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Cheap flights from Buffalo to Ontario from C$ 254

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — YYZ
11 Jul — 18 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 11 June 2026.

Tue 18/88:57 p.m.
BUF
-
YYZ
1 stop23h 08m
Multiple Airlines
Mon 24/87:45 a.m.
YYZ
-
BUF
1 stop11h 22m
Multiple Airlines
Deal found 9/6C$ 676
Mon 10/810:20 a.m.
BUF
-
YUL
1 stop8h 34m
Delta
Wed 12/82:29 p.m.
YUL
-
BUF
1 stop9h 00m
Delta
Deal found 9/6C$ 701
Sat 4/76:10 a.m.
BUF
-
YUL
1 stop7h 40m
Delta
Fri 10/72:29 p.m.
YUL
-
BUF
1 stop9h 09m
Delta
Deal found 9/6C$ 702
Wed 8/77:57 p.m.
BUF
-
YYZ
1 stop18h 33m
Multiple Airlines
Wed 15/79:30 a.m.
YYZ
-
BUF
2 stops24h 59m
Multiple Airlines
Deal found 10/6C$ 726
Wed 19/86:01 a.m.
BUF
-
YUL
1 stop12h 53m
Delta
Sat 22/812:47 p.m.
YUL
-
BUF
2 stops11h 53m
Delta
Deal found 7/6C$ 733
Sat 8/86:00 a.m.
BUF
-
YUL
1 stop6h 27m
American Airlines
Wed 12/810:31 a.m.
YUL
-
BUF
1 stop11h 00m
American Airlines
Deal found 9/6C$ 736
Mon 17/86:10 p.m.
BUF
-
YUL
1 stop14h 29m
Delta
Sat 22/812:47 p.m.
YUL
-
BUF
2 stops11h 53m
Delta
Deal found 7/6C$ 746
Tue 25/86:01 a.m.
BUF
-
YUL
1 stop7h 38m
Delta
Wed 26/82:29 p.m.
YUL
-
BUF
1 stop9h 00m
Delta
Deal found 7/6C$ 748
Wed 26/86:00 a.m.
BUF
-
YUL
1 stop3h 46m
American Airlines
Wed 26/81:07 p.m.
YUL
-
BUF
1 stop3h 47m
American Airlines
Deal found 7/6C$ 750
Thu 9/79:29 p.m.
BUF
-
YYZ
2 stops19h 40m
Multiple Airlines
Thu 16/77:45 a.m.
YYZ
-
BUF
1 stop8h 47m
Multiple Airlines
Deal found 11/6C$ 751
Tue 20/102:30 p.m.
BUF
-
YUL
1 stop4h 20m
Delta
Thu 22/106:00 a.m.
YUL
-
BUF
2 stops12h 54m
Delta
Deal found 10/6C$ 755
Sun 23/86:01 a.m.
BUF
-
YUL
1 stop12h 53m
Delta
Wed 26/82:29 p.m.
YUL
-
BUF
1 stop9h 00m
Delta
Deal found 7/6C$ 758

Find flight deals from Buffalo to Ontario

Keep the following information in mind while searching for Buffalo to Ontario flight deals. Data was last updated 11 June 2026.

Round-trip from

C$ 676

One-way from

C$ 254
18/8-24/8
  • 18/8-24/8
  • 2 total stops
  • 34h 30m total
  • Buffalo to Ontario
Search Deals
17/8
  • 17/8
  • 2 total stops
  • 23h 17m total
  • Buffalo to Ontario
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 11 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

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Tue 18/8

8:57 p.m.-8:05 p.m.

1 stop23h 08m

Toronto Pearson Intl

Mon 24/8

7:45 a.m.-7:07 p.m.

1 stop11h 22m

C$ 676

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 10/8

10:20 a.m.-6:54 p.m.

1 stop8h 34m

Montreal Pierre Elliott Trudeau Intl

Wed 12/8

2:29 p.m.-11:29 p.m.

1 stop9h 00m

C$ 701

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Sat 4/7

6:10 a.m.-1:50 p.m.

1 stop7h 40m

Montreal Pierre Elliott Trudeau Intl

Fri 10/7

2:29 p.m.-11:38 p.m.

1 stop9h 09m

C$ 702

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 10/8

5:45 p.m.-9:46 a.m.

1 stop16h 01m

Montreal Pierre Elliott Trudeau Intl

Wed 12/8

10:31 a.m.-9:31 p.m.

1 stop11h 00m

C$ 736

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Tue 25/8

6:01 a.m.-1:39 p.m.

1 stop7h 38m

Montreal Pierre Elliott Trudeau Intl

Wed 26/8

2:29 p.m.-11:29 p.m.

1 stop9h 00m

C$ 748

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 17/8

6:10 p.m.-8:39 a.m.

1 stop14h 29m

Montreal Pierre Elliott Trudeau Intl

Thu 20/8

7:44 p.m.-9:13 a.m.

1 stop13h 29m

C$ 771

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Wed 16/9

10:00 a.m.-6:53 p.m.

1 stop8h 53m

Montreal Pierre Elliott Trudeau Intl

Sun 20/9

9:30 a.m.-5:32 p.m.

1 stop8h 02m

C$ 774

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 17/8

6:10 p.m.-8:39 a.m.

1 stop14h 29m

Montreal Pierre Elliott Trudeau Intl

Wed 19/8

9:30 a.m.-1:47 p.m.

1 stop4h 17m

C$ 780

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Tue 7/7

1:54 p.m.-9:26 p.m.

1 stop7h 32m

Montreal Pierre Elliott Trudeau Intl

Tue 14/7

4:30 p.m.-10:31 p.m.

1 stop6h 01m

C$ 782

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Wed 1/7

6:00 a.m.-4:10 p.m.

1 stop10h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 8/7

3:25 p.m.-10:31 p.m.

1 stop7h 06m

C$ 782

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 60 resultsSorted by cheapest first
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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.

Cheapflights Insights

Everything you need to know about your flight from Buffalo to Ontario
No data available for this route at this time. Please check back soon.

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.

  • What airport do you fly from for flights from Buffalo to Ontario?

    For a flight from Buffalo to Ontario, you will be flying from Buffalo. Buffalo (BUF) is just 13.4 km from the centre of the city.

  • How long is the flight from Buffalo to Region of Ontario?

    Airlines like Delta, American Airlines, and United Airlines fly from Buffalo to Region of Ontario in about 6h 27m. The time it takes to get you to your destination can typically vary by up to 3h 19m. Buffalo and Region of Ontario are separated by a distance of 486 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Buffalo to Region of Ontario?

    Most travellers choose Buffalo - Toronto Pearson Intl, Buffalo - Montreal Pierre Elliott Trudeau Intl or Buffalo - Toronto Island when deciding on the best route from Buffalo to Region of Ontario.

  • 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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Alternative routes for Buffalo to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Newark to Charlottetown flights
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Buffalo to Pierre Elliott Trudeau Intl flights

Fly with Cheapflights

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

Deals for Buffalo to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to Ontario from Buffalo by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to Ontario from Buffalo shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Buffalo to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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