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$62+ 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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — ONT
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$140
(CheapOair)

One-way from

$62
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$219
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 ($56 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 February 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 febrero 20, 2025.

This CheapOair deal was found by Cheapflights users on 2/20. 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. 4/107:47 pmMSY - ONT
1 stop15h 35mFrontier
lun. 4/1412:59 amONT - MSY
1 stop15h 48mFrontier
Deal found 2/20$140
This American Airlines deal was found by Cheapflights users on 2/19. 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. 3/136:51 pmSHV - ONT
1 stop7h 03mAmerican Airlines
mié. 3/196:10 amONT - SHV
2 stops9h 21mAmerican Airlines
Deal found 2/19$274
This Delta deal was found by Cheapflights users on 2/19. 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.
mar. 4/86:00 amBTR - ONT
1 stop7h 29mDelta
mar. 4/157:00 amONT - BTR
1 stop7h 59mDelta
Deal found 2/19$289
This American Airlines deal was found by Cheapflights users on 2/20. 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. 4/107:35 pmMSY - ONT
1 stop6h 15mAmerican Airlines
mar. 4/1512:50 pmONT - MSY
1 stop5h 11mAmerican Airlines
Deal found 2/20$295
This Delta deal was found by Cheapflights users on 2/20. 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. 5/157:18 pmMSY - ONT
1 stop6h 27mDelta
mar. 5/2010:59 pmONT - MSY
1 stop7h 57mDelta
Deal found 2/20$297
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
jue. 11/133:30 pmMSY - ONT
1 stop9h 07mAlaska Airlines
lun. 11/176:55 pmONT - MSY
1 stop8h 37mAlaska Airlines
Deal found 2/20$332
This United Airlines deal was found by Cheapflights users on 2/20. 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. 6/172:18 pmMSY - ONT
2 stops10h 27mUnited Airlines
sáb. 6/216:00 amONT - MSY
1 stop5h 16mUnited Airlines
Deal found 2/20$339
This United Airlines deal was found by Cheapflights users on 2/19. 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. 3/1312:17 pmSHV - ONT
2 stops12h 28mUnited Airlines
mié. 3/196:00 amONT - SHV
2 stops12h 43mUnited Airlines
Deal found 2/19$356
This United Airlines deal was found by Cheapflights users on 2/19. 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. 4/294:07 pmLFT - ONT
1 stop7h 51mUnited Airlines
sáb. 5/36:08 amONT - LFT
1 stop7h 23mUnited Airlines
Deal found 2/19$380
This United Airlines deal was found by Cheapflights users on 2/19. 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. 4/85:00 amBTR - ONT
2 stops12h 17mUnited Airlines
mar. 4/156:10 amONT - BTR
1 stop5h 20mUnited Airlines
Deal found 2/19$384
This Delta deal was found by Cheapflights users on 2/20. 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.
mar. 4/13:31 pmSHV - ONT
1 stop9h 12mDelta
dom. 4/612:42 pmONT - SHV
1 stop7h 30mDelta
Deal found 2/20$393
This Southwest deal was found by Cheapflights users on 2/20. 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.
jue. 6/195:00 amMSY - ONT
1 stop5h 55mSouthwest
lun. 6/235:15 amONT - MSY
2 stops7h 40mSouthwest
Deal found 2/20$404

Find flights from Louisiana to Ontario within your budget

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 febrero 20, 2025.

Fly from

Louisiana

Fly to

Ontario

Route

Depart

Return

Price

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

jue. 4/10

7:47 pm-9:22 am

1 stop15h 35m

Ontario

lun. 4/14

12:59 am-6:47 pm

1 stop15h 48m

$140

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

jue. 3/13

6:51 pm-11:54 pm

1 stop7h 03m

Ontario

mié. 3/19

6:10 am-5:31 pm

2 stops9h 21m

$274

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

mar. 4/8

6:00 am-11:29 am

1 stop7h 29m

Ontario

mar. 4/15

7:00 am-4:59 pm

1 stop7h 59m

$289

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

jue. 4/10

7:35 pm-11:50 pm

1 stop6h 15m

Ontario

mar. 4/15

12:50 pm-8:01 pm

1 stop5h 11m

$295

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

jue. 5/15

7:18 pm-11:45 pm

1 stop6h 27m

Ontario

mar. 5/20

10:59 pm-8:56 am

1 stop7h 57m

$297

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

jue. 3/13

12:17 pm-10:45 pm

2 stops12h 28m

Ontario

mié. 3/19

6:00 am-8:43 pm

2 stops12h 43m

$356

New OrleansOntario

MSY - ONT

MSYONT

New Orleans Louis Armstrong

mar. 4/22

8:00 am-3:17 pm

1 stop9h 17m

Ontario

sáb. 4/26

1:35 pm-9:38 pm

1 stop6h 03m

$364

LafayetteOntario

LFT - ONT

LFTONT

Lafayette Regional

mar. 4/29

4:07 pm-9:58 pm

1 stop7h 51m

Ontario

sáb. 5/3

6:08 am-3:31 pm

1 stop7h 23m

$380

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

mar. 4/8

5:00 am-3:17 pm

2 stops12h 17m

Ontario

mar. 4/15

6:10 am-1:30 pm

1 stop5h 20m

$384

ShreveportOntario

SHV - ONT

SHVONT

Shreveport

mar. 4/1

3:31 pm-10:43 pm

1 stop9h 12m

Ontario

dom. 4/6

12:42 pm-10:12 pm

1 stop7h 30m

$393

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 27 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.

Travel insights for flights from Louisiana to Ontario

Get recent, data-driven insights about flights from Louisiana to Ontario including ideal travel times, pricing trends, and more.

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 $315). 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 febrero 20, 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 febrero 20, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

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 $62. Users have also found prices from $139 and $154 on Delta and Southwest, 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, Baton Rouge Ryan - Ontario and Shreveport - 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 $315). 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$120Average$192FlexibilityNo cancel feeOn-time65%
FrontierCheapest$160Average$259FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$214Average$442FlexibilityNo cancel feeOn-time71%
DeltaCheapest$282Average$377FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$316Average$423FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$329Average$399FlexibilityNo cancel feeOn-time69%
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