$206+ Cheap flights from Baton Rouge to Ontario (BTR - ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — ONT
Nov 7 — Nov 141
Round-trip
1 adult, Economy
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Find cheap flights from Baton Rouge to Ontario 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 Baton Rouge to Ontario
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Best
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One-way
Cheapest flights from Baton Rouge to OntarioExplore the most affordable flight options available from Baton Rouge to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 8, 2026.
Explore the most affordable flight options available from Baton Rouge to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 8, 2026.
This Delta deal was found by Cheapflights users on 10/6. 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.
Sat 11/76:03 am -
1 stop7h 03m
Sat 11/1412:18 pm -
1 stop6h 35m
Deal found 10/6![Delta logo]()
$378
This American Airlines deal was found by Cheapflights users on 10/4. 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.
Tue 10/275:50 am -
1 stop5h 45m
Sat 10/312:22 pm -
1 stop6h 34m
Deal found 10/4![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Tue 10/2712:05 pm -
2 stops10h 46m
Sat 10/316:00 am -
1 stop7h 38m
Deal found 10/4![United Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 10/5. 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.
Thu 12/103:59 pm -
1 stop7h 56m
Tue 12/1512:20 pm -
1 stop7h 48m
Deal found 10/5![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Tue 10/205:20 am -
2 stops12h 02m
Sat 10/246:00 am -
1 stop7h 32m
Deal found 10/5![United Airlines logo]()
$454
This American Airlines deal was found by Cheapflights users on 10/5. 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.
Tue 10/207:52 pm -
1 stop6h 00m
Sat 10/242:22 pm -
1 stop5h 19m
Deal found 10/5![American Airlines logo]()
$472
This United Airlines deal was found by Cheapflights users on 10/7. 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.
Sat 11/144:13 pm -
1 stop7h 27m
Tue 11/176:00 am -
1 stop5h 26m
Deal found 10/7![United Airlines logo]()
$499
Best flights from Baton Rouge to OntarioDiscover carefully curated flight deals from Baton Rouge to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 8, 2026.
Discover carefully curated flight deals from Baton Rouge to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 8, 2026.
This Delta deal was found by Cheapflights users on 10/5. 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.
Sat 11/76:03 am -
1 stop7h 03m
Sat 11/1412:18 pm -
1 stop6h 35m
Deal found 10/5![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Tue 10/2712:05 pm -
2 stops10h 46m
Sat 10/316:00 am -
1 stop7h 38m
Deal found 10/4![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Wed 1/66:06 pm -
1 stop6h 09m
Sat 1/96:00 am -
1 stop7h 20m
Deal found 10/6![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Sat 11/144:13 pm -
1 stop7h 27m
Tue 11/175:00 am -
2 stops12h 43m
Deal found 10/6![United Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Sat 10/244:07 pm -
1 stop7h 52m
Sat 10/316:00 am -
1 stop5h 26m
Deal found 10/8![United Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Fri 10/234:07 pm -
1 stop7h 52m
Tue 10/276:00 am -
1 stop7h 38m
Deal found 10/8![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 10/5. 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 1/147:15 am -
2 stops12h 20m
Mon 1/186:00 am -
1 stop7h 20m
Deal found 10/5![United Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Fri 10/305:00 am -
2 stops9h 30m
Sun 11/15:00 am -
2 stops12h 43m
Deal found 10/5![United Airlines logo]()
$589
Last-minute flights from Baton Rouge to OntarioDiscover last-minute flight deals from Baton Rouge to Ontario. Data last updated October 8, 2026 and is based on user searches.
Discover last-minute flight deals from Baton Rouge to Ontario. Data last updated October 8, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Tue 10/205:20 am -
2 stops12h 02m
Sat 10/246:00 am -
1 stop7h 32m
Deal found 10/5![United Airlines logo]()
$454
This American Airlines deal was found by Cheapflights users on 10/5. 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.
Tue 10/207:52 pm -
1 stop6h 00m
Sat 10/242:22 pm -
1 stop5h 19m
Deal found 10/5![American Airlines logo]()
$472
This American Airlines deal was found by Cheapflights users on 10/4. 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.
Tue 10/275:50 am -
1 stop5h 45m
Sat 10/312:22 pm -
1 stop6h 34m
Deal found 10/4![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Tue 10/2712:05 pm -
2 stops10h 46m
Sat 10/316:00 am -
1 stop7h 38m
Deal found 10/4![United Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 10/6. 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.
Sat 11/76:03 am -
1 stop7h 03m
Sat 11/1412:18 pm -
1 stop6h 35m
Deal found 10/6![Delta logo]()
$378
This United Airlines deal was found by Cheapflights users on 10/7. 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.
Sat 11/144:13 pm -
1 stop7h 27m
Tue 11/176:00 am -
1 stop5h 26m
Deal found 10/7![United Airlines logo]()
$499
One-way flights from Baton Rouge to OntarioSearch for one-way flight options from Baton Rouge to Ontario. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.
Search for one-way flight options from Baton Rouge to Ontario. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.
This Delta deal was found by Cheapflights users on 10/8. 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.
Thu 11/196:00 am -
1 stop7h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$206
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Sat 11/74:13 pm -
1 stop7h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![United Airlines logo]()
$266
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Wed 11/45:00 am -
2 stops12h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$271
This United Airlines deal was found by Cheapflights users on 10/5. 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 11/194:13 pm -
1 stop7h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![United Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 10/8. 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 10/294:13 pm -
1 stop7h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$295
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Fri 11/204:13 pm -
1 stop7h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![United Airlines logo]()
$313
This American Airlines deal was found by Cheapflights users on 10/7. 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.
Fri 11/207:32 pm -
1 stop6h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![American Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Sun 2/213:55 pm -
1 stop7h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![United Airlines logo]()
$345
This Delta deal was found by Cheapflights users on 10/4. 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.
Fri 10/233:49 pm -
1 stop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Delta logo]()
$364
Find flight deals from Baton Rouge to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Baton Rouge (BTR) to Ontario (ONT). 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 October 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $378 (Delta) |
One-way from | $206 (Delta) |
Popular in | February |
Cheapest in | September |
Average price | $634 |
Cheapflights Fare Finder
Customize your flight search to find flights from Baton Rouge to Ontario 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 7,457,451 searches. Data last updated October 8, 2026.
Use the filters below to find and compare flights from Baton Rouge to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Baton RougeOntario
BTR Baton Rouge Ryan - ONT Ontario
BTRONT
Baton Rouge Ryan
Thu 11/19
6:00 am-11:03 am
1 stop7h 03m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$206
Baton RougeOntario
BTR Baton Rouge Ryan - ONT Ontario
BTRONT
Baton Rouge Ryan
Sat 11/7
5:00 am-12:33 pm
2 stops9h 33m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$271
Baton RougeOntario
BTR Baton Rouge Ryan - ONT Ontario
BTRONT
Baton Rouge Ryan
Thu 11/19
4:13 pm-9:40 pm
1 stop7h 27m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$294
Quickest round-trip
Baton RougeOntario
BTR Baton Rouge Ryan - ONT Ontario
BTRONT
Baton Rouge Ryan
Mon 2/8
6:06 pm-10:15 pm
1 stop6h 09m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$295
Baton RougeOntario
BTR Baton Rouge Ryan - ONT Ontario
BTRONT
Baton Rouge Ryan
Fri 11/20
4:13 pm-9:40 pm
1 stop7h 27m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$313
Baton RougeOntario
BTR Baton Rouge Ryan - ONT Ontario
BTRONT
Baton Rouge Ryan
Fri 10/23
5:20 am-3:22 pm
2 stops12h 02m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$369
Baton RougeOntario
BTR Baton Rouge Ryan - ONT Ontario
BTRONT
Baton Rouge Ryan
Sat 11/7
6:03 am-11:06 am
1 stop7h 03m
Ontario
Sat 11/14
12:18 pm-8:53 pm
1 stop6h 35m
$379
Baton RougeOntario
BTR Baton Rouge Ryan - ONT Ontario
BTRONT
Baton Rouge Ryan
Fri 11/20
8:01 am-3:35 pm
2 stops9h 34m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$384
Baton RougeOntario
BTR Baton Rouge Ryan - ONT Ontario
BTRONT
Baton Rouge Ryan
Tue 10/27
12:05 pm-8:51 pm
2 stops10h 46m
Ontario
Sat 10/31
6:00 am-3:38 pm
1 stop7h 38m
$384
Baton RougeOntario
BTR Baton Rouge Ryan - ONT Ontario
BTRONT
Baton Rouge Ryan
Mon 12/28
3:40 pm-11:41 pm
1 stop10h 01m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$419
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Baton Rouge to Ontario
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 Baton Rouge to Ontario in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Baton Rouge-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baton Rouge-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baton Rouge-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Baton Rouge-Ontario 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 Baton Rouge-Ontario 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 Baton Rouge to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Baton Rouge with our price prediction graph.
BTR-ONT
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.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated October 8, 2026.
Read reviews from past customers who have flown American Airlines from Baton Rouge to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.4
Comfort
7.2
Crew
7.9
Entertainment
6.8
Boarding
7.4
Overall
7.0
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Food
6.4
Comfort
7.2
Crew
7.9
Entertainment
6.8
Boarding
7.4
Overall
7.0
Reviews
1 / 20
2.0
MediocreAnonymous,Mar 2026
MIA - SFO
Related info for your journey
Find useful and relevant information for your journey from Baton Rouge to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Baton Rouge to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Baton Rouge to Ontario by cabin class
Find flights from Baton Rouge to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 8, 2026.
Baton Rouge and Ontario flights
Browse other Baton Rouge and Ontario flight options. Last updated on October 8, 2026.
Other flights from Baton Rouge
Browse through other flights departing from Baton Rouge. Flights are based on user searches made on Cheapflights and were last updated on October 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Baton Rouge to Ontario
Discover the top airline that operate flights from Baton Rouge to Ontario. 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 7,457,451 searches. Data last updated October 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$358 | Average$484 | FlexibilityNo cancel fee | On-time71% |