Ontario

$89+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ONT
Apr 22 — Apr 291
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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 April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$181
(CheapOair)

One-way from

$89
(Frontier)

Popular in

December

Cheapest in

May

Average price

$250
Provider with most accurate pricing for New Orleans Louis Armstrong-Los Angeles flight deals.
Provider most trusted by Cheapflights users for New Orleans Louis Armstrong-Los Angeles flights.
From Louisiana to Ontario
One-way flight from Louisiana to Ontario
Highest demand for flights based on searches. 17% potential increase in price ($60 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in April 2025

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 April 17, 2025.

This CheapOair deal was found by Cheapflights users on 4/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/206:24 pmMSY - ONT
1 stop7h 35mFrontier
Sat 5/245:21 pmONT - MSY
1 stop22h 57mFrontier
Deal found 4/17$181
This Delta deal was found by Cheapflights users on 4/17. 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 7/26:00 amMSY - ONT
1 stop6h 57mDelta
Sat 7/511:49 amONT - MSY
1 stop6h 26mDelta
Deal found 4/17$277
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Tue 5/205:00 amMSY - ONT
2 stops9h 24mUnited Airlines
Sat 5/241:33 pmONT - MSY
1 stop5h 47mUnited Airlines
Deal found 4/17$278
This American Airlines deal was found by Cheapflights users on 4/17. 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 5/2011:39 amMSY - ONT
2 stops8h 44mAmerican Airlines
Sat 5/241:14 pmONT - MSY
2 stops9h 01mAmerican Airlines
Deal found 4/17$283
This Delta deal was found by Cheapflights users on 4/17. 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 5/33:31 pmSHV - ONT
1 stop9h 05mDelta
Wed 8/1310:59 pmONT - SHV
1 stop9h 04mDelta
Deal found 4/17$294
This United Airlines deal was found by Cheapflights users on 4/17. 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 5/39:01 amSHV - ONT
1 stop5h 37mUnited Airlines
Wed 8/135:05 amONT - SHV
2 stops8h 25mUnited Airlines
Deal found 4/17$299
This American Airlines deal was found by Cheapflights users on 4/17. 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 6/68:25 pmSHV - ONT
1 stop5h 34mAmerican Airlines
Wed 6/116:23 amONT - SHV
2 stops11h 32mAmerican Airlines
Deal found 4/17$323
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 9/117:21 amMSY - ONT
1 stop8h 45mAlaska Airlines
Mon 9/156:00 amONT - MSY
1 stop8h 48mAlaska Airlines
Deal found 4/16$327
This Delta deal was found by Cheapflights users on 4/16. 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.
Tue 11/186:00 amBTR - ONT
1 stop7h 24mDelta
Thu 12/412:00 pmONT - BTR
1 stop8h 00mDelta
Deal found 4/16$341
This Southwest deal was found by Cheapflights users on 4/16. 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.
Sun 6/87:10 pmMSY - ONT
1 stop6h 55mSouthwest
Thu 6/129:20 pmONT - MSY
1 stop9h 15mSouthwest
Deal found 4/16$366
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Tue 11/182:02 pmBTR - ONT
2 stops10h 33mUnited Airlines
Thu 12/45:40 amONT - BTR
2 stops10h 01mUnited Airlines
Deal found 4/16$412
This United Airlines deal was found by Cheapflights users on 4/17. 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 5/24:07 pmLFT - ONT
1 stop7h 53mUnited Airlines
Tue 5/66:08 amONT - LFT
1 stop5h 13mUnited Airlines
Deal found 4/17$439

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 April 17, 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

Tue 5/20

6:24 pm-11:59 pm

1 stop7h 35m

Ontario

Sat 5/24

5:21 pm-6:18 pm

1 stop22h 57m

$181

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 7/2

6:00 am-10:57 am

1 stop6h 57m

Ontario

Sat 7/5

11:49 am-8:15 pm

1 stop6h 26m

$277

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Tue 5/20

5:00 am-12:24 pm

2 stops9h 24m

Ontario

Sat 5/24

1:33 pm-9:20 pm

1 stop5h 47m

$278

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Tue 5/20

11:39 am-6:23 pm

2 stops8h 44m

Ontario

Sat 5/24

1:14 pm-12:15 am

2 stops9h 01m

$283

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Tue 5/6

5:32 pm-11:58 pm

1 stop8h 26m

Ontario

Thu 5/8

6:24 pm-5:55 am

1 stop9h 31m

$291

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Sat 5/3

3:31 pm-10:36 pm

1 stop9h 05m

Ontario

Wed 8/13

10:59 pm-10:03 am

1 stop9h 04m

$294

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Sat 5/3

9:01 am-12:38 pm

1 stop5h 37m

Ontario

Wed 8/13

5:05 am-3:30 pm

2 stops8h 25m

$299

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

Fri 6/6

8:25 pm-11:59 pm

1 stop5h 34m

Ontario

Wed 6/11

6:23 am-7:55 pm

2 stops11h 32m

$323

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sun 6/8

7:10 pm-12:05 am

1 stop6h 55m

Ontario

Thu 6/12

9:20 pm-8:35 am

1 stop9h 15m

$366

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Thu 7/3

12:27 pm-7:54 pm

1 stop9h 27m

Ontario

Mon 7/7

10:59 pm-9:30 am

1 stop8h 31m

$393

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 31 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 April 17, 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.

Rainfall in Ontario by month

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

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.

Temperature in Ontario by month

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

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).

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 April 17, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Louisiana to Ontario. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Boarding

8.1

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Boarding

8.1

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
8.0
Very good

Boarding

8.1

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Boarding

8.1

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Boarding

8.1

Comfort

7.9

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 Frontier. According to our data, you can fly for as low as $89. Users have also found prices from $110 and $124 on American Airlines and Alaska Airlines, respectively.

  • What are the most popular routes from Louisiana to 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

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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 6 airlines flying from Louisiana to Ontario

Discover the top 6 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$120Average$192FlexibilityNo cancel feeOn-time65%
FrontierCheapest$160Average$259FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$214Average$438FlexibilityNo cancel feeOn-time71%
DeltaCheapest$282Average$359FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$294Average$416FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$329Average$399FlexibilityNo cancel feeOn-time69%

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