HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisiana

$95+ 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 6/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSY
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Louisiana 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 Ontario to Louisiana

Keep the following information in mind while searching for Ontario to Louisiana flight deals. Data was last updated May 1, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$208
(Booking.com)

One-way from

$95
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$302
Provider with most accurate pricing for Los Angeles-New Orleans Louis Armstrong flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-New Orleans Louis Armstrong flights.
Search Deals
From Ontario to Louisiana
Search Deals
One-way flight from Ontario to Louisiana
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

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 1, 2025.

This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/512:59 amONT - MSY
1 stop14h 26mFrontier
Tue 5/136:24 pmMSY - ONT
1 stop7h 35mFrontier
Deal found 4/29$208
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.
Sat 7/511:59 pmONT - SHV
1 stop7h 54mAmerican Airlines
Sat 7/198:27 pmSHV - ONT
1 stop5h 27mAmerican Airlines
Deal found 4/29$239
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:55 pmONT - MSY
1 stop8h 37mAlaska Airlines
Fri 10/173:30 pmMSY - ONT
1 stop9h 07mAlaska Airlines
Deal found 4/30$262
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/146:00 amONT - MSY
1 stop9h 28mUnited Airlines
Wed 5/285:30 pmMSY - ONT
1 stop5h 40mUnited Airlines
Deal found 4/30$273
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/206:00 amONT - MSY
1 stop7h 38mDelta
Tue 5/274:35 pmMSY - ONT
1 stop9h 07mDelta
Deal found 4/29$277
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2810:59 pmONT - BTR
1 stop8h 31mDelta
Sun 8/316:00 amBTR - ONT
1 stop7h 07mDelta
Deal found 4/29$283
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/256:00 amONT - SHV
1 stop7h 30mUnited Airlines
Mon 7/75:58 pmSHV - ONT
1 stop5h 39mUnited Airlines
Deal found 4/30$286
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/237:05 amONT - LFT
1 stop7h 55mDelta
Tue 5/276:00 amLFT - ONT
1 stop7h 08mDelta
Deal found 4/29$289
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/112:59 amONT - BTR
1 stop8h 27mAmerican Airlines
Sat 8/1610:48 amBTR - ONT
1 stop7h 18mAmerican Airlines
Deal found 4/28$289
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/292:44 pmONT - MSY
1 stop7h 31mAmerican Airlines
Mon 6/26:09 pmMSY - ONT
1 stop5h 48mAmerican Airlines
Deal found 4/30$303
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/236:00 amONT - BTR
1 stop7h 27mUnited Airlines
Mon 6/304:02 pmBTR - ONT
1 stop7h 35mUnited Airlines
Deal found 4/30$306
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2312:18 pmONT - SHV
1 stop8h 31mDelta
Fri 5/306:00 amSHV - ONT
1 stop7h 08mDelta
Deal found 4/30$318

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 1, 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

Mon 5/12

12:59 am-5:25 pm

1 stop14h 26m

New Orleans Louis Armstrong

Tue 5/20

6:24 pm-11:59 pm

1 stop7h 35m

$208

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Sat 7/5

11:59 pm-9:53 am

1 stop7h 54m

Shreveport

Sat 7/19

8:27 pm-11:54 pm

1 stop5h 27m

$239

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Tue 10/14

6:55 pm-5:32 am

1 stop8h 37m

New Orleans Louis Armstrong

Fri 10/17

3:30 pm-10:37 pm

1 stop9h 07m

$262

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Wed 5/14

6:00 am-5:28 pm

1 stop9h 28m

New Orleans Louis Armstrong

Wed 5/28

5:30 pm-9:10 pm

1 stop5h 40m

$273

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Tue 5/20

6:00 am-3:38 pm

1 stop7h 38m

New Orleans Louis Armstrong

Sat 5/31

5:32 pm-11:08 pm

1 stop7h 36m

$277

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Thu 8/28

10:59 pm-9:30 am

1 stop8h 31m

Baton Rouge Ryan

Sun 8/31

6:00 am-11:07 am

1 stop7h 07m

$283

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Wed 6/25

6:00 am-3:30 pm

1 stop7h 30m

Shreveport

Mon 7/7

5:58 pm-9:37 pm

1 stop5h 39m

$286

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Fri 8/1

12:59 am-11:26 am

1 stop8h 27m

Baton Rouge Ryan

Sat 8/16

10:48 am-4:06 pm

1 stop7h 18m

$289

OntarioLafayette

ONT - LFT

ONTLFT

Ontario

Fri 5/23

7:05 am-5:00 pm

1 stop7h 55m

Lafayette Regional

Tue 5/27

6:00 am-11:08 am

1 stop7h 08m

$289

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Thu 5/29

10:53 am-6:46 pm

1 stop5h 53m

New Orleans Louis Armstrong

Sun 6/1

7:00 am-11:50 am

1 stop6h 50m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 38 results
1
2
3
4

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 1, 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 1, 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
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

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
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

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
4,294 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

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
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

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
2,409 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

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 $116. Users have also found prices from $124 and $129 on Alaska Airlines and Delta, 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

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 Ontario to Louisiana

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

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 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$110Average$214FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$227Average$439FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$373FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$283Average$457FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$336Average$473FlexibilityNo 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.