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$106+ 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSY
May 17 — May 241
Sat 5/17
Sat 5/24
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 May 12, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$250
(Booking.com)

One-way from

$106
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$307
Provider with most accurate pricing for Los Angeles-New Orleans Louis Armstrong flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-New Orleans Louis Armstrong flights.
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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. 8% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 5/12. 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.
Thu 11/1310:51 amONT - MSY
1 stop6h 02mFrontier
Mon 11/177:38 pmMSY - ONT
1 stop6h 12mFrontier
Deal found 5/12$228
This Expedia deal was found by Cheapflights users on 5/12. 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.
Thu 5/294:45 pmONT - MSY
1 stop11h 16mMultiple Airlines
Sun 6/17:21 pmMSY - ONT
1 stop6h 29mMultiple Airlines
Deal found 5/12$261
This American Airlines deal was found by Cheapflights users on 5/11. 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 6/2012:59 amONT - SHV
1 stop6h 46mAmerican Airlines
Mon 6/308:25 pmSHV - ONT
1 stop5h 34mAmerican Airlines
Deal found 5/11$269
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Mon 5/266:00 amONT - MSY
1 stop5h 16mUnited Airlines
Fri 5/302:20 pmMSY - ONT
1 stop10h 06mUnited Airlines
Deal found 5/12$273
This Delta deal was found by Cheapflights users on 5/10. 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 5/2412:18 pmONT - MSY
1 stop8h 28mDelta
Sat 5/315:32 pmMSY - ONT
1 stop7h 36mDelta
Deal found 5/10$277
This Delta deal was found by Cheapflights users on 5/11. 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.
Fri 7/1110:05 pmONT - BTR
1 stop8h 39mDelta
Tue 7/154:40 pmBTR - ONT
1 stop7h 47mDelta
Deal found 5/11$289
This American Airlines deal was found by Cheapflights users on 5/12. 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 5/2310:51 amONT - MSY
1 stop7h 07mAmerican Airlines
Sun 5/255:12 amMSY - ONT
1 stop8h 38mAmerican Airlines
Deal found 5/12$296
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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
Tue 8/127:10 amMSY - ONT
1 stop9h 36mAlaska Airlines
Deal found 5/11$302
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Wed 5/281:33 pmONT - SHV
1 stop5h 29mUnited Airlines
Mon 6/25:58 pmSHV - ONT
1 stop5h 12mUnited Airlines
Deal found 5/12$343
This Hawaiian Airlines deal was found by Cheapflights users on 5/12. 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 6/117:20 pmONT - MSY
1 stop8h 41mHawaiian Airlines
Mon 6/237:10 amMSY - ONT
1 stop9h 36mHawaiian Airlines
Deal found 5/12$358
This United Airlines deal was found by Cheapflights users on 5/10. 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 5/246:00 amONT - BTR
1 stop7h 22mUnited Airlines
Sat 5/314:02 pmBTR - ONT
1 stop7h 08mUnited Airlines
Deal found 5/10$367
This American Airlines deal was found by Cheapflights users on 5/11. 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 5/296:15 amONT - BTR
1 stop5h 34mAmerican Airlines
Sun 6/15:30 amBTR - ONT
1 stop6h 20mAmerican Airlines
Deal found 5/11$373

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 May 12, 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

Sat 5/24

5:21 pm-6:18 pm

1 stop22h 57m

New Orleans Louis Armstrong

Thu 5/29

7:18 pm-11:51 pm

1 stop6h 33m

$250

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Thu 5/29

4:45 pm-6:01 am

1 stop11h 16m

New Orleans Louis Armstrong

Sun 6/1

7:21 pm-11:50 pm

1 stop6h 29m

$261

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Fri 6/20

12:59 am-9:45 am

1 stop6h 46m

Shreveport

Mon 6/30

8:25 pm-11:59 pm

1 stop5h 34m

$269

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Mon 5/26

6:00 am-1:16 pm

1 stop5h 16m

New Orleans Louis Armstrong

Fri 5/30

2:20 pm-10:26 pm

1 stop10h 06m

$273

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Sat 5/24

12:18 pm-10:46 pm

1 stop8h 28m

New Orleans Louis Armstrong

Fri 5/30

5:25 am-11:08 am

1 stop7h 43m

$277

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Fri 7/11

10:05 pm-8:44 am

1 stop8h 39m

Baton Rouge Ryan

Tue 7/15

4:40 pm-10:27 pm

1 stop7h 47m

$289

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Fri 5/23

10:51 am-7:58 pm

1 stop7h 07m

New Orleans Louis Armstrong

Sun 5/25

5:12 am-11:50 am

1 stop8h 38m

$296

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Thu 8/7

6:58 pm-5:50 am

1 stop8h 52m

New Orleans Louis Armstrong

Tue 8/12

7:10 am-2:46 pm

1 stop9h 36m

$302

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Wed 5/28

1:33 pm-9:02 pm

1 stop5h 29m

Shreveport

Mon 6/2

5:58 pm-9:10 pm

1 stop5h 12m

$343

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Wed 6/11

7:20 pm-6:01 am

1 stop8h 41m

New Orleans Louis Armstrong

Mon 6/23

7:10 am-2:46 pm

1 stop9h 36m

$358

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Showing 1-10 of 37 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 May 12, 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 May 12, 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
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

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

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

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
4,290 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,431 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

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
8,724 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

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 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 $121. Users have also found prices from $136 and $137 on Alaska Airlines and American Airlines, respectively.

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

    Most travelers choose Ontario - New Orleans Louis Armstrong, Ontario - Shreveport or Ontario - Baton Rouge Ryan 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 May 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$110Average$205FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$227Average$441FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$378FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$283Average$459FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$333Average$472FlexibilityNo cancel feeOn-time63%

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