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$87+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ONT
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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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 mayo 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$247
(Mytrip)

One-way from

$87
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$218
Provider with most accurate pricing for New Orleans Louis Armstrong-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for New Orleans Louis Armstrong-Los Angeles flights.
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From Louisiana to Ontario
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One-way flight from Louisiana to Ontario
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Highest demand for flights based on searches. 16% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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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 mayo 1, 2025.

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.
jue. 5/297:18 pmMSY - ONT
1 stop15h 57mFrontier
mié. 6/45:21 pmONT - MSY
1 stop23h 00mFrontier
Deal found 4/29$211
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/135:32 pmMSY - ONT
1 stop8h 26mAlaska Airlines
mar. 5/207:20 pmONT - MSY
1 stop8h 41mAlaska Airlines
Deal found 4/29$262
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.
mié. 5/216:09 pmMSY - ONT
1 stop5h 48mAmerican Airlines
sáb. 5/2412:41 pmONT - MSY
1 stop5h 17mAmerican Airlines
Deal found 4/29$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.
mié. 7/25:37 pmMSY - ONT
1 stop6h 48mDelta
mar. 7/810:05 pmONT - MSY
1 stop7h 50mDelta
Deal found 4/29$277
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.
jue. 6/193:30 pmMSY - ONT
1 stop7h 40mUnited Airlines
sáb. 6/216:00 amONT - MSY
1 stop8h 09mUnited Airlines
Deal found 4/30$303
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.
jue. 5/293:30 pmBTR - ONT
1 stop8h 59mDelta
vie. 5/3010:00 pmONT - BTR
1 stop9h 09mDelta
Deal found 4/30$308
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.
jue. 5/156:40 pmSHV - ONT
1 stop7h 03mAmerican Airlines
lun. 5/1912:45 pmONT - SHV
1 stop5h 32mAmerican Airlines
Deal found 4/30$319
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.
mar. 6/36:17 pmLFT - ONT
1 stop7h 26mAmerican Airlines
jue. 6/1212:55 pmONT - LFT
2 stops8h 59mAmerican Airlines
Deal found 4/30$349
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.
vie. 6/65:58 pmSHV - ONT
1 stop5h 12mUnited Airlines
sáb. 6/76:00 amONT - SHV
1 stop5h 15mUnited Airlines
Deal found 4/30$349
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.
mar. 7/14:02 pmBTR - ONT
1 stop7h 35mUnited Airlines
vie. 7/116:00 amONT - BTR
1 stop5h 18mUnited Airlines
Deal found 4/29$373
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.
vie. 5/233:27 pmLFT - ONT
1 stop9h 02mDelta
lun. 5/267:05 amONT - LFT
1 stop7h 55mDelta
Deal found 4/29$374
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.
mié. 5/286:23 pmBTR - ONT
1 stop7h 20mAmerican Airlines
mié. 6/42:44 pmONT - BTR
1 stop6h 02mAmerican Airlines
Deal found 4/30$379

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 mayo 1, 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

jue. 5/29

7:18 pm-9:15 am

1 stop15h 57m

Ontario

mié. 6/4

5:21 pm-6:21 pm

1 stop23h 00m

$211

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

mar. 5/13

5:32 pm-11:58 pm

1 stop8h 26m

Ontario

mar. 5/20

7:20 pm-6:01 am

1 stop8h 41m

$262

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

mié. 5/21

6:09 pm-9:57 pm

1 stop5h 48m

Ontario

sáb. 5/24

12:41 pm-7:58 pm

1 stop5h 17m

$273

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

mié. 7/2

5:37 pm-10:25 pm

1 stop6h 48m

Ontario

mar. 7/8

10:05 pm-7:55 am

1 stop7h 50m

$277

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

jue. 6/19

3:30 pm-9:10 pm

1 stop7h 40m

Ontario

sáb. 6/21

6:00 am-4:09 pm

1 stop8h 09m

$303

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

jue. 5/29

3:30 pm-10:29 pm

1 stop8h 59m

Ontario

vie. 5/30

10:00 pm-9:09 am

1 stop9h 09m

$308

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

jue. 5/15

6:40 pm-11:43 pm

1 stop7h 03m

Ontario

lun. 5/19

12:45 pm-8:17 pm

1 stop5h 32m

$319

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

vie. 6/6

5:58 pm-9:10 pm

1 stop5h 12m

Ontario

sáb. 6/7

6:00 am-1:15 pm

1 stop5h 15m

$349

LafayetteOntario

LFT - ONT

LFTONT

Lafayette Regional

mar. 6/3

6:17 pm-11:43 pm

1 stop7h 26m

Ontario

jue. 6/12

12:55 pm-11:54 pm

2 stops8h 59m

$349

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

mar. 7/1

4:02 pm-9:37 pm

1 stop7h 35m

Ontario

vie. 7/11

6:00 am-1:18 pm

1 stop5h 18m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 mayo 1, 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 mayo 1, 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
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

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
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

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
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

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
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

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
2,408 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

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
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

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 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 $99. Users have also found prices from $137 and $138 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 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, 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

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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.
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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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$122Average$205FlexibilityNo cancel feeOn-time65%
FrontierCheapest$160Average$259FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$258Average$411FlexibilityNo cancel feeOn-time71%
DeltaCheapest$282Average$359FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$294Average$415FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$329Average$399FlexibilityNo cancel feeOn-time69%

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