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Find cheap one-way flights from Baton Rouge to Ontario starting at US$194.

For as little as US$194, you can take your next adventure to Ontario without breaking the bank. Choose between one-way and return tickets from Baton Rouge below.

  • One way
  • Round-trip
      • BTR06:00
        7h 29m
        1 stop
        ONT11:29
        Tue, Apr 8|Baton Rouge - Ontario|Delta Air Lines
        US$194US$273
        28% OFF
        28% OFF
        US$273US$194

        Choose Delta Air Lines flights from Baton Rouge to Ontario.The one-way connecting flight with Delta Air Lines departs from BTR Airport on Tue, Apr 8, arriving at Ontario International Airport.One-way Prices start from US$194 including taxes and charges.

      • BTR17:45
        6h 58m
        1 stop
        ONT22:43
        Thu, Mar 20|Baton Rouge - Ontario|Delta Air Lines
        US$195US$273
        28% OFF
        28% OFF
        US$273US$195

        Choose Delta Air Lines flights from Baton Rouge to Ontario.The one-way connecting flight with Delta Air Lines departs from BTR Airport on Thu, Mar 20, arriving at Ontario International Airport.One-way Prices start from US$195 including taxes and charges.

      • BTR17:45
        6h 58m
        1 stop
        ONT22:43
        Fri, Mar 14|Baton Rouge - Ontario|Delta Air Lines
        US$198US$273
        27% OFF
        27% OFF
        US$273US$198

        Choose Delta Air Lines flights from Baton Rouge to Ontario.The one-way connecting flight with Delta Air Lines departs from BTR Airport on Fri, Mar 14, arriving at Ontario International Airport.One-way Prices start from US$198 including taxes and charges.

      • BTR17:45
        6h 58m
        1 stop
        ONT22:43
        Mon, Mar 17|Baton Rouge - Ontario|Delta Air Lines
        US$198
        US$198

        Choose Delta Air Lines flights from Baton Rouge to Ontario.The one-way connecting flight with Delta Air Lines departs from BTR Airport on Mon, Mar 17, arriving at Ontario International Airport.One-way Prices start from US$198 including taxes and charges.

      • BTR17:45
        6h 58m
        1 stop
        ONT22:43
        Wed, Mar 12|Baton Rouge - Ontario|Delta Air Lines
        US$199
        US$199

        Choose Delta Air Lines flights from Baton Rouge to Ontario.The one-way connecting flight with Delta Air Lines departs from BTR Airport on Wed, Mar 12, arriving at Ontario International Airport.One-way Prices start from US$199 including taxes and charges.

      • BTR15:15
        9h 28m
        1 stop
        ONT22:43
        Sat, Mar 22|Baton Rouge - Ontario|Delta Air Lines
        US$199
        US$199

        Choose Delta Air Lines flights from Baton Rouge to Ontario.The one-way connecting flight with Delta Air Lines departs from BTR Airport on Sat, Mar 22, arriving at Ontario International Airport.One-way Prices start from US$199 including taxes and charges.

      • BTR17:45
        6h 58m
        1 stop
        ONT22:43
        Wed, Mar 19|Baton Rouge - Ontario|Delta Air Lines
        US$200
        US$200

        Choose Delta Air Lines flights from Baton Rouge to Ontario.The one-way connecting flight with Delta Air Lines departs from BTR Airport on Wed, Mar 19, arriving at Ontario International Airport.One-way Prices start from US$200 including taxes and charges.

      • BTR06:00
        6h 57m
        1 stop
        ONT10:57
        Wed, Apr 16|Baton Rouge - Ontario|Delta Air Lines
        US$200
        US$200

        Choose Delta Air Lines flights from Baton Rouge to Ontario.The one-way connecting flight with Delta Air Lines departs from BTR Airport on Wed, Apr 16, arriving at Ontario International Airport.One-way Prices start from US$200 including taxes and charges.

      • BTR17:45
        6h 58m
        1 stop
        ONT22:43
        Wed, Mar 26|Baton Rouge - Ontario|Delta Air Lines
        US$201
        US$201

        Choose Delta Air Lines flights from Baton Rouge to Ontario.The one-way connecting flight with Delta Air Lines departs from BTR Airport on Wed, Mar 26, arriving at Ontario International Airport.One-way Prices start from US$201 including taxes and charges.

      • BTR06:00
        7h 32m
        1 stop
        ONT11:32
        Wed, Apr 9|Baton Rouge - Ontario|Delta Air Lines
        US$201
        US$201

        Choose Delta Air Lines flights from Baton Rouge to Ontario.The one-way connecting flight with Delta Air Lines departs from BTR Airport on Wed, Apr 9, arriving at Ontario International Airport.One-way Prices start from US$201 including taxes and charges.

      • BTR01:00 pm
        3h 5m
        Nonstop
        ONT02:00 pm
        Fri, Feb 28|Baton Rouge - Ontario|Delta Air Lines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Baton Rouge to Los Angeles Flight time & Schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA6107

    United Airlines

    05:10

    BTR

    1.4h

    06:32

    IAH

    SMTWTFS
    Search

  2. F93131

    Frontier Airlines

    12:07

    IAH

    3.6h

    13:43

    ONT

    S-T-T--

  3. UA6107

    United Airlines

    05:10

    BTR

    1.4h

    06:32

    IAH

    SMTWTFS
    Search

  4. UA2433

    United Airlines

    07:20

    IAH

    2.6h

    08:55

    DEN

    SMTWTFS

  5. UA430

    United Airlines

    11:15

    DEN

    2.3h

    12:31

    ONT

    SMTWTFS

  6. AA3343

    American Airlines

    05:30

    BTR

    1.7h

    07:13

    DFW

    SMTWTFS
    Search

  7. AA1820

    American Airlines

    08:38

    DFW

    3.4h

    10:01

    ONT

    SMTWTFS

  8. DL966

    Delta Air Lines

    06:05

    BTR

    1.7h

    08:45

    ATL

    SMTWTFS
    Search

  9. DL665

    Delta Air Lines

    09:40

    ATL

    4.7h

    11:24

    ONT

    SMTWTFS

  10. AA5430

    American Airlines

    15:31

    BTR

    1.6h

    17:05

    DFW

    SMTWTFS
    Search

  11. AA3006

    American Airlines

    17:19

    DFW

    3.3h

    18:35

    ONT

    SMTWTFS

  12. UA4837

    United Airlines

    16:02

    BTR

    1.4h

    17:25

    IAH

    SMTWTFS
    Search

  13. UA1563

    United Airlines

    19:50

    IAH

    3.3h

    21:10

    ONT

    SMTWTFS

  14. AA4911

    American Airlines

    16:58

    BTR

    1.7h

    18:39

    DFW

    SMTWT-S
    Search

  15. AA3181

    American Airlines

    21:00

    DFW

    3.3h

    22:16

    ONT

    SMTWTFS
Find more flights and airlines

When is the cheapest time to book flights from Baton Rouge to Ontario?

These price trend charts carefully monitor and predict how flight prices from Baton Rouge to Ontario will change. Keep a close eye on them to understand when the best time to buy your tickets is.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Baton Rouge (BTR) to Ontario (ONT) the cheapest?

    Airlines adjust prices for flights from Baton Rouge to Ontario based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Baton Rouge (BTR) to Ontario (ONT) cost?

    According to Trip.com's data, the lowest price is around $408.

How to find a cheap flight from Baton Rouge to Ontario

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.
1
Being flexible with your dates to get the cheapest Baton Rouge to Ontario ticket.
Tap "Date" on flight search bar to scan through the calender for Baton Rouge to Ontario airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Tue, Apr 8 at US$194 for one-way flights.
2
Compare cheap Baton Rouge to Ontario flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Baton Rouge to Ontario. The cheapest airline operating is Delta Air Lines.
3
Set up a Price Alert
By setting up a Price Alert for your Baton Rouge to Ontario route, you can easily track the price of your airline tickets from Baton Rouge to Ontario without manually checking every day.
4
Don't miss cheap Baton Rouge to Ontario flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com free app and search for cheap flight tickets from Baton Rouge to Ontario to get exclusive deals for you.

Baton Rouge to Ontario Flight Information

Cheapest nonstop flight price$193
Off-season for travelDecember
Peak season for travelOctober
Flight distance10,117.66 km
Popular airlineAmerican Airlines

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