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$271+ Cheap flights from Baton Rouge to Ontario (BTR - 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — ONT
Jan 28 — Feb 41
Wed 1/28
Wed 2/4
1 adult, Economy
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Cheap flight deals from Baton Rouge to Ontario

Cheapest flights from Baton Rouge to Ontario
Explore the most affordable flight options available from Baton Rouge to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 29, 2025.

This United Airlines deal was found by Cheapflights users on 12/27. 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 12/2912:11 pmBTR - ONT
2 stops10h 56mUnited Airlines
Mon 1/56:10 amONT - BTR
1 stop7h 37mUnited Airlines
Deal found 12/27$666
This United Airlines deal was found by Cheapflights users on 12/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:48 pmBTR - ONT
1 stop10h 04mUnited Airlines
Sun 1/46:10 amONT - BTR
1 stop7h 37mUnited Airlines
Deal found 12/28$1,072
This United Airlines deal was found by Cheapflights users on 12/26. 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 12/291:48 pmBTR - ONT
1 stop10h 04mUnited Airlines
Wed 12/316:04 amONT - BTR
1 stop5h 03mUnited Airlines
Deal found 12/26$1,432

Find flight deals from Baton Rouge to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Baton Rouge (BTR) to Ontario (ONT). 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 December 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$314
(United Airlines)

One-way from

$271
(United Airlines)

Popular in

October

Cheapest in

March

Average price

$483
Provider with most accurate pricing for Baton Rouge Ryan-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baton Rouge Ryan-Ontario flights.
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From Baton Rouge Ryan to Ontario
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One-way flight from Baton Rouge Ryan to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Baton Rouge 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 December 29, 2025.
Use the filters below to find and compare flights from Baton Rouge to Ontario that are best for you.

Fly from

Baton Rouge

Fly to

Ontario

Route

Depart

Return

Price

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Wed 1/14

2:19 pm-9:05 pm

1 stop8h 46m

Ontario

Wed 1/21

12:41 pm-10:01 pm

1 stop7h 20m

$334

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Fri 1/16

2:19 pm-9:05 pm

1 stop8h 46m

Ontario

Tue 1/20

10:30 pm-9:52 am

1 stop9h 22m

$334

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Tue 1/13

2:19 pm-9:05 pm

1 stop8h 46m

Ontario

Wed 1/21

12:41 pm-10:01 pm

1 stop7h 20m

$334

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Wed 1/14

6:18 am-11:31 am

1 stop7h 13m

Ontario

Sun 1/18

12:41 pm-10:01 pm

1 stop7h 20m

$334

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Mon 1/12

6:18 am-11:31 am

1 stop7h 13m

Ontario

Tue 1/20

12:41 pm-10:01 pm

1 stop7h 20m

$334

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Mon 1/12

6:18 am-11:31 am

1 stop7h 13m

Ontario

Wed 1/21

12:41 pm-10:01 pm

1 stop7h 20m

$334

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Tue 1/13

2:19 pm-9:05 pm

1 stop8h 46m

Ontario

Tue 1/20

12:41 pm-10:01 pm

1 stop7h 20m

$334

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Fri 1/16

2:19 pm-9:05 pm

1 stop8h 46m

Ontario

Sun 1/18

12:41 pm-10:01 pm

1 stop7h 20m

$334

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Tue 1/13

2:19 pm-9:05 pm

1 stop8h 46m

Ontario

Sun 1/18

12:41 pm-10:01 pm

1 stop7h 20m

$334

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Sat 2/7

10:33 am-6:20 pm

2 stops9h 47m

Ontario

Sat 2/14

12:26 pm-10:39 pm

2 stops8h 13m

$344

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

Showing 1-10 of 19 results
1
2

Compare providers for flights from Baton Rouge to Ontario

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 Baton Rouge to Ontario in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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 Baton Rouge-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Baton Rouge-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Baton Rouge-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baton Rouge-Ontario 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 Baton Rouge-Ontario 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 Baton Rouge to Ontario

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

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

Currently, April is the cheapest month in which you can book a flight from Baton Rouge to Ontario (average of $83). Flying from Baton Rouge to Ontario in January is currently the most expensive (average of $164). 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 BTR to ONT?

Find hourly flight availability from Baton Rouge 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 December 29, 2025.

One of the essential ways to save on airfare from Baton Rouge to Ontario is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 16% on airfare.

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 December 29, 2025.
Read reviews from past customers who have flown American Airlines from Baton Rouge to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,072 reviews

Overall

7.2

Entertainment

6.9

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Oct 2024

MSY - DCA

On time flight. Cabin not cleaned prior to flight. Trash in seat pocket.
American Airlines
7.2
Good
11,072 reviews
American Airlines
7.2
Good
11,072 reviews

Overall

7.2

Entertainment

6.9

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Oct 2024

MSY - DCA

On time flight. Cabin not cleaned prior to flight. Trash in seat pocket.

Related info for your journey

Find useful and relevant information for your journey from Baton Rouge to Ontario. 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 Baton Rouge to Ontario?

    Airlines like Delta fly from Baton Rouge to Ontario in about 8h 46m. The time it takes to get you to your destination can typically vary by up to . The distance between Baton Rouge and Ontario is about 1558 mi.

  • What is the cheapest airline to fly from Baton Rouge to Ontario round-trip?

    Flying on American Airlines is currently your cheapest option to Ontario, with prices starting at $288. American Airlines is 33% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Baton Rouge to Ontario (average of $83). Flying from Baton Rouge to Ontario in January is currently the most expensive (average of $164). 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.

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Alternative routes for Baton Rouge to Ontario

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Top airline flying from Baton Rouge to Ontario

Discover the top airline that operate flights from Baton Rouge 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 December 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$453FlexibilityNo cancel feeOn-time71%

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