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Baton Rouge

$196+ Cheap flights from Ontario to Baton Rouge (ONT - BTR)

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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BTR
Aug 16 — Aug 231
Sat 8/16
Sat 8/23
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 August 11, 2025.

Round-trip from

$289
(American Airlines)

One-way from

$196
(Delta)

Popular in

December

Cheapest in

November

Average price

$330
From Ontario to Baton Rouge Ryan
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One-way flight from Ontario to Baton Rouge Ryan
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Highest demand for flights based on searches. 2% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 11, 2025.

This American Airlines deal was found by Cheapflights users on 8/9. 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.
Tue 9/211:59 pmONT - BTR
1 stop7h 39mAmerican Airlines
Sat 9/64:31 pmBTR - ONT
1 stop8h 02mAmerican Airlines
Deal found 8/9$289
This Delta deal was found by Cheapflights users on 8/11. 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.
Fri 10/310:00 pmONT - BTR
1 stop9h 07mDelta
Mon 10/63:40 pmBTR - ONT
1 stop8h 42mDelta
Deal found 8/11$314
This Delta deal was found by Cheapflights users on 8/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1210:00 pmONT - BTR
1 stop9h 07mDelta
Wed 9/174:39 pmBTR - ONT
2 stops9h 03mDelta
Deal found 8/9$319
This Delta deal was found by Cheapflights users on 8/11. 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.
Fri 8/2911:45 amONT - BTR
1 stop8h 28mDelta
Mon 9/16:00 amBTR - ONT
1 stop6h 35mDelta
Deal found 8/11$339
This Delta deal was found by Cheapflights users on 8/11. 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.
Sun 11/2310:59 pmONT - BTR
1 stop8h 37mDelta
Fri 11/286:00 amBTR - ONT
1 stop7h 24mDelta
Deal found 8/11$344
This United Airlines deal was found by Cheapflights users on 8/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:04 amONT - BTR
1 stop5h 15mUnited Airlines
Tue 9/163:52 pmBTR - ONT
1 stop7h 33mUnited Airlines
Deal found 8/9$379
This American Airlines deal was found by Cheapflights users on 8/9. 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.
Tue 9/96:10 amONT - BTR
2 stops12h 03mAmerican Airlines
Wed 9/175:30 amBTR - ONT
1 stop6h 34mAmerican Airlines
Deal found 8/9$384
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/46:00 amONT - BTR
2 stops13h 10mUnited Airlines
Mon 9/812:05 pmBTR - ONT
2 stops10h 28mUnited Airlines
Deal found 8/11$389

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 August 11, 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

Tue 9/2

11:59 pm-9:38 am

1 stop7h 39m

Baton Rouge Ryan

Sat 9/6

4:31 pm-10:33 pm

1 stop8h 02m

$289

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Fri 10/3

10:00 pm-9:07 am

1 stop9h 07m

Baton Rouge Ryan

Mon 10/6

3:40 pm-10:22 pm

1 stop8h 42m

$314

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Fri 9/12

10:00 pm-9:07 am

1 stop9h 07m

Baton Rouge Ryan

Wed 9/17

4:39 pm-11:42 pm

2 stops9h 03m

$319

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Fri 8/29

11:45 am-10:13 pm

1 stop8h 28m

Baton Rouge Ryan

Mon 9/1

6:00 am-10:35 am

1 stop6h 35m

$339

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Thu 9/11

6:04 am-1:19 pm

1 stop5h 15m

Baton Rouge Ryan

Tue 9/16

3:52 pm-9:25 pm

1 stop7h 33m

$379

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Tue 9/9

6:10 am-8:13 pm

2 stops12h 03m

Baton Rouge Ryan

Wed 9/17

5:30 am-10:04 am

1 stop6h 34m

$384

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Thu 9/4

6:00 am-9:10 pm

2 stops13h 10m

Baton Rouge Ryan

Mon 9/8

12:05 pm-8:33 pm

2 stops10h 28m

$389

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Thu 9/11

7:05 am-6:06 pm

1 stop9h 01m

Baton Rouge Ryan

Thu 9/18

4:39 pm-10:23 pm

1 stop7h 44m

$413

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sat 8/30

11:45 am-10:13 pm

1 stop8h 28m

$196

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sun 8/31

6:04 am-1:19 pm

1 stop5h 15m

$241

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/10

Showing 1-10 of 18 results
1
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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 $334). Flying from Ontario to Baton Rouge in March is currently the most expensive (average of $455). 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.

How much does it cost to fly round-trip from Ontario to Baton Rouge?

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 August 11, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

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
7,978 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

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
8,922 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

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 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.

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

    Currently priced at $289, American Airlines will fly you from Ontario to Baton Rouge and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Users have found that American Airlines is 39% 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 $334). Flying from Ontario to Baton Rouge in March is currently the most expensive (average of $455). 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
Saint Francisville
McComb
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 August 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$294Average$550FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$338Average$500FlexibilityNo cancel feeOn-time71%

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