HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Baton Rouge

$334+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BTR
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Baton Rouge with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$344
(American Airlines)

One-way from

$334
(Alaska Airlines)

Popular in

May

Cheapest in

November

Average price

$497
Provider with most accurate pricing for Ontario-Baton Rouge Ryan flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Baton Rouge Ryan flights.
Search Deals
From Ontario to Baton Rouge Ryan
Search Deals
One-way flight from Ontario to Baton Rouge Ryan
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($108 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 March 25, 2025.

This American Airlines deal was found by Cheapflights users on 3/24. 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 7/1211:59 pmONT - BTR
1 stop8h 15mAmerican Airlines
Tue 7/1512:19 pmBTR - ONT
2 stops7h 49mAmerican Airlines
Deal found 3/24$344
This Delta deal was found by Cheapflights users on 3/24. 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 6/2910:05 pmONT - BTR
1 stop8h 56mDelta
Wed 7/212:30 pmBTR - ONT
1 stop9h 10mDelta
Deal found 3/24$345
This United Airlines deal was found by Cheapflights users on 3/23. 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 4/36:10 amONT - BTR
1 stop5h 20mUnited Airlines
Mon 4/712:01 pmBTR - ONT
2 stops10h 20mUnited Airlines
Deal found 3/23$474

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 March 25, 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 7/12

11:59 pm-10:14 am

1 stop8h 15m

Baton Rouge Ryan

Tue 7/15

12:19 pm-6:08 pm

2 stops7h 49m

$344

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sun 6/29

10:05 pm-9:01 am

1 stop8h 56m

Baton Rouge Ryan

Wed 7/2

12:30 pm-7:40 pm

1 stop9h 10m

$345

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Thu 4/3

6:10 am-1:30 pm

1 stop5h 20m

Baton Rouge Ryan

Mon 4/7

12:01 pm-8:21 pm

2 stops10h 20m

$474

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Wed 4/16

6:00 am-8:48 pm

2 stops12h 48m

$334

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sun 4/6

12:50 pm-10:45 pm

1 stop7h 55m

$346

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sun 4/6

5:15 pm-9:44 am

2 stops14h 29m

$374

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Wed 4/23

5:00 am-7:23 pm

2 stops12h 23m

$385

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Baton Rouge flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 $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.

Rainfall in Baton Rouge by month

Plan your trip to Baton Rouge by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Baton Rouge ranges from 3.4 - 6.0 inches per month. July is typically the wettest month, when rainfall can reach 6.0 in. October is typically the driest time to visit Baton Rouge when rainfall is around 3.4 in.

Temperature in Baton Rouge by month

Plan your trip to Baton Rouge by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Baton Rouge, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 March 25, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and United Airlines from Ontario to Baton Rouge. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,782 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,890 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,605 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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

    Currently priced at $344, 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. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $345 and $474, respectively. Users have found that American Airlines is 28% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Ontario to Baton Rouge one-way?

    One-way options have recently been found by users for as low as $334 on Alaska Airlines. Other airlines that offer cheap prices include American Airlines from $346 and Delta from $374 one-way.

  • 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 Ontario?

Book flights to Ontario if you plan to visit one of these locations
Denham Springs
Port Allen

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Baton Rouge

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to New Orleans flights
Los Angeles to New Orleans flights
Ontario to New Orleans flights
Burbank to New Orleans flights
San Diego to New Orleans flights
Oakland to New Orleans flights
Santa Ana to New Orleans flights
San Jose to New Orleans flights
Sacramento to New Orleans flights
Las Vegas to New Orleans flights
Fresno to New Orleans flights
Reno to New Orleans flights
Los Angeles to Baton Rouge flights
Palm Springs to New Orleans flights
Long Beach to New Orleans flights
San Francisco to Baton Rouge flights
Sacramento to Shreveport flights
Santa Ana to Baton Rouge flights
San Luis Obispo to New Orleans flights
Ontario to Shreveport flights
Los Angeles to Shreveport flights
San Francisco to Lafayette flights
Los Angeles to Lafayette flights
Fresno to Baton Rouge flights
Sacramento to Baton Rouge flights
Ontario to Lafayette flights
San Francisco to Shreveport flights
San Diego to Shreveport flights
Los Angeles to Monroe flights
Santa Barbara to New Orleans flights
Medford to New Orleans flights
Fresno to Lafayette flights
San Diego to Baton Rouge flights
Sacramento to Lake Charles flights
San Jose to Baton Rouge flights
Burbank to Baton Rouge flights
Santa Ana to Shreveport flights
Santa Rosa to New Orleans flights
San Jose to Shreveport flights
Palm Springs to Shreveport flights
Santa Ana to Lafayette flights
Los Angeles to Lake Charles flights
Las Vegas to Baton Rouge flights
Burbank to Shreveport flights
Ontario to Monroe flights
Sacramento to Lafayette flights
San Diego to Lafayette flights
San Francisco to Lake Charles flights
Los Angeles to Alexandria flights

Top 3 airlines flying from Ontario to Baton Rouge

Discover the top 3 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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$287FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$283Average$403FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$567FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.