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$92+ Cheap flights from Ontario (ONT) to Louisiana

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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSY
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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Cheap flight deals from Ontario to Louisiana

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

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$189
(Booking.com)

One-way from

$92
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$293
Provider with most accurate pricing for Los Angeles-New Orleans Louis Armstrong flight deals.
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From Ontario to Louisiana
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One-way flight from Ontario to Louisiana
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Highest demand for flights based on searches. 9% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Ontario to Louisiana

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

This Booking.com deal was found by Cheapflights users on 4/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/512:59 amONT - MSY
1 stop14h 26mFrontier
Tue 5/206:24 pmMSY - ONT
1 stop7h 35mFrontier
Deal found 4/14$189
This Expedia deal was found by Cheapflights users on 4/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/106:00 amONT - MSY
1 stop8h 27mMultiple Airlines
Sun 5/117:50 pmMSY - ONT
1 stop6h 09mMultiple Airlines
Deal found 4/15$257
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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.
Tue 10/216:55 pmONT - MSY
1 stop8h 37mAlaska Airlines
Tue 10/283:30 pmMSY - ONT
1 stop9h 07mAlaska Airlines
Deal found 4/14$262
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Tue 5/66:15 amONT - MSY
1 stop6h 53mAmerican Airlines
Sat 5/107:00 amMSY - ONT
1 stop8h 52mAmerican Airlines
Deal found 4/14$273
This Delta deal was found by Cheapflights users on 4/14. 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.
Sat 5/247:05 amONT - MSY
1 stop7h 22mDelta
Tue 5/273:53 pmMSY - ONT
1 stop8h 36mDelta
Deal found 4/14$277
This Delta deal was found by Cheapflights users on 4/15. 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.
Sat 5/107:05 amONT - BTR
1 stop6h 47mDelta
Sun 5/116:00 amBTR - ONT
1 stop7h 08mDelta
Deal found 4/15$289
This United Airlines deal was found by Cheapflights users on 4/15. 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.
Thu 5/11:20 pmONT - SHV
1 stop5h 38mUnited Airlines
Sat 5/104:05 pmSHV - ONT
1 stop7h 55mUnited Airlines
Deal found 4/15$294
This American Airlines deal was found by Cheapflights users on 4/15. 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 5/110:00 amONT - SHV
2 stops8h 17mAmerican Airlines
Sat 5/104:41 pmSHV - ONT
1 stop7h 17mAmerican Airlines
Deal found 4/15$299
This Southwest deal was found by Cheapflights users on 4/15. 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.
Sat 5/109:50 amONT - MSY
2 stops7h 45mSouthwest
Sun 5/116:30 amMSY - ONT
1 stop9h 50mSouthwest
Deal found 4/15$301
This American Airlines deal was found by Cheapflights users on 4/13. 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 5/110:54 amONT - LFT
1 stop4h 56mAmerican Airlines
Sat 5/310:41 amLFT - ONT
1 stop7h 26mAmerican Airlines
Deal found 4/13$339
This Delta deal was found by Cheapflights users on 4/15. 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.
Sat 4/267:00 amONT - SHV
1 stop7h 57mDelta
Tue 4/295:23 pmSHV - ONT
1 stop7h 13mDelta
Deal found 4/15$349
This American Airlines deal was found by Cheapflights users on 4/14. 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 5/242:44 pmONT - BTR
1 stop6h 02mAmerican Airlines
Sat 5/316:23 pmBTR - ONT
1 stop7h 20mAmerican Airlines
Deal found 4/14$353

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Louisiana 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 April 15, 2025.
Use the filters below to find and compare flights from Ontario to Louisiana that are best for you.

Fly from

Ontario

Fly to

Louisiana

Route

Depart

Return

Price

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Mon 5/5

12:59 am-5:25 pm

1 stop14h 26m

New Orleans Louis Armstrong

Tue 5/20

6:24 pm-11:59 pm

1 stop7h 35m

$189

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Sat 5/10

6:00 am-4:27 pm

1 stop8h 27m

New Orleans Louis Armstrong

Sun 5/11

7:50 pm-11:59 pm

1 stop6h 09m

$257

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Tue 5/6

6:15 am-3:08 pm

1 stop6h 53m

New Orleans Louis Armstrong

Sat 5/10

7:00 am-1:52 pm

1 stop8h 52m

$273

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Mon 5/5

6:24 pm-5:55 am

1 stop9h 31m

New Orleans Louis Armstrong

Tue 5/6

5:32 pm-11:58 pm

1 stop8h 26m

$276

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Sat 5/24

7:05 am-4:27 pm

1 stop7h 22m

New Orleans Louis Armstrong

Tue 5/27

3:53 pm-10:29 pm

1 stop8h 36m

$277

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sat 5/10

7:05 am-3:52 pm

1 stop6h 47m

Baton Rouge Ryan

Sun 5/11

6:00 am-11:08 am

1 stop7h 08m

$289

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Thu 5/1

1:20 pm-8:58 pm

1 stop5h 38m

Shreveport

Sat 5/10

4:05 pm-10:00 pm

1 stop7h 55m

$294

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Thu 5/1

10:00 am-8:17 pm

2 stops8h 17m

Shreveport

Sat 5/10

4:41 pm-9:58 pm

1 stop7h 17m

$299

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Sat 5/10

9:50 am-7:35 pm

2 stops7h 45m

New Orleans Louis Armstrong

Sun 5/11

6:30 am-2:20 pm

1 stop9h 50m

$301

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Thu 5/8

6:24 pm-5:55 am

1 stop9h 31m

New Orleans Louis Armstrong

Mon 5/12

5:49 pm-11:58 pm

1 stop8h 09m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 34 results
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Best time to book a flight from Ontario to Louisiana

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

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Louisiana (average of $256). Flying from Ontario to Louisiana 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 LA?

Find hourly flight availability from Ontario to Louisiana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Louisiana as you normally would.

Rainfall in Louisiana by month

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

In terms of precipitation, rainfall in Louisiana ranges from 3.3 - 6.4 inches per month. June is typically the wettest month, when rainfall can reach 6.4 in. October is typically the driest time to visit Louisiana when rainfall is around 3.3 in.

Temperature in Louisiana by month

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

If weather is an important factor for your trip to Louisiana, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Louisiana

Get insights into the airlines that provide service to Louisiana. 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 Louisiana. Reviews last updated April 15, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Ontario to Louisiana 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
9,871 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,871 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,279 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,918 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,375 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,658 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Ontario to Louisiana. 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 from for flights from Ontario to Louisiana?

    For a flight from Ontario to Louisiana, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $96. Users have also found prices from $122 and $137 on Alaska Airlines and Southwest, respectively.

  • What are the most popular routes from Ontario to Louisiana?

    Most travelers choose Ontario - New Orleans Louis Armstrong, Ontario - Shreveport or Ontario - Lafayette Regional when deciding on the best route from Ontario to Louisiana.

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

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

  • How can I find direct flights from Ontario to Louisiana?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Louisiana 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 Louisiana?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Louisiana (average of $256). Flying from Ontario to Louisiana 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

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Alternative routes for Ontario to Louisiana

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 Louisiana

Discover the top 5 airlines that operate flights from Ontario to Louisiana. 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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$110Average$211FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$227Average$438FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$341FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$283Average$444FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$335Average$475FlexibilityNo cancel feeOn-time63%

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