ONT - BTR

$264 Find Cheap Flights from Ontario to Baton Rouge - Compare and Save

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 10/10. 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, 0 bags

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Everything you should know

Cheapest round-trip
$349
Typical prices: $418-$651
Delta
Mon 7/20Mon 7/27
ONT - BTR • 1 stop
Cheapest one-way
$264
United Airlines
Sat 10/10
ONT - BTR • 1 stop
Top airlines
Delta
Cheapest • from $349 (round-trip)
American Airlines
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Baton Rouge. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Atlanta (ATL)
Cheapest • Avg $448 (round-trip)
Dallas (DFW)
Shortest trip • 6h 12m (one-way)
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 100% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Baton Rouge!
Flight Deals
Booking Insights
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

Mon, Jul 20 - Mon, Jul 27
Delta Logo
10:00 pm - 9:39 am
ONT
-
BTR
9h 39m
1 stop
Delta Logo
4:00 pm - 9:50 pm
BTR
-
ONT
7h 50m
1 stop
$349Delta
Fri, Sep 18 - Mon, Sep 21
United Airlines Logo
7:13 pm - 11:13 am
ONT
-
BTR
14h 00m
2 stops
United Airlines Logo
6:14 pm - 9:59 pm
BTR
-
ONT
5h 45m
1 stop
$354United Airlines
Mon, Jul 20 - Tue, Jul 28
Delta Logo
10:00 pm - 9:39 am
ONT
-
BTR
9h 39m
1 stop
Delta Logo
1:27 pm - 6:30 pm
BTR
-
ONT
7h 03m
1 stop
$374Delta
Sat, Aug 15 - Fri, Aug 21
American Airlines Logo
6:15 am - 8:06 pm
ONT
-
BTR
11h 51m
2 stops
American Airlines Logo
8:08 am - 1:31 pm
BTR
-
ONT
7h 23m
1 stop
$388American Airlines
Tue, Jul 21 - Sat, Jul 25
Delta Logo
10:00 pm - 9:39 am
ONT
-
BTR
9h 39m
1 stop
Delta Logo
1:27 pm - 6:30 pm
BTR
-
ONT
7h 03m
1 stop
$399Delta
Sat, Aug 8 - Sat, Aug 15
Delta Logo
12:00 pm - 8:46 pm
ONT
-
BTR
6h 46m
1 stop
Delta Logo
1:27 pm - 6:30 pm
BTR
-
ONT
7h 03m
1 stop
$424Delta
Sun, Jul 19 - Mon, Jul 27
Delta Logo
10:00 pm - 9:39 am
ONT
-
BTR
9h 39m
1 stop
Delta Logo
4:00 pm - 9:50 pm
BTR
-
ONT
7h 50m
1 stop
$429Delta
Tue, Jul 21 - Wed, Jul 22
Delta Logo
10:00 pm - 9:39 am
ONT
-
BTR
9h 39m
1 stop
Delta Logo
4:00 pm - 9:50 pm
BTR
-
ONT
7h 50m
1 stop
$433Delta
Sat, Aug 15 - Fri, Aug 21
Delta Logo
5:05 pm - 9:39 am
ONT
-
BTR
14h 34m
2 stops
Delta Logo
3:57 pm - 11:34 pm
BTR
-
ONT
9h 37m
2 stops
$434Delta
Sat, Jul 25 - Mon, Jul 27
American Airlines Logo
1:11 pm - 10:07 pm
ONT
-
BTR
6h 56m
2 stops
American Airlines Logo
7:36 pm - 11:59 pm
BTR
-
ONT
6h 23m
1 stop
$435American Airlines
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 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 $0 (return) on average. On the other hand, the most expensive months are May and April, where the average cost of round-trip tickets is $749 and $716 respectively.

Find deals

Good to know

Low seasonAugust
Cheapest flight$264
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly and prices are also 23% 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 5 days, the lowest price for a flight from Ontario to Baton Rouge was $264 for a one-way ticket and $349 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?

    oneworld is the only airline alliance operating flights between Ontario and Baton Rouge.

  • 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 airline 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.
7.1
American AirlinesOverall score based on 11764 reviews
6.8Entertainment
7.9Crew
6.4Food
7.5Boarding
7.2Comfort
Airline reviews

Trash. Sat on the runway for 40 mins…missed connecting flight because of it now I’m stuck. Thanks…a whole fkn lot.

2.0 MediocreMichael, Jun 2026
MIA - MSY
Read more American Airlines reviews

Trash. Sat on the runway for 40 mins…missed connecting flight because of it now I’m stuck. Thanks…a whole fkn lot.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

One day, I do so hope for a gluten free snack! Seems like with the rest of the world FINALLY figuring out what gluten free is, American Airlines would too. Fingers crossed!!

The flight was on time and arrived early. The crew were friendly and helpful.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Same problems with delays in Dallas. This was weather related and due to the incoming flight being delayed. This was the flight that was delayed due to a missing flashlight which turned out not to be missing.

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

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

Information on your arrival and departure airports

Ontario (ONT)
Baton Rouge (BTR)