HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$76+ 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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ONT
Jun 2 — Jun 91
Tue 6/2
Tue 6/9
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

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 May 3, 2026.

This Super.com deal was found by Cheapflights users on 4/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:55 pm
MSY
-
ONT
1 stop14h 10m
Frontier
Mon 6/110:50 am
ONT
-
MSY
1 stop8h 20m
Frontier
Deal found 4/28$212
This Gotogate deal was found by Cheapflights users on 5/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/219:55 pm
MSY
-
ONT
1 stop14h 10m
Frontier
Sun 5/246:00 am
ONT
-
MSY
1 stop13h 10m
Frontier
Deal found 5/2$215
This CheapOair deal was found by Cheapflights users on 5/2. 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.
Fri 5/299:55 pm
MSY
-
ONT
1 stop27h 54m
Frontier
Sun 5/316:00 am
ONT
-
MSY
1 stop13h 10m
Frontier
Deal found 5/2$221
This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:46 pm
MSY
-
ONT
1 stop12h 03m
Frontier
Sun 5/1711:36 am
ONT
-
MSY
1 stop7h 15m
Frontier
Deal found 4/30$226
This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:55 pm
MSY
-
ONT
1 stop14h 10m
Frontier
Mon 6/1510:50 am
ONT
-
MSY
1 stop8h 13m
Frontier
Deal found 4/30$231
This CheapOair deal was found by Cheapflights users on 4/29. 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.
Thu 5/289:55 pm
MSY
-
ONT
1 stop14h 10m
Frontier
Sun 8/1610:49 am
ONT
-
MSY
1 stop8h 12m
Frontier
Deal found 4/29$241
This CheapOair deal was found by Cheapflights users on 5/2. 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.
Fri 5/159:55 pm
MSY
-
ONT
1 stop27h 54m
Frontier
Sun 5/1711:36 am
ONT
-
MSY
1 stop7h 15m
Frontier
Deal found 5/2$242
This Booking.com deal was found by Cheapflights users on 4/30. 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 6/89:55 pm
MSY
-
ONT
1 stop14h 10m
Frontier
Fri 6/126:00 am
ONT
-
MSY
1 stop13h 03m
Frontier
Deal found 4/30$243
This CheapOair deal was found by Cheapflights users on 5/1. 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.
Thu 5/149:46 pm
MSY
-
ONT
1 stop23h 46m
Frontier
Sun 5/316:00 am
ONT
-
MSY
1 stop13h 10m
Frontier
Deal found 5/1$246
This United Airlines deal was found by Cheapflights users on 4/29. 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 6/133:35 pm
SHV
-
ONT
1 stop8h 20m
United Airlines
Sat 6/275:00 am
ONT
-
SHV
1 stop7h 18m
United Airlines
Deal found 4/29$329
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/288:20 pm
SHV
-
ONT
1 stop5h 39m
American Airlines
Fri 6/511:59 pm
ONT
-
SHV
1 stop7h 47m
American Airlines
Deal found 5/1$330
This American Airlines deal was found by Cheapflights users on 4/29. 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 7/178:19 pm
SHV
-
ONT
1 stop5h 40m
American Airlines
Tue 7/217:14 pm
ONT
-
SHV
2 stops12h 20m
American Airlines
Deal found 4/29$334

Find flight deals from Louisiana to Ontario

Keep the following information in mind while searching for Louisiana to Ontario flight deals. Data was last updated May 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$215
(Gotogate)

One-way from

$76
(Trip.com)

Popular in

January

Cheapest in

October

Average price

$278
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 ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 May 3, 2026.
Use the filters below to find and compare flights from Louisiana to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AlexandriaOntario

AEX - ONT

AEXONT

Alexandria

Mon 6/15

4:00 pm-9:55 pm

1 stop7h 55m

Ontario

Fri 7/17

5:45 am-3:25 pm

1 stop7h 40m

$344

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Wed 8/12

7:10 am-4:57 pm

1 stop11h 47m

Ontario

Tue 8/25

6:00 am-4:24 pm

1 stop8h 24m

$377

AlexandriaOntario

AEX - ONT

AEXONT

Alexandria

Wed 5/13

10:07 am-6:30 pm

2 stops10h 23m

Ontario

Sun 5/17

11:59 pm-9:37 am

1 stop7h 38m

$394

AlexandriaOntario

AEX - ONT

AEXONT

Alexandria

Wed 5/27

9:43 am-5:28 pm

2 stops9h 45m

Ontario

Mon 6/1

5:45 am-2:50 pm

1 stop7h 05m

$394

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Thu 5/28

7:07 pm-11:34 pm

1 stop6h 27m

Ontario

Sat 6/6

7:05 am-6:01 pm

1 stop8h 56m

$399

AlexandriaOntario

AEX - ONT

AEXONT

Alexandria

Thu 5/28

4:00 pm-9:55 pm

1 stop7h 55m

Ontario

Thu 6/4

5:45 am-2:50 pm

1 stop7h 05m

$408

AlexandriaOntario

AEX - ONT

AEXONT

Alexandria

Mon 6/1

5:40 pm-10:38 pm

1 stop6h 58m

Ontario

Sun 6/14

11:59 pm-10:13 am

1 stop8h 14m

$413

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Sat 5/30

5:20 am-10:57 am

1 stop7h 37m

Ontario

Tue 6/2

10:00 pm-9:33 am

1 stop9h 33m

$418

AlexandriaOntario

AEX - ONT

AEXONT

Alexandria

Wed 7/1

10:44 am-6:21 pm

2 stops9h 37m

Ontario

Mon 7/6

7:14 pm-10:14 am

2 stops13h 00m

$435

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

Fri 5/29

5:20 am-10:57 am

1 stop7h 37m

Ontario

Sat 6/6

10:00 pm-8:01 am

1 stop8h 01m

$438

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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, July is the cheapest month in which you can book a flight from Louisiana to Ontario (average of $158). Flying from Louisiana to Ontario in January is currently the most expensive (average of $414). 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.

How much does it cost to fly round-trip from Louisiana to Ontario?

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.

  • How long is the flight from Louisiana to Ontario?

    For as low as $344, United Airlines can have you in Ontario from Louisiana in 7h 55m. Louisiana and Ontario are separated by a distance of 1464 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $95. Users have also found prices from $118 and $124 on United Airlines and American 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 Baton Rouge Ryan - 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, July is the cheapest month in which you can book a flight from Louisiana to Ontario (average of $158). Flying from Louisiana to Ontario in January is currently the most expensive (average of $414). 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.
Newark to San Francisco flights
John F Kennedy Intl to San Francisco flights
LaGuardia to San Francisco flights
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Newark to Las Vegas flights
Newark to Los Angeles flights
Seattle to Los Angeles flights
Seattle to Las Vegas flights
San Francisco to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
O'Hare Intl to Las Vegas flights
LaGuardia to Los Angeles flights
Dulles Intl to Las Vegas flights
Los Angeles to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
San Francisco to Los Angeles flights
Atlanta to Las Vegas flights
LaGuardia to Las Vegas flights
Los Angeles to San Francisco flights
O'Hare Intl to Los Angeles flights
Seattle to San Francisco flights
Denver to Las Vegas flights
Dallas/Fort Worth to San Francisco flights
San Francisco to Santa Ana flights
Hobby to Las Vegas flights
Reagan-National to Los Angeles flights
Baltimore to Las Vegas flights
Stewart to San Francisco flights
Santa Ana to Las Vegas flights
Boston to Las Vegas flights
Baltimore to Los Angeles flights
Reagan-National to Las Vegas flights
Atlanta to Los Angeles flights
Seattle to Ontario flights
O'Hare Intl to San Francisco flights
Orlando to Las Vegas flights
Dulles Intl to Los Angeles flights
Burbank to Las Vegas flights
Hobby to Los Angeles flights
Boston to Los Angeles flights
John F Kennedy Intl to Ontario flights
Seattle to Santa Ana flights
San Jose to Los Angeles flights
Boston to San Francisco flights
Dulles Intl to San Francisco flights
Ontario to San Francisco flights
Portland to Las Vegas flights
George Bush Intcntl to Las Vegas flights
San Jose to Las Vegas flights

Top 3 airlines flying from Louisiana to Ontario

Discover the top 3 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 May 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$169Average$230FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$210Average$442FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$299Average$423FlexibilityNo cancel feeOn-time63%

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.