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Cheap flights from Buffalo to Ontario from C$ 229

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ONT
15 Jul — 22 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buffalo to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Buffalo to Ontario
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 15 June 2026.

Wed 2/93:52 p.m.
BUF
-
ONT
1 stop9h 43m
JetBlue
Fri 11/99:10 p.m.
ONT
-
BUF
1 stop8h 14m
JetBlue
Deal found 13/6C$ 445
Tue 22/912:10 p.m.
BUF
-
ONT
1 stop11h 03m
JetBlue
Tue 29/99:10 p.m.
ONT
-
BUF
1 stop8h 14m
JetBlue
Deal found 11/6C$ 522
Wed 4/1112:09 p.m.
BUF
-
ONT
1 stop9h 09m
Delta
Mon 9/1110:59 p.m.
ONT
-
BUF
1 stop9h 16m
Delta
Deal found 12/6C$ 540
Tue 11/83:52 p.m.
BUF
-
ONT
1 stop9h 43m
JetBlue
Sun 30/811:50 p.m.
ONT
-
BUF
1 stop11h 46m
JetBlue
Deal found 14/6C$ 550
Fri 23/103:50 p.m.
BUF
-
ONT
2 stops10h 58m
Delta
Sun 25/1010:59 p.m.
ONT
-
BUF
1 stop9h 16m
Delta
Deal found 11/6C$ 606
Sat 24/105:45 p.m.
BUF
-
ONT
1 stop8h 04m
United Airlines
Sat 31/106:53 p.m.
ONT
-
BUF
2 stops12h 56m
United Airlines
Deal found 11/6C$ 615
Sat 31/109:00 a.m.
BUF
-
ONT
2 stops10h 12m
Delta
Sun 8/1110:59 p.m.
ONT
-
BUF
1 stop9h 16m
Delta
Deal found 15/6C$ 622
Wed 15/76:00 a.m.
BUF
-
ONT
2 stops9h 40m
Southwest
Sat 25/79:50 a.m.
ONT
-
BUF
2 stops10h 25m
Southwest
Deal found 14/6C$ 639
Sat 8/87:50 a.m.
BUF
-
ONT
2 stops10h 25m
Southwest
Sat 15/811:55 p.m.
ONT
-
BUF
1 stop7h 55m
Southwest
Deal found 14/6C$ 646

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 15 June 2026.

Round-trip from

C$ 445

One-way from

C$ 229

Popular in

April

Cheapest in

October

Average price

C$ 485
JetBlue
  • JetBlue
  • 2/9-11/9
  • 2 total stops
  • 17h 57m total
  • Buffalo to Ontario
Search Deals
JetBlue
  • JetBlue
  • 22/8
  • 1 total stop
  • 9h 13m total
  • Buffalo to Ontario
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 65 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 629,999 searches. Data last updated 15 June 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

Price

Cheapest round-trip

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Tue 22/9

12:10 p.m.-8:13 p.m.

1 stop11h 03m

Ontario

Tue 29/9

9:10 p.m.-8:24 a.m.

1 stop8h 14m

C$ 522

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Tue 11/8

3:52 p.m.-10:35 p.m.

1 stop9h 43m

Ontario

Sun 30/8

11:50 p.m.-2:36 p.m.

1 stop11h 46m

C$ 550

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Sat 24/10

5:45 p.m.-10:49 p.m.

1 stop8h 04m

Ontario

Sat 31/10

6:53 p.m.-10:49 a.m.

2 stops12h 56m

C$ 615

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 23/10

4:30 p.m.-10:14 p.m.

1 stop8h 44m

Ontario

Sun 25/10

10:59 p.m.-11:15 a.m.

1 stop9h 16m

C$ 667

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 2/10

5:45 p.m.-10:49 p.m.

1 stop8h 04m

Ontario

Sat 10/10

7:00 a.m.-4:43 p.m.

1 stop6h 43m

C$ 752

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 2/9

10:30 a.m.-8:01 p.m.

2 stops12h 31m

Ontario

Fri 11/9

7:13 p.m.-9:08 a.m.

2 stops10h 55m

C$ 759

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Sat 14/11

7:00 a.m.-5:47 p.m.

2 stops13h 47m

Ontario

Sun 22/11

7:00 a.m.-4:47 p.m.

1 stop6h 47m

C$ 771

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Tue 18/8

5:58 p.m.-10:35 p.m.

1 stop7h 37m

Ontario

Wed 19/8

7:00 a.m.-9:07 p.m.

1 stop11h 07m

C$ 793

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Thu 2/7

10:57 a.m.-10:37 p.m.

2 stops14h 40m

Ontario

Sat 4/7

6:10 a.m.-4:41 p.m.

1 stop7h 31m

C$ 810
Quickest round-trip

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Sat 4/7

9:00 a.m.-12:47 p.m.

1 stop6h 47m

Ontario

Fri 10/7

1:18 p.m.-10:58 p.m.

1 stop6h 40m

C$ 880

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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.
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.

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.

  • How long is the flight from Buffalo to Ontario?

    JetBlue, United Airlines, and Delta can get you from Buffalo to Ontario in just under 8h 04m. Your travel time can differ by up to 2h 59m. The distance between Buffalo and Ontario is about 3487 km. This flight may include one or multiple stops.

  • Can I find deals for flights from Buffalo to Ontario that include hotel bookings?

    Yes. In addition to deals on Buffalo to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Ontario.

  • Can I find deals for business class flights from Buffalo to Ontario?

    Yes. Cheapflights offers flight deals from Buffalo to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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How does Cheapflights help users find flights from Buffalo to Ontario?

Cheapflights helps you search for flights from Buffalo to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to Ontario?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Buffalo to Ontario for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Buffalo to Ontario with no change fees?

Yes! Cheapflights helps users easily find flights from Buffalo to Ontario with no change fees.

Can Cheapflights notify me if prices for flights from Buffalo to Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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