HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
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
Tue 4/22
Tue 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisiana to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

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
1
2
3
4

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.
Alaska Airlines
8.0
Very good
9,887 reviews

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 >
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

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 >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

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 >
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

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 >
Hawaiian Airlines
7.9
Good
2,385 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

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 >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

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?

    The most popular flight routes from Louisiana to Ontario are New Orleans Louis Armstrong - Ontario, Shreveport - Ontario and Lafayette Regional - 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Louisiana to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to San Francisco flights
Newark to Las Vegas flights
O'Hare Intl to Las Vegas flights
Seattle to Los Angeles flights
Dallas/Fort Worth to Las Vegas flights
LaGuardia to Los Angeles flights
Hobby to Las Vegas flights
San Jose to Los Angeles flights
Newark to San Francisco flights
Denver to Las Vegas flights
LaGuardia to Las Vegas flights
Seattle to Las Vegas flights
Los Angeles to Las Vegas flights
Reagan-National to Los Angeles flights
Boston to Las Vegas flights
Boston to Los Angeles flights
Dulles Intl to Las Vegas flights
San Francisco to Los Angeles flights
Santa Ana to Las Vegas flights
Atlanta to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
San Francisco to Las Vegas flights
Los Angeles to San Jose flights
Burbank to Las Vegas flights
George Bush Intcntl to Las Vegas flights
Dulles Intl to Los Angeles flights
Los Angeles to San Francisco flights
Oakland to Los Angeles flights
Los Angeles to Oakland flights
Dulles Intl to San Francisco flights
Seattle to San Diego flights
Oakland to Las Vegas flights
Reagan-National to Las Vegas flights
San Francisco to Ontario flights
Newark to Burbank flights
LaGuardia to San Francisco flights
Midway to Las Vegas flights
Baltimore to Las Vegas flights
O'Hare Intl to San Francisco flights
Seattle to Santa Ana flights
O'Hare Intl to Los Angeles flights
Oakland to Santa Ana flights
Dallas/Fort Worth to San Francisco flights
Boston to San Francisco flights
John F Kennedy Intl to Ontario flights
John F Kennedy Intl to San Diego flights
Minneapolis to Las Vegas flights

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%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.