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$275+ 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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — ONT
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap 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 January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$309
(American Airlines)

One-way from

$275
(United Airlines)

Popular in

February

Cheapest in

March

Average price

$418
Provider with most accurate pricing for Baton Rouge Ryan-Ontario flight deals.
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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
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Highest demand for flights based on searches. 6% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 15, 2026.

This American Airlines deal was found by Cheapflights users on 1/14. 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 2/198:11 pm
BTR
-
ONT
1 stop5h 48m
American Airlines
Tue 2/246:00 am
ONT
-
BTR
1 stop7h 57m
American Airlines
Deal found 1/14$309
This Delta deal was found by Cheapflights users on 1/15. 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.
Wed 4/81:36 pm
BTR
-
ONT
1 stop9h 28m
Delta
Tue 4/145:05 pm
ONT
-
BTR
2 stops14h 33m
Delta
Deal found 1/15$354
This American Airlines deal was found by Cheapflights users on 1/14. 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 3/58:11 pm
BTR
-
ONT
1 stop5h 48m
American Airlines
Fri 3/1311:58 pm
ONT
-
BTR
1 stop7h 56m
American Airlines
Deal found 1/14$359
This United Airlines deal was found by Cheapflights users on 1/14. 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.
Thu 2/1912:14 pm
BTR
-
ONT
2 stops12h 43m
United Airlines
Tue 2/248:00 am
ONT
-
BTR
1 stop7h 32m
United Airlines
Deal found 1/14$368
This United Airlines deal was found by Cheapflights users on 1/15. 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 2/45:15 pm
BTR
-
ONT
1 stop6h 44m
United Airlines
Sun 2/86:00 am
ONT
-
BTR
1 stop5h 17m
United Airlines
Deal found 1/15$424
This United Airlines deal was found by Cheapflights users on 1/14. 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.
Thu 1/293:30 pm
BTR
-
ONT
1 stop8h 28m
United Airlines
Mon 2/26:00 am
ONT
-
BTR
1 stop7h 58m
United Airlines
Deal found 1/14$449
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Thu 2/196:07 pm
BTR
-
ONT
1 stop5h 52m
United Airlines
Sun 2/226:00 am
ONT
-
BTR
1 stop7h 33m
United Airlines
Deal found 1/13$464
This American Airlines deal was found by Cheapflights users on 1/14. 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 2/198:11 pm
BTR
-
ONT
1 stop5h 48m
American Airlines
Sun 2/227:00 am
ONT
-
BTR
1 stop6h 57m
American Airlines
Deal found 1/14$466
This United Airlines deal was found by Cheapflights users on 1/15. 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.
Thu 2/53:30 pm
BTR
-
ONT
1 stop8h 28m
United Airlines
Sun 2/86:00 am
ONT
-
BTR
1 stop5h 17m
United Airlines
Deal found 1/15$469
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Fri 4/36:08 pm
BTR
-
ONT
1 stop5h 42m
United Airlines
Tue 4/711:05 am
ONT
-
BTR
2 stops9h 40m
United Airlines
Deal found 1/13$474

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 January 15, 2026.
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 4/8

6:32 pm-10:35 pm

1 stop6h 03m

Ontario

Tue 4/14

2:08 pm-10:51 pm

1 stop6h 43m

$309

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Thu 3/5

4:02 pm-9:05 pm

1 stop7h 03m

Ontario

Fri 3/13

12:50 pm-10:03 pm

1 stop7h 13m

$309

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Wed 4/8

1:36 pm-9:04 pm

1 stop9h 28m

Ontario

Tue 4/14

5:05 pm-9:38 am

2 stops14h 33m

$354

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Thu 3/5

8:11 pm-11:59 pm

1 stop5h 48m

Ontario

Fri 3/13

11:58 pm-9:54 am

1 stop7h 56m

$359

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Wed 2/4

5:15 pm-9:59 pm

1 stop6h 44m

Ontario

Sun 2/8

6:00 am-1:17 pm

1 stop5h 17m

$424

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Thu 2/19

12:14 pm-10:57 pm

2 stops12h 43m

Ontario

Tue 2/24

5:00 am-5:32 pm

2 stops10h 32m

$426

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Thu 2/19

6:07 pm-9:59 pm

1 stop5h 52m

Ontario

Sun 2/22

6:00 am-3:33 pm

1 stop7h 33m

$464

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Thu 2/5

3:30 pm-9:58 pm

1 stop8h 28m

Ontario

Sun 2/8

6:00 am-1:17 pm

1 stop5h 17m

$469

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Sat 4/4

6:08 pm-9:50 pm

1 stop5h 42m

Ontario

Wed 4/8

11:05 am-10:45 pm

2 stops9h 40m

$474

Baton RougeOntario

BTR - ONT

BTRONT

Baton Rouge Ryan

Fri 4/3

6:08 pm-9:50 pm

1 stop5h 42m

Ontario

Tue 4/7

6:00 am-3:32 pm

1 stop7h 32m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 16 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 January.
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 $160). 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 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 January 15, 2026.
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
11,129 reviews

Overall

7.2

Food

6.4

Comfort

7.2

Crew

8.0

Boarding

7.5

Entertainment

6.9

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
11,129 reviews
American Airlines
7.2
Good
11,129 reviews

Overall

7.2

Food

6.4

Comfort

7.2

Crew

8.0

Boarding

7.5

Entertainment

6.9

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 American Airlines and United Airlines fly from Baton Rouge to Ontario in about 5h 48m. The time it takes to get you to your destination can typically vary by up to 6h 55m. The distance between Baton Rouge and Ontario is about 1558 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 41% 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 $160). 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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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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$476FlexibilityNo cancel feeOn-time71%

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