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$136+ 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 6/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSY
mar. 30 — abr. 61
dom. 3/30
dom. 4/6
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 marzo 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$258
(American Airlines)

One-way from

$136
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$381
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. 8% potential increase in price ($32 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 March 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 marzo 25, 2025.

This American Airlines deal was found by Cheapflights users on 3/23. 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.
lun. 6/3012:59 amONT - LFT
1 stop7h 07mAmerican Airlines
mar. 9/306:27 pmLFT - ONT
1 stop5h 29mAmerican Airlines
Deal found 3/23$258
This Delta deal was found by Cheapflights users on 3/24. 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.
sáb. 4/2610:15 pmONT - SHV
1 stop9h 54mDelta
mar. 4/293:31 pmSHV - ONT
1 stop9h 05mDelta
Deal found 3/24$264
This United Airlines deal was found by Cheapflights users on 3/24. 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.
mié. 4/165:00 amONT - MSY
1 stop6h 43mUnited Airlines
mié. 4/303:35 pmMSY - ONT
1 stop8h 23mUnited Airlines
Deal found 3/24$273
This American Airlines deal was found by Cheapflights users on 3/24. 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.
sáb. 4/2612:50 pmONT - SHV
1 stop5h 27mAmerican Airlines
mar. 4/2910:02 amSHV - ONT
2 stops10h 25mAmerican Airlines
Deal found 3/24$274
This Delta deal was found by Cheapflights users on 3/24. 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.
mié. 4/2312:07 pmONT - MSY
1 stop9h 26mDelta
mié. 4/305:30 amMSY - ONT
1 stop7h 27mDelta
Deal found 3/24$277
This American Airlines deal was found by Cheapflights users on 3/24. 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.
mié. 4/1612:50 pmONT - MSY
2 stops7h 54mAmerican Airlines
sáb. 4/195:10 amMSY - ONT
2 stops8h 49mAmerican Airlines
Deal found 3/24$283
This Southwest deal was found by Cheapflights users on 3/24. 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.
mar. 5/131:15 pmONT - MSY
1 stop5h 35mSouthwest
jue. 5/225:50 amMSY - ONT
1 stop6h 15mSouthwest
Deal found 3/24$285
This Booking.com deal was found by Cheapflights users on 3/25. 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.
vie. 4/114:25 pmONT - MSY
1 stop24h 32mFrontier
mar. 4/157:47 pmMSY - ONT
1 stop6h 12mFrontier
Deal found 3/25$288
This Alaska Airlines deal was found by Cheapflights users on 3/23. 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.
mar. 10/76:55 pmONT - MSY
1 stop8h 37mAlaska Airlines
mié. 10/83:30 pmMSY - ONT
1 stop9h 07mAlaska Airlines
Deal found 3/23$313
This Hawaiian Airlines deal was found by Cheapflights users on 3/24. 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.
vie. 4/187:17 pmONT - MSY
1 stop8h 17mHawaiian Airlines
mar. 4/225:32 pmMSY - ONT
1 stop8h 26mHawaiian Airlines
Deal found 3/24$314
This American Airlines deal was found by Cheapflights users on 3/24. 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.
sáb. 7/1211:59 pmONT - BTR
1 stop8h 15mAmerican Airlines
mar. 7/1512:19 pmBTR - ONT
2 stops7h 49mAmerican Airlines
Deal found 3/24$344
This United Airlines deal was found by Cheapflights users on 3/24. 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.
mar. 4/156:10 amONT - SHV
1 stop7h 23mUnited Airlines
mar. 4/229:00 amSHV - ONT
1 stop8h 17mUnited Airlines
Deal found 3/24$344

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 marzo 25, 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

OntarioLafayette

ONT - LFT

ONTLFT

Ontario

lun. 6/30

12:59 am-10:06 am

1 stop7h 07m

Lafayette Regional

mar. 9/30

6:27 pm-9:56 pm

1 stop5h 29m

$258

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

sáb. 4/26

10:15 pm-10:09 am

1 stop9h 54m

Shreveport

mar. 4/29

3:31 pm-10:36 pm

1 stop9h 05m

$264

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

mié. 4/16

5:00 am-1:43 pm

1 stop6h 43m

New Orleans Louis Armstrong

mié. 4/30

3:35 pm-9:58 pm

1 stop8h 23m

$273

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

sáb. 4/26

12:50 pm-8:17 pm

1 stop5h 27m

Shreveport

mar. 4/29

10:02 am-6:27 pm

2 stops10h 25m

$274

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

mié. 4/23

12:07 pm-11:33 pm

1 stop9h 26m

New Orleans Louis Armstrong

mié. 4/30

5:30 am-10:57 am

1 stop7h 27m

$277

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

mié. 4/16

12:50 pm-10:44 pm

2 stops7h 54m

New Orleans Louis Armstrong

sáb. 4/19

5:10 am-11:59 am

2 stops8h 49m

$283

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

mar. 5/13

1:15 pm-8:50 pm

1 stop5h 35m

New Orleans Louis Armstrong

jue. 5/22

5:50 am-10:05 am

1 stop6h 15m

$285

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

vie. 4/11

4:25 pm-6:57 pm

1 stop24h 32m

New Orleans Louis Armstrong

mar. 4/15

7:47 pm-11:59 pm

1 stop6h 12m

$288

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

vie. 4/18

7:17 pm-5:34 am

1 stop8h 17m

New Orleans Louis Armstrong

mar. 4/22

5:32 pm-11:58 pm

1 stop8h 26m

$314

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

jue. 5/8

6:24 pm-5:55 am

1 stop9h 31m

New Orleans Louis Armstrong

mié. 5/14

5:32 pm-11:58 pm

1 stop8h 26m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 31 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 marzo 25, 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 marzo 25, 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
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

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
9,782 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

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
4,272 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

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
7,890 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

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
2,330 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

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
8,605 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

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 American Airlines. According to our data, you can fly for as low as $136. Users have also found prices from $146 and $148 on Frontier and Hawaiian Airlines, respectively.

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

    Most travelers choose Ontario - New Orleans Louis Armstrong, Ontario - Baton Rouge Ryan or Ontario - Shreveport 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 6 airlines flying from Ontario to Louisiana

Discover the top 6 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 marzo 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$277FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$117Average$211FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$227Average$453FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$341FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$283Average$446FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$346Average$478FlexibilityNo cancel feeOn-time63%
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