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$118+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ONT
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
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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 August 2, 2025.

Round-trip from

$237
(American Airlines)

One-way from

$118
(Alaska Airlines)

Popular in

December

Cheapest in

May

Average price

$233
From Louisiana to Ontario
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One-way flight from Louisiana to Ontario
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Highest demand for flights based on searches. 19% potential increase in price ($68 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 2, 2025.

This American Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 9/47:00 amMSY - ONT
1 stop6h 55mAmerican Airlines
Tue 9/910:53 amONT - MSY
1 stop7h 28mAmerican Airlines
Deal found 7/31$237
This Cheapflightsfares deal was found by Cheapflights users on 7/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:38 pmMSY - ONT
1 stop6h 12mFrontier
Thu 10/3010:51 amONT - MSY
1 stop6h 02mFrontier
Deal found 7/31$254
This Delta deal was found by Cheapflights users on 7/31. 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.
Thu 8/215:15 pmSHV - ONT
1 stop7h 05mDelta
Wed 8/277:05 amONT - SHV
1 stop9h 39mDelta
Deal found 7/31$268
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/57:17 amMSY - ONT
1 stop8h 55mAlaska Airlines
Tue 9/96:00 amONT - MSY
1 stop8h 57mAlaska Airlines
Deal found 8/1$277
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/204:38 pmBTR - ONT
1 stop7h 42mDelta
Wed 8/2711:45 amONT - BTR
1 stop8h 28mDelta
Deal found 7/30$289
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/304:25 pmLFT - ONT
1 stop8h 23mAmerican Airlines
Sat 9/66:10 amONT - LFT
1 stop7h 42mAmerican Airlines
Deal found 8/1$289
This United Airlines deal was found by Cheapflights users on 8/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/309:57 amLFT - ONT
2 stops12h 36mUnited Airlines
Sat 9/65:10 amONT - LFT
2 stops8h 20mUnited Airlines
Deal found 8/1$299
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1511:41 amSHV - ONT
1 stop6h 25mAmerican Airlines
Sat 8/3012:22 pmONT - SHV
2 stops8h 26mAmerican Airlines
Deal found 8/1$299
This United Airlines deal was found by Cheapflights users on 7/31. 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 10/34:10 pmSHV - ONT
1 stop7h 14mUnited Airlines
Tue 10/76:00 amONT - SHV
1 stop7h 29mUnited Airlines
Deal found 7/31$303
This United Airlines deal was found by Cheapflights users on 8/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/63:25 pmMSY - ONT
1 stop8h 00mUnited Airlines
Sat 9/137:00 amONT - MSY
1 stop10h 16mUnited Airlines
Deal found 8/1$327
This Hawaiian Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 10/37:17 amMSY - ONT
1 stop8h 55mHawaiian Airlines
Mon 10/66:00 amONT - MSY
1 stop8h 32mHawaiian Airlines
Deal found 7/31$329
This American Airlines deal was found by Cheapflights users on 7/31. 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 8/2912:19 pmBTR - ONT
1 stop8h 05mAmerican Airlines
Fri 9/52:54 pmONT - BTR
1 stop6h 17mAmerican Airlines
Deal found 7/31$343

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisiana 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 August 2, 2025.
Use the filters below to find and compare flights from Louisiana to Ontario that are best for you.

Fly from

Louisiana

Fly to

Ontario

Route

Depart

Return

Price

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 9/4

7:00 am-11:55 am

1 stop6h 55m

Ontario

Tue 9/9

10:53 am-8:21 pm

1 stop7h 28m

$237

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sun 10/26

7:38 pm-11:50 pm

1 stop6h 12m

Ontario

Thu 10/30

10:51 am-6:53 pm

1 stop6h 02m

$254

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Thu 8/21

5:15 pm-10:20 pm

1 stop7h 05m

Ontario

Wed 8/27

7:05 am-6:44 pm

1 stop9h 39m

$268

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Fri 9/5

7:17 am-2:12 pm

1 stop8h 55m

Ontario

Tue 9/9

6:00 am-4:57 pm

1 stop8h 57m

$277

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Wed 8/20

4:38 pm-10:20 pm

1 stop7h 42m

Ontario

Wed 8/27

11:45 am-10:13 pm

1 stop8h 28m

$289

LafayetteOntario

LFT - ONT

LFTONT

Lafayette Regional

Sat 8/30

4:25 pm-10:48 pm

1 stop8h 23m

Ontario

Sat 9/6

6:10 am-3:52 pm

1 stop7h 42m

$289

LafayetteOntario

LFT - ONT

LFTONT

Lafayette Regional

Sat 8/30

9:57 am-8:33 pm

2 stops12h 36m

Ontario

Sat 9/6

5:10 am-3:30 pm

2 stops8h 20m

$299

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Fri 8/15

11:41 am-4:06 pm

1 stop6h 25m

Ontario

Sat 8/30

12:22 pm-10:48 pm

2 stops8h 26m

$299

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Fri 10/3

4:10 pm-9:24 pm

1 stop7h 14m

Ontario

Tue 10/7

6:00 am-3:29 pm

1 stop7h 29m

$303

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sat 9/6

3:25 pm-9:25 pm

1 stop8h 00m

Ontario

Sat 9/13

7:00 am-7:16 pm

1 stop10h 16m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 29 results
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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?

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 August 2, 2025.

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.

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 August 2, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Louisiana to Ontario to help guide your decision. 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

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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
7,983 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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
8,904 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

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 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?

    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.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $118. Users have also found prices from $124 and $125 on Frontier and American Airlines, respectively.

  • 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, Shreveport - Ontario and Baton Rouge Ryan - 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

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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.
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Top 2 airlines flying from Louisiana to Ontario

Discover the top 2 airlines that operate flights from Louisiana 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 August 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$210Average$389FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$294Average$404FlexibilityNo cancel feeOn-time63%

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