$134+ Cheap flights from Buffalo to Ontario (BUF - 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ONT
Oct 24 — Oct 311
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo 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 Buffalo to Ontario
Cheapest
Best
Last-minute
One-way
Cheapest flights from Buffalo to OntarioExplore the most affordable flight options available from Buffalo to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
Explore the most affordable flight options available from Buffalo to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
This Mytrip deal was found by Cheapflights users on 9/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:53 pm -
2 stops13h 57m
Tue 10/2711:52 am -
2 stops22h 23m
Deal found 9/20![Frontier logo]()
$337
This Mytrip deal was found by Cheapflights users on 9/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:44 pm -
2 stops23h 45m
Tue 10/276:25 am -
2 stops27h 50m
Deal found 9/22![Frontier logo]()
$351
This Mytrip deal was found by Cheapflights users on 9/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:51 pm -
2 stops31h 59m
Tue 10/2711:52 am -
2 stops22h 23m
Deal found 9/20![Frontier logo]()
$363
This American Airlines deal was found by Cheapflights users on 9/23. 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.
Sat 11/147:14 am -
2 stops13h 56m
Sat 12/510:30 pm -
1 stop9h 10m
Deal found 9/23![American Airlines logo]()
$368
This Frontier deal was found by Cheapflights users on 9/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:44 pm -
2 stops13h 06m
Tue 10/275:07 pm -
2 stops17h 08m
Deal found 9/19![Frontier logo]()
$369
This American Airlines deal was found by Cheapflights users on 9/22. 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 11/177:14 am -
2 stops13h 56m
Sat 12/510:30 pm -
1 stop9h 10m
Deal found 9/22![American Airlines logo]()
$370
This Delta deal was found by Cheapflights users on 9/23. 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 11/146:00 am -
1 stop8h 03m
Sat 12/512:20 pm -
1 stop8h 44m
Deal found 9/23![Delta logo]()
$375
This American Airlines deal was found by Cheapflights users on 9/24. 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.
Wed 11/117:14 am -
1 stop7h 38m
Thu 12/310:30 pm -
1 stop9h 10m
Deal found 9/24![American Airlines logo]()
$376
This American Airlines deal was found by Cheapflights users on 9/19. 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.
Wed 11/187:14 am -
1 stop9h 18m
Wed 12/212:42 pm -
1 stop7h 11m
Deal found 9/19![American Airlines logo]()
$377
This American Airlines deal was found by Cheapflights users on 9/24. 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 11/107:14 am -
1 stop7h 38m
Tue 12/17:45 pm -
2 stops12h 03m
Deal found 9/24![American Airlines logo]()
$381
Best flights from Buffalo to OntarioDiscover carefully curated flight deals from Buffalo to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
Discover carefully curated flight deals from Buffalo to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
This Southwest deal was found by Cheapflights users on 9/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:00 am -
2 stops11h 10m
Sat 12/59:30 am -
2 stops9h 55m
Deal found 9/23![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 9/20. 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.
Wed 12/166:00 am -
1 stop8h 07m
Fri 12/2511:10 am -
1 stop9h 45m
Deal found 9/20![Delta logo]()
$444
This United Airlines deal was found by Cheapflights users on 9/23. 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 11/106:30 am -
2 stops14h 31m
Wed 11/111:29 pm -
1 stop6h 04m
Deal found 9/23![United Airlines logo]()
$512
This Southwest deal was found by Cheapflights users on 9/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/172:00 pm -
2 stops9h 40m
Sat 12/510:30 am -
2 stops8h 55m
Deal found 9/23![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 9/20. 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.
Tue 10/203:59 pm -
1 stop7h 26m
Sat 10/3112:16 pm -
1 stop8h 43m
Deal found 9/20![Delta logo]()
$468
This Southwest deal was found by Cheapflights users on 9/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:50 pm -
2 stops10h 00m
Mon 10/269:30 pm -
2 stops9h 55m
Deal found 9/21![Southwest logo]()
$442
This United Airlines deal was found by Cheapflights users on 9/20. 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 10/2410:46 am -
2 stops13h 12m
Sun 10/251:32 pm -
1 stop6h 01m
Deal found 9/20![United Airlines logo]()
$567
This Delta deal was found by Cheapflights users on 9/20. 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.
Wed 10/2110:00 am -
2 stops13h 25m
Fri 10/306:00 pm -
2 stops14h 35m
Deal found 9/20![Delta logo]()
$537
This United Airlines deal was found by Cheapflights users on 9/19. 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 11/36:30 am -
2 stops14h 31m
Sun 1/311:00 pm -
1 stop6h 54m
Deal found 9/19![United Airlines logo]()
$567
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/175:45 pm -
1 stop8h 04m
Thu 10/221:24 pm -
1 stop6h 19m
Deal found 9/23![United Airlines logo]()
$613
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/258:50 am -
1 stop6h 40m
Wed 10/281:29 pm -
1 stop6h 04m
Deal found 9/22![United Airlines logo]()
$632
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/135:45 pm -
1 stop8h 04m
Fri 10/161:24 pm -
1 stop6h 19m
Deal found 9/23![United Airlines logo]()
$648
Last-minute flights from Buffalo to OntarioDiscover last-minute flight deals from Buffalo to Ontario. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Ontario. Data last updated September 24, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/22. 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.
Sat 10/174:48 pm -
1 stop7h 23m
Sat 10/2412:43 pm -
1 stop7h 11m
Deal found 9/22![American Airlines logo]()
$393
This American Airlines deal was found by Cheapflights users on 9/23. 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.
Mon 10/193:56 pm -
1 stop10h 03m
Sat 10/2410:25 am -
2 stops9h 25m
Deal found 9/23![American Airlines logo]()
$423
This Mytrip deal was found by Cheapflights users on 9/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:51 pm -
2 stops31h 59m
Tue 10/2711:52 am -
2 stops22h 23m
Deal found 9/20![Frontier logo]()
$363
This Frontier deal was found by Cheapflights users on 9/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:44 pm -
2 stops13h 06m
Tue 10/275:07 pm -
2 stops17h 08m
Deal found 9/19![Frontier logo]()
$369
This Mytrip deal was found by Cheapflights users on 9/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:53 pm -
2 stops13h 57m
Tue 10/2711:52 am -
2 stops22h 23m
Deal found 9/20![Frontier logo]()
$337
This American Airlines deal was found by Cheapflights users on 9/21. 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.
Thu 10/223:56 pm -
1 stop10h 03m
Mon 10/2611:10 pm -
1 stop9h 55m
Deal found 9/21![American Airlines logo]()
$406
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Thu 10/223:56 pm -
1 stop10h 03m
Sat 10/3110:25 am -
1 stop9h 29m
Deal found 9/20![American Airlines logo]()
$410
This American Airlines deal was found by Cheapflights users on 9/20. 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.
Thu 10/223:56 pm -
1 stop10h 03m
Tue 10/2710:25 am -
2 stops10h 06m
Deal found 9/20![American Airlines logo]()
$415
This Mytrip deal was found by Cheapflights users on 9/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:44 pm -
2 stops23h 45m
Tue 10/276:25 am -
2 stops27h 50m
Deal found 9/22![Frontier logo]()
$351
This Delta deal was found by Cheapflights users on 9/20. 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 10/233:53 pm -
2 stops11h 02m
Wed 10/2812:16 pm -
1 stop8h 43m
Deal found 9/20![Delta logo]()
$398
One-way flights from Buffalo to OntarioSearch for one-way flight options from Buffalo to Ontario. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
Search for one-way flight options from Buffalo to Ontario. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
This Mytrip deal was found by Cheapflights users on 9/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/42:00 pm -
2 stops12h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/241:44 pm -
2 stops13h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:44 pm -
2 stops23h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Frontier logo]()
$186
This Delta deal was found by Cheapflights users on 9/23. 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 10/316:00 am -
1 stop8h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Delta logo]()
$189
This Frontier deal was found by Cheapflights users on 9/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:00 pm -
2 stops12h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$192
This Mytrip deal was found by Cheapflights users on 9/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:51 pm -
2 stops31h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$198
This Mytrip deal was found by Cheapflights users on 9/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:48 pm -
2 stops22h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Frontier logo]()
$199
This Mytrip deal was found by Cheapflights users on 9/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/21:48 pm -
2 stops23h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$204
This American Airlines deal was found by Cheapflights users on 9/22. 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 10/233:56 pm -
1 stop10h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![American Airlines logo]()
$205
Find flight deals from Buffalo to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) 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 September 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $337 (Mytrip) |
One-way from | $134 (Mytrip) |
Popular in | October |
Cheapest in | January |
Average price | $482 |
Cheapflights Fare Finder
Customize your flight search to find flights from Buffalo 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 September 24, 2026.
Use the filters below to find and compare flights from Buffalo to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloOntario
BUF Buffalo - ONT Ontario
BUFONT
Buffalo
Sat 10/31
6:00 am-11:06 am
1 stop8h 06m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$189
Quickest round-trip
BuffaloOntario
BUF Buffalo - ONT Ontario
BUFONT
Buffalo
Fri 12/4
8:17 am-12:34 pm
1 stop7h 17m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$305
BuffaloOntario
BUF Buffalo - ONT Ontario
BUFONT
Buffalo
Tue 10/6
6:00 am-11:06 am
1 stop8h 06m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$314
BuffaloOntario
BUF Buffalo - ONT Ontario
BUFONT
Buffalo
Fri 11/20
1:54 pm-6:20 am
2 stops19h 26m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$335
BuffaloOntario
BUF Buffalo - ONT Ontario
BUFONT
Buffalo
Wed 10/7
3:59 pm-8:25 pm
1 stop7h 26m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$350
BuffaloOntario
BUF Buffalo - ONT Ontario
BUFONT
Buffalo
Fri 10/23
5:45 pm-10:49 pm
1 stop8h 04m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$360
BuffaloOntario
BUF Buffalo - ONT Ontario
BUFONT
Buffalo
Wed 10/7
5:45 pm-10:49 pm
1 stop8h 04m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$379
BuffaloOntario
BUF Buffalo - ONT Ontario
BUFONT
Buffalo
Tue 10/6
7:00 am-5:41 pm
2 stops13h 41m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$384
BuffaloOntario
BUF Buffalo - ONT Ontario
BUFONT
Buffalo
Sat 11/14
6:00 am-2:10 pm
2 stops11h 10m
Ontario
Sat 12/5
9:30 am-10:25 pm
2 stops9h 55m
$387
BuffaloOntario
BUF Buffalo - ONT Ontario
BUFONT
Buffalo
Tue 11/17
2:00 pm-8:40 pm
2 stops9h 40m
Ontario
Sat 12/5
10:30 am-10:25 pm
2 stops8h 55m
$387
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Buffalo 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 Buffalo to Ontario in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Buffalo-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-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 Buffalo-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 Buffalo to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Buffalo with our price prediction graph.
BUF-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 September 24, 2026.
Get a feel of what it's like to fly with United Airlines from Buffalo to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.7
Entertainment
7.1
Overall
7.4
Crew
8.1
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentJulia,Sep 2025
BUF - DEN
Food
6.7
Entertainment
7.1
Overall
7.4
Crew
8.1
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentJulia,Sep 2025
BUF - DEN
Related info for your journey
Find useful and relevant information for your journey from Buffalo 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 Buffalo 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.
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Find flights from Buffalo 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 September 24, 2026.
Buffalo and Ontario flights
Browse other Buffalo and Ontario flight options. Last updated on September 24, 2026.
Other flights from Buffalo
Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on September 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Buffalo to Ontario
Discover the top airline that operate flights from Buffalo 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 September 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$374 | Average$614 | FlexibilityNo cancel fee | On-time69% |