ontario?

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

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

Yes. Cheapflights offers flight deals from Louisiana 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.

$84+ Cheap Flights from Louisiana to Ontario

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Cheap flight deals from Louisiana to Ontario

Round-trip from	$205 (Frontier)
One-way from	$84 (Kiwi.com)
Popular in	December
Cheapest in	May
Average price	$234

From Louisiana to Ontario

Search Deals

One-way flight from Louisiana to Ontario

Search Deals

Highest demand for flights based on searches. 17% potential increase in price ($61 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Louisiana to Ontario

Cheapest flights from Louisiana to Ontario
Explore the most affordable flight options available from Louisiana to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Thu 11/137:45 pmMSY - ONT

1 stop6h 05mFrontier

Mon 11/176:53 amONT - MSY

1 stop10h 07mFrontier

Deal found 9/15

$204

Thu 10/167:25 pmMSY - ONT

1 stop6h 25mFrontier

Mon 10/276:53 amONT - MSY

1 stop9h 45mFrontier

Deal found 9/14

$205

Fri 11/77:45 pmMSY - ONT

1 stop17h 25mFrontier

Mon 11/106:53 amONT - MSY

1 stop10h 07mFrontier

Deal found 9/14

$214

Thu 10/167:25 pmMSY - ONT

1 stop6h 25mFrontier

Sun 10/266:53 amONT - MSY

1 stop9h 45mFrontier

Deal found 9/14

$223

Thu 11/137:45 pmMSY - ONT

1 stop6h 05mFrontier

Sun 11/166:53 amONT - MSY

1 stop10h 07mFrontier

Deal found 9/15

$224

Thu 11/137:45 pmMSY - ONT

1 stop6h 05mFrontier

Fri 11/146:53 amONT - MSY

1 stop10h 07mFrontier

Deal found 9/15

$227

Thu 10/307:45 pmMSY - ONT

1 stop6h 05mFrontier

Mon 11/36:53 amONT - MSY

1 stop10h 07mFrontier

Deal found 9/13

$236

Mon 11/107:45 pmMSY - ONT

1 stop6h 05mFrontier

Mon 11/176:53 amONT - MSY

1 stop10h 07mFrontier

Deal found 9/15

$237

Wed 9/2410:01 pmMSY - ONT

1 stop22h 34mMultiple Airlines

Wed 10/18:00 amONT - MSY

2 stops11h 06mMultiple Airlines

Deal found 9/13

$238

Fri 10/176:27 pmMSY - ONT

1 stop7h 23mFrontier

Sun 10/266:53 amONT - MSY

1 stop9h 45mFrontier

Deal found 9/14

$241

Wed 10/225:12 pmSHV - ONT

1 stop7h 10mDelta

Tue 10/2811:36 amONT - SHV

1 stop9h 46mDelta

Deal found 9/14

$269

Wed 11/55:30 amBTR - ONT

1 stop6h 27mAmerican Airlines

Tue 11/1110:47 amONT - BTR

1 stop5h 03mAmerican Airlines

Deal found 9/14

$289

Best flights from Louisiana to Ontario
Discover carefully curated flight deals from Louisiana to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2025.

Fri 11/77:45 pmMSY - ONT

1 stop17h 25mFrontier

Mon 11/106:53 amONT - MSY

1 stop10h 07mFrontier

Deal found 9/14

$214

Wed 11/127:00 amMSY - ONT

1 stop10h 17mAlaska Airlines

Sat 11/1511:59 amONT - MSY

1 stop10h 35mAlaska Airlines

Deal found 9/14

$248

Sat 10/182:42 pmMSY - ONT

1 stop5h 53mAmerican Airlines

Sat 10/252:51 pmONT - MSY

1 stop5h 44mAmerican Airlines

Deal found 9/14

$250

Fri 10/248:50 amMSY - ONT

1 stop24h 59mMultiple Airlines

Sun 10/266:53 amONT - MSY

1 stop9h 45mMultiple Airlines

Deal found 9/14

$251

Wed 10/225:12 pmSHV - ONT

1 stop7h 10mDelta

Tue 10/2811:36 amONT - SHV

1 stop9h 46mDelta

Deal found 9/14

$269

Tue 9/307:10 amSHV - ONT

2 stops9h 52mUnited Airlines

Tue 10/71:15 pmONT - SHV

1 stop5h 36mUnited Airlines

Deal found 9/14

$379

Thu 10/307:45 pmMSY - ONT

1 stop6h 05mFrontier

Mon 11/36:53 amONT - MSY

1 stop10h 07mFrontier

Deal found 9/14

$236

Sat 2/216:00 amSHV - ONT

1 stop7h 38mDelta

Wed 2/251:00 pmONT - SHV

1 stop7h 13mDelta

Deal found 9/13

$269

Wed 10/154:52 pmMSY - ONT

1 stop7h 30mDelta

Sat 10/2511:36 amONT - MSY

1 stop6h 41mDelta

Deal found 9/15

$277

Sat 10/185:20 amMSY - ONT

1 stop7h 06mDelta

Sat 10/2511:36 amONT - MSY

1 stop6h 41mDelta

Deal found 9/14

$277

Sat 2/2110:25 amSHV - ONT

2 stops9h 30mAmerican Airlines

Wed 2/256:47 amONT - SHV

1 stop6h 56mAmerican Airlines

Deal found 9/14

$354

Tue 10/215:20 amMSY - ONT

1 stop7h 06mDelta

Tue 10/2811:36 amONT - MSY

1 stop6h 41mDelta

Deal found 9/15

$277

Last-minute flights from Louisiana to Ontario
Discover last-minute flight deals from Louisiana to Ontario. Data last updated September 15, 2025 and is based on user searches.

Wed 9/2410:01 pmMSY - ONT

1 stop22h 34mMultiple Airlines

Wed 10/18:00 amONT - MSY

2 stops11h 06mMultiple Airlines

Deal found 9/13

$238

Sat 10/410:08 amBTR - ONT

1 stop5h 46mAmerican Airlines

Sat 10/112:51 pmONT - BTR

1 stop6h 12mAmerican Airlines

Deal found 9/13

$290

Fri 10/106:27 pmMSY - ONT

1 stop7h 23mFrontier

Mon 10/136:53 amONT - MSY

1 stop9h 45mFrontier

Deal found 9/12

$255

Thu 10/167:25 pmMSY - ONT

1 stop6h 25mFrontier

Mon 10/276:53 amONT - MSY

1 stop9h 45mFrontier

Deal found 9/14

$205

Thu 10/167:25 pmMSY - ONT

1 stop6h 25mFrontier

Sun 10/266:53 amONT - MSY

1 stop9h 45mFrontier

Deal found 9/14

$223

Fri 10/176:27 pmMSY - ONT

1 stop7h 23mFrontier

Mon 10/206:53 amONT - MSY

1 stop9h 45mFrontier

Deal found 9/15

$214

Fri 10/176:27 pmMSY - ONT

1 stop7h 23mFrontier

Sun 10/266:53 amONT - MSY

1 stop9h 45mFrontier

Deal found 9/14

$241

Fri 10/176:27 pmMSY - ONT

1 stop7h 23mFrontier

Sun 10/1910:40 pmONT - MSY

2 stops17h 58mFrontier

Deal found 9/14

$259

Sat 10/182:42 pmMSY - ONT

1 stop5h 53mAmerican Airlines

Sat 10/252:51 pmONT - MSY

1 stop5h 44mAmerican Airlines

Deal found 9/14

$250

Wed 10/225:12 pmSHV - ONT

1 stop7h 10mDelta

Tue 10/2811:36 amONT - SHV

1 stop9h 46mDelta

Deal found 9/14

$269

Fri 10/248:50 amMSY - ONT

1 stop24h 59mMultiple Airlines

Sun 10/266:53 amONT - MSY

1 stop9h 45mMultiple Airlines

Deal found 9/14

$251

Thu 10/307:45 pmMSY - ONT

1 stop6h 05mFrontier

Mon 11/36:53 amONT - MSY

1 stop10h 07mFrontier

Deal found 9/13

$236

One-way flights from Louisiana to Ontario
Search for one-way flight options from Louisiana to Ontario. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

Mon 10/209:42 pmMSY - ONT

1 stop25h 00mMultiple Airlines

Deal found 9/13

$84

Sun 10/199:42 pmMSY - ONT

1 stop12h 05mMultiple Airlines

Deal found 9/13

$96

Sun 11/28:00 amMSY - ONT

1 stop12h 49mMultiple Airlines

Deal found 9/15

$114

Sat 1/178:30 amMSY - ONT

1 stop11h 47mAlaska Airlines

Deal found 9/12

$117

Fri 1/238:30 amMSY - ONT

1 stop11h 47mAlaska Airlines

Deal found 9/12

$119

Wed 10/225:34 pmMSY - ONT

1 stop8h 29mAlaska Airlines

Deal found 9/12

$121

Thu 10/165:34 pmMSY - ONT

1 stop8h 29mAlaska Airlines

Deal found 9/13

$122

Thu 10/235:34 pmMSY - ONT

1 stop8h 29mAlaska Airlines

Deal found 9/14

$124

Sun 10/59:42 pmMSY - ONT

1 stop11h 35mMultiple Airlines

Deal found 9/14

$125

Mon 10/68:04 pmMSY - ONT

1 stop5h 55mAmerican Airlines

Deal found 9/14

$126

Sun 11/23:40 pmBTR - ONT

1 stop8h 42mDelta

Deal found 9/15

$279

Sun 11/234:05 pmSHV - ONT

1 stop7h 44mUnited Airlines

Deal found 9/14

$295

Fly from

Fly to

Route

Depart

Return

Price

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Fri 11/7

7:45 pm-11:10 am

1 stop17h 25m

Ontario

Mon 11/10

6:53 am-7:00 pm

1 stop10h 07m

$214

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 10/30

7:45 pm-11:50 pm

1 stop6h 05m

Ontario

Mon 11/3

6:53 am-7:00 pm

1 stop10h 07m

$236

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 11/12

7:00 am-3:17 pm

1 stop10h 17m

Ontario

Sat 11/15

11:59 am-12:34 am

1 stop10h 35m

$248

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sat 10/18

2:42 pm-6:35 pm

1 stop5h 53m

Ontario

Sat 10/25

2:51 pm-10:35 pm

1 stop5h 44m

$250

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Fri 10/24

8:50 am-7:49 am

1 stop24h 59m

Ontario

Sun 10/26

6:53 am-6:38 pm

1 stop9h 45m

$251

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Wed 10/22

5:12 pm-10:22 pm

1 stop7h 10m

Ontario

Tue 10/28

11:36 am-11:22 pm

1 stop9h 46m

$269

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Sat 2/21

6:00 am-11:38 am

1 stop7h 38m

Ontario

Wed 2/25

1:00 pm-10:13 pm

1 stop7h 13m

$269

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 10/15

4:52 pm-10:22 pm

1 stop7h 30m

Ontario

Sat 10/25

11:36 am-8:17 pm

1 stop6h 41m

$277

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sat 10/18

5:20 am-10:26 am

1 stop7h 06m

Ontario

Sat 10/25

11:36 am-8:17 pm

1 stop6h 41m

$277

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Tue 10/21

5:20 am-10:26 am

1 stop7h 06m

Ontario

Tue 10/28

11:36 am-8:17 pm

1 stop6h 41m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 57 results

...

Best time to book a flight from Louisiana to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Louisiana 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 Louisiana to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Louisiana to Ontario (average of $246). Flying from Louisiana 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 LA to ONT?

When flying from Louisiana to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

What airport do you fly into for flights to Ontario from Louisiana?
Most people fly into Ontario (ONT) if they book a flight to Ontario from Louisiana. Ontario is conveniently located just 3.1 mi from Ontario’s city center.
How long is the flight from Louisiana to Ontario?
For as low as $250, Frontier can have you in Ontario from Louisiana in 5h 53m. Louisiana and Ontario are separated by a distance of 1620 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the most popular routes from Louisiana to Ontario?
The most popular flight routes from Louisiana to Ontario are New Orleans Louis Armstrong - Ontario, Baton Rouge Ryan - Ontario and Shreveport - Ontario.
Can I find deals for flights from Louisiana to Ontario that include hotel bookings?
Yes. In addition to deals on Louisiana to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Louisiana to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisiana to Ontario.
Can I find deals for business class flights from Louisiana to Ontario?
Yes. Cheapflights offers flight deals from Louisiana 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 Louisiana to Ontario?
Currently, August is the cheapest month in which you can book a flight from Louisiana to Ontario (average of $246). Flying from Louisiana 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

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Louisiana to Ontario

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$210	Average$397	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$294	Average$404	FlexibilityNo cancel fee	On-time63%

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$84+ Cheap flights from Louisiana to Ontario (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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Louisiana to Ontario with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

Cheap flight deals from Louisiana to Ontario

Keep the following information in mind while searching for Louisiana to Ontario flight deals. Data was last updated September 15, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Louisiana to Ontario

Cheapest flights from Louisiana to OntarioExplore the most affordable flight options available from Louisiana to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Explore the most affordable flight options available from Louisiana to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Louisiana to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Louisiana with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Louisiana to Ontario

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

What is the cheapest time of day to fly from LA to ONT?

Find hourly flight availability from Louisiana 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 September 15, 2025.

Related info for your journey

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

What airport do you fly into for flights to Ontario from Louisiana?

How long is the flight from Louisiana to Ontario?

What are the most popular routes from Louisiana to Ontario?

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

How can I find direct flights from Louisiana to Ontario?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Louisiana to Ontario

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

Top 2 airlines flying from Louisiana to Ontario

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Cheapest flights from Louisiana to Ontario
Explore the most affordable flight options available from Louisiana to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.