ONT - BTR

$279 Find Cheap Flights from Ontario to Baton Rouge

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Baton Rouge departing on 12/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Baton Rouge

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Baton Rouge, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Baton Rouge, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Ontario to Baton Rouge (ONT-BTR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Baton Rouge that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Baton Rouge

Sat, Feb 21 - Wed, Feb 25
Delta Logo
10:30 pm - 9:44 amONT-BTR
9h 14m1 stop
Delta Logo
1:40 pm - 9:14 pmBTR-ONT
9h 34m1 stop
$289Delta
Find Deal
Sat, Feb 7 - Sun, Feb 15
Delta Logo
10:30 pm - 9:44 amONT-BTR
9h 14m1 stop
Delta Logo
6:00 am - 11:38 amBTR-ONT
7h 38m1 stop
$314Delta
Find Deal
Sat, Feb 7 - Sat, Feb 14
Delta Logo
10:30 pm - 9:44 amONT-BTR
9h 14m1 stop
Delta Logo
1:40 pm - 9:14 pmBTR-ONT
9h 34m1 stop
$339Delta
Find Deal
Wed, Nov 19 - Wed, Nov 26
United Airlines Logo
6:00 am - 5:28 pmONT-BTR
9h 28m2 stops
United Airlines Logo
6:09 pm - 9:49 pmBTR-ONT
5h 40m1 stop
$352United Airlines
Find Deal
Tue, Feb 10 - Thu, Feb 19
United Airlines Logo
6:00 am - 1:17 pmONT-BTR
5h 17m1 stop
United Airlines Logo
6:07 pm - 9:59 pmBTR-ONT
5h 52m1 stop
$379United Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
American Airlines Logo
6:46 am - 4:15 pmONT-BTR
7h 29m2 stops
American Airlines Logo
6:07 pm - 11:43 pmBTR-ONT
7h 36m1 stop
$384American Airlines
Find Deal
Wed, Nov 19 - Wed, Nov 26
American Airlines Logo
3:08 pm - 10:55 pmONT-BTR
5h 47m1 stop
American Airlines Logo
7:56 pm - 11:57 pmBTR-ONT
6h 01m1 stop
$408American Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
6:00 am - 1:18 pmONT-BTR
5h 18m1 stop
United Airlines Logo
2:09 pm - 10:57 pmBTR-ONT
10h 48m2 stops
$409United Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
American Airlines Logo
6:46 am - 4:15 pmONT-BTR
7h 29m2 stops
American Airlines Logo
12:24 pm - 9:40 pmBTR-ONT
11h 16m2 stops
$439American Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
American Airlines Logo
10:38 am - 10:02 pmONT-BTR
9h 24m2 stops
American Airlines Logo
12:24 pm - 9:40 pmBTR-ONT
11h 16m2 stops
$489American Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $289 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 39% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$289
Overall average: $588
Delta
Sat 2/21Wed 2/25
ONT - BTR • 1 stop
Cheapest one-way
$279
American Airlines
Sat 12/20
ONT - BTR • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Baton Rouge!
Booking Insights

KAYAK's insights & trends for Ontario to Baton Rouge flights

Get data-powered insights and trends into flights from Ontario to Baton Rouge to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to Baton Rouge?

The average price of all round-trip flights from Ontario to Baton Rouge clicked on KAYAK for each day over the last 12 months.

For Ontario to Baton Rouge, Monday is the cheapest day to fly on average and Friday is the most expensive. Flying from Baton Rouge back to Ontario, the best deals are generally found on Wednesday, with Friday being the most expensive.

What is the cheapest month to fly from Ontario to Baton Rouge?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Baton Rouge, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Baton Rouge is November, where tickets cost $288 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $650 and $588 respectively.

Good to know

Low seasonSeptember
Cheapest flight$279
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Ontario to Baton Rouge

When to book flights from Ontario to Baton Rouge

Are your dates flexible? Find out the best times to travel from Ontario to Baton Rouge based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Baton Rouge

  • What is the cheapest flight from Ontario to Baton Rouge?

    In the last 3 days, the lowest price for a flight from Ontario to Baton Rouge was $279 for a one-way ticket and $289 for a round-trip.

  • Do I need a passport to fly between Ontario and Baton Rouge?

    No, a passport isn't needed to fly from Ontario to Baton Rouge. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Ontario to Baton Rouge?

    Ontario airport is called Ontario and the only airport in Baton Rouge is Baton Rouge Ryan.

  • Which aircraft models fly most regularly from Ontario to Baton Rouge?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Baton Rouge?

    Star Alliance, and oneworld are the airline alliances operating flights between Ontario and Baton Rouge, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Baton Rouge, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Baton Rouge are United Airlines and American Airlines. With an average price for the route of $550 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $494 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Ontario to Baton Rouge?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Baton Rouge.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Baton Rouge?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Baton Rouge from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Baton Rouge?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Baton Rouge with an airline and back to Ontario with another airline. Booking your flights between Ontario and BTR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Baton Rouge?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Baton Rouge from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Ontario to Baton Rouge

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Baton Rouge. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Baton Rouge? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8991 reviews
7.3Comfort
7.7Boarding
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

10.0 ExcellentAllen S., Oct 2025LAX - LAS
Read more United Airlines reviews

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Boarded plane and then delayed 1.5 hours while on the plane

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

Was not able to watch most shows on the entertainment site. They would not load

Everything you need to know for your flight from Ontario to Baton Rouge

Information on your arrival and departure airports

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