ONT - BTR

$219 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 4/22. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$369
Delta
Sat 4/18Sat 4/25
ONT - BTR • 1 stop
Cheapest one-way
$219
Delta
Wed 4/22
ONT - BTR • 1 stop
Top airlines
Cheapest • from $369 (round-trip)
Best reviews • 7.4 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
Cheapest • Avg $468 (round-trip)
Shortest trip • 6h 10m (one-way)
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Sat, Apr 18 - Sat, Apr 25
Delta Logo
10:15 pm - 9:46 am
ONT
-
BTR
9h 31m
1 stop
Delta Logo
1:37 pm - 6:33 pm
BTR
-
ONT
6h 56m
1 stop
$369Delta
Sat, Apr 18 - Sat, Apr 25
United Airlines Logo
6:05 am - 3:33 pm
ONT
-
BTR
7h 28m
1 stop
United Airlines Logo
5:00 am - 12:38 pm
BTR
-
ONT
9h 38m
2 stops
$374United Airlines
Sat, Apr 18 - Sat, Apr 25
United Airlines Logo
10:49 am - 10:45 pm
ONT
-
BTR
9h 56m
2 stops
United Airlines Logo
2:00 pm - 10:45 pm
BTR
-
ONT
10h 45m
2 stops
$379United Airlines
Thu, May 28 - Sun, May 31
Delta Logo
10:00 pm - 9:45 am
ONT
-
BTR
9h 45m
1 stop
Delta Logo
1:37 pm - 11:34 pm
BTR
-
ONT
11h 57m
2 stops
$399Delta
Fri, Apr 3 - Tue, Apr 7
United Airlines Logo
6:05 am - 3:33 pm
ONT
-
BTR
7h 28m
1 stop
United Airlines Logo
4:08 pm - 9:50 pm
BTR
-
ONT
7h 42m
1 stop
$419United Airlines
Thu, May 28 - Sun, May 31
Delta Logo
10:00 pm - 9:45 am
ONT
-
BTR
9h 45m
1 stop
Delta Logo
1:37 pm - 9:48 pm
BTR
-
ONT
10h 11m
1 stop
$424Delta
Fri, Apr 3 - Tue, Apr 7
United Airlines Logo
5:10 am - 5:33 pm
ONT
-
BTR
10h 23m
2 stops
United Airlines Logo
5:00 am - 12:20 pm
BTR
-
ONT
9h 20m
2 stops
$429United Airlines
Sat, May 9 - Mon, May 18
Delta Logo
10:00 pm - 9:45 am
ONT
-
BTR
9h 45m
1 stop
Delta Logo
3:48 pm - 9:48 pm
BTR
-
ONT
8h 00m
1 stop
$464Delta
Tue, May 5 - Sat, May 9
United Airlines Logo
6:00 am - 1:23 pm
ONT
-
BTR
5h 23m
1 stop
United Airlines Logo
4:06 pm - 9:58 pm
BTR
-
ONT
7h 52m
1 stop
$469United Airlines
Tue, May 5 - Sat, May 9
United Airlines Logo
5:00 am - 7:41 pm
ONT
-
BTR
12h 41m
2 stops
United Airlines Logo
4:06 pm - 9:58 pm
BTR
-
ONT
7h 52m
1 stop
$474United 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.

Which airlines provide the cheapest flights from Ontario to Baton Rouge?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Ontario to Baton Rouge were found on Delta ($369) and United Airlines ($374).

Good to know

Low seasonAugust
Cheapest flight$219
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 7% 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 $219 for a one-way ticket and $369 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 $530 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 $465 and an overall rating of 7.1.

  • 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 9461 reviews
6.6Food
7.3Comfort
7.7Boarding
7.1Entertainment
8.1Crew
Airline reviews

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

2.0 MediocreLa Vetra, Mar 2026
LAX - IAH
Read more United Airlines reviews

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

OK, we were delayed and had to de plane and reboard.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

Terrible planning. And even worse gate agents. Absolutely rude behavior.

Flight was scheduled at 11:26am but they keep Delaying until midnight. They waited at airport restless.

Rough flight No beverage service due to turbulence Bottom Seat cushion was non existent

Not good. One of my luggage is missing. And until now they can’t find it

My 9:50AM flight was delayed to 3:40PM "due to incoming aircraft delay". No aircraft is "delayed" that long. Found out once we did board (after several changes in times) that the aircraft had a maintenance issue and we had to wait for another aircraft. Just tell us that. The aircraft we did get was old and the seats need to be updated. I have been traveling for several weeks with AA and you should refresh your entertainment content as frequent flyers have gone through most of your new content. I have Celiac and a shellfish allergy and continue to have struggles with meals on business and first class flights. Please keep this in mind. Sorry - was a long travel day yesterday and a bit cranky this morning with my experience comments. Still an AA fan.

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

Dloght delayed by 2.5 hrs . Common theme in my last four american floghts

They are rarely on time! Very hard to plan your travels when flights or connections keep getting delayed.

My seat was assigned last row behind restrooms No legroom’s I’m very Pettit Still was not comfortable Food choice was excellent

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

Information on your arrival and departure airports