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Baton Rouge

$289+ Cheap flights from Ontario to Baton Rouge (ONT - BTR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BTR
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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Cheap flight deals from Ontario to Baton Rouge

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Baton Rouge (BTR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$289
(Delta)

Popular in

December

Cheapest in

August

Average price

$463
Provider with most accurate pricing for Ontario-Baton Rouge Ryan flight deals.
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Provider most trusted by Cheapflights users for Ontario-Baton Rouge Ryan flights.
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From Ontario to Baton Rouge Ryan
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Ontario to Baton Rouge

Cheapest flights from Ontario to Baton Rouge
Explore the most affordable flight options available from Ontario to Baton Rouge. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2025.

This Delta deal was found by Cheapflights users on 11/8. 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 12/1312:12 pmONT - BTR
1 stop7h 00mDelta
Sat 1/176:18 amBTR - ONT
1 stop7h 36mDelta
Deal found 11/8$289
This United Airlines deal was found by Cheapflights users on 11/8. 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 12/136:00 amONT - BTR
1 stop5h 14mUnited Airlines
Fri 1/163:30 pmBTR - ONT
1 stop8h 28mUnited Airlines
Deal found 11/8$320
This American Airlines deal was found by Cheapflights users on 11/8. 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 11/282:59 pmONT - BTR
1 stop5h 42mAmerican Airlines
Thu 12/47:54 pmBTR - ONT
1 stop6h 01mAmerican Airlines
Deal found 11/8$325
This United Airlines deal was found by Cheapflights users on 11/8. 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 12/136:00 amONT - BTR
1 stop5h 14mUnited Airlines
Thu 1/155:15 pmBTR - ONT
1 stop6h 43mUnited Airlines
Deal found 11/8$379
This American Airlines deal was found by Cheapflights users on 11/10. 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 12/53:04 pmONT - BTR
1 stop5h 47mAmerican Airlines
Thu 12/117:54 pmBTR - ONT
1 stop6h 01mAmerican Airlines
Deal found 11/10$389
This American Airlines deal was found by Cheapflights users on 11/8. 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 12/139:59 amONT - BTR
2 stops8h 47mAmerican Airlines
Fri 1/162:29 pmBTR - ONT
2 stops9h 44mAmerican Airlines
Deal found 11/8$392
This American Airlines deal was found by Cheapflights users on 11/9. 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 12/1210:47 amONT - BTR
1 stop5h 16mAmerican Airlines
Sun 12/147:54 pmBTR - ONT
1 stop6h 01mAmerican Airlines
Deal found 11/9$475
This American Airlines deal was found by Cheapflights users on 11/10. 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 11/256:10 amONT - BTR
1 stop7h 45mAmerican Airlines
Sat 11/296:13 pmBTR - ONT
1 stop6h 18mAmerican Airlines
Deal found 11/10$491

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Baton Rouge 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 November 10, 2025.
Use the filters below to find and compare flights from Ontario to Baton Rouge that are best for you.

Fly from

Ontario

Fly to

Baton Rouge

Route

Depart

Return

Price

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sat 12/13

12:12 pm-9:12 pm

1 stop7h 00m

Baton Rouge Ryan

Sat 1/17

6:18 am-11:54 am

1 stop7h 36m

$289

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sat 2/21

10:20 pm-9:54 am

1 stop9h 34m

Baton Rouge Ryan

Wed 2/25

1:40 pm-9:07 pm

1 stop9h 27m

$289

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sat 12/13

6:00 am-1:14 pm

1 stop5h 14m

Baton Rouge Ryan

Fri 1/16

3:30 pm-9:58 pm

1 stop8h 28m

$320

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sat 12/13

6:00 am-1:14 pm

1 stop5h 14m

Baton Rouge Ryan

Thu 1/15

5:15 pm-9:58 pm

1 stop6h 43m

$379

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Fri 12/5

3:04 pm-10:51 pm

1 stop5h 47m

Baton Rouge Ryan

Thu 12/11

7:54 pm-11:55 pm

1 stop6h 01m

$389

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sat 12/13

5:05 am-5:28 pm

2 stops10h 23m

Baton Rouge Ryan

Sat 1/17

1:55 pm-8:58 pm

2 stops9h 03m

$389

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sat 2/21

11:59 pm-10:01 am

1 stop8h 02m

Baton Rouge Ryan

Wed 2/25

5:00 am-11:41 am

2 stops8h 41m

$434

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Thu 12/18

6:04 am-3:47 pm

1 stop7h 43m

$298

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sat 11/22

7:00 am-3:55 pm

1 stop6h 55m

$433

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sat 11/22

5:05 am-3:21 pm

2 stops8h 16m

$436

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

Showing 1-10 of 15 results
1
2

Compare providers for flights from Ontario to Baton Rouge

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Baton Rouge in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Baton Rouge flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Baton Rouge flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Baton Rouge flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Baton Rouge flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Baton Rouge flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Baton Rouge

Have a flexible travel schedule? Discover the best time to fly to Baton Rouge 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 Baton Rouge

What is the cheapest month to book a flight from Ontario to Baton Rouge?

Currently, August is the cheapest month in which you can book a flight from Ontario to Baton Rouge (average of $78). Flying from Ontario to Baton Rouge in January is currently the most expensive (average of $147). 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.

Reviews of airlines servicing Baton Rouge

Get insights into the airlines that provide service to Baton Rouge. 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 Baton Rouge. Reviews last updated November 10, 2025.
See what other customers who have flown with United Airlines and American Airlines from Ontario to Baton Rouge have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,012 reviews

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
United Airlines
7.4
Good
9,012 reviews
United Airlines
7.4
Good
9,012 reviews

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
American Airlines
7.2
Good
11,045 reviews
United Airlines
7.4
Good
9,012 reviews

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Baton Rouge. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Baton Rouge?

    Airlines like Delta and United Airlines fly from Ontario to Baton Rouge in about 5h 14m. The time it takes to get you to your destination can typically vary by up to 1h 46m. The distance between Ontario and Baton Rouge is about 1558 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Ontario to Baton Rouge round-trip?

    Currently priced at $294, United Airlines will fly you from Ontario to Baton Rouge and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on American Airlines for as low as $338. Users have found that United Airlines is 40% cheaper than the other options available to this destination.

  • Can I find deals for flights from Ontario to Baton Rouge that include hotel bookings?

    Yes. In addition to deals on Ontario to Baton Rouge flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Baton Rouge?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Baton Rouge.

  • Can I find deals for business class flights from Ontario to Baton Rouge?

    Yes. Cheapflights offers flight deals from Ontario to Baton Rouge 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 Baton Rouge?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Baton Rouge (average of $78). Flying from Ontario to Baton Rouge in January is currently the most expensive (average of $147). 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

Traveling to a place near Baton Rouge?

Book flights to Baton Rouge if you plan to visit one of these locations
McComb
Saint Francisville
Denham Springs
Port Allen

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Top 2 airlines flying from Ontario to Baton Rouge

Discover the top 2 airlines that operate flights from Ontario to Baton Rouge. 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 November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$294Average$589FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$338Average$492FlexibilityNo cancel feeOn-time71%

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