$285 Cheap Flights from Ottawa (YOW) to Buffalo (BUF)

View $285 flight on Fri, Nov 28, 2025Opens in a new window

Popular airlines from Ottawa International Airport (YOW) to Buffalo Niagara Intl. Airport (BUF)

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Cheap Flights from Ottawa to Buffalo (YOW-BUF)

Prices were available within the past 7 days and start at $285 for one-way flights and $538 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Dec 3 - Tue, Dec 16
YOW
Ottawa
BUF
Buffalo
$538 Roundtrip, found 5 days ago
$538
Roundtrip
found 5 days ago
Select United flight, departing Wed, Dec 3 from Ottawa to Buffalo, returning Tue, Dec 16, priced at $538 found 5 days ago
United
Wed, Dec 31 - Wed, Jan 14
YOW
Ottawa
BUF
Buffalo
$549 Roundtrip, found 5 days ago
$549
Roundtrip
found 5 days ago
Select United flight, departing Wed, Dec 31 from Ottawa to Buffalo, returning Wed, Jan 14, priced at $549 found 5 days ago
Porter Airlines
Tue, Dec 9 - Wed, Dec 24
YOW
Ottawa
BUF
Buffalo
$552 Roundtrip, found 5 days ago
$552
Roundtrip
found 5 days ago
Select Porter Airlines flight, departing Tue, Dec 9 from Ottawa to Buffalo, returning Wed, Dec 24, priced at $552 found 5 days ago
Porter Airlines
Fri, Nov 28 - Tue, Dec 9
YOW
Ottawa
BUF
Buffalo
$552 Roundtrip, found 5 days ago
$552
Roundtrip
found 5 days ago
Select Porter Airlines flight, departing Fri, Nov 28 from Ottawa to Buffalo, returning Tue, Dec 9, priced at $552 found 5 days ago
United
Wed, Dec 31 - Sat, Jan 17
YOW
Ottawa
BUF
Buffalo
$554 Roundtrip, found 5 days ago
$554
Roundtrip
found 5 days ago
Select United flight, departing Wed, Dec 31 from Ottawa to Buffalo, returning Sat, Jan 17, priced at $554 found 5 days ago
Porter Airlines
Tue, Dec 9 - Thu, Dec 25
YOW
Ottawa
BUF
Buffalo
$556 Roundtrip, found 5 days ago
$556
Roundtrip
found 5 days ago
Select Porter Airlines flight, departing Tue, Dec 9 from Ottawa to Buffalo, returning Thu, Dec 25, priced at $556 found 5 days ago
Porter Airlines
Fri, Nov 28 - Thu, Dec 4
YOW
Ottawa
BUF
Buffalo
$559 Roundtrip, found 1 day ago
$559
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Fri, Nov 28 from Ottawa to Buffalo, returning Thu, Dec 4, priced at $559 found 1 day ago
Porter Airlines
Sat, Jan 10 - Sat, Jan 31
YOW
Ottawa
BUF
Buffalo
$559 Roundtrip, found 3 days ago
$559
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Sat, Jan 10 from Ottawa to Buffalo, returning Sat, Jan 31, priced at $559 found 3 days ago
Porter Airlines
Mon, Dec 8 - Wed, Dec 24
YOW
Ottawa
BUF
Buffalo
$561 Roundtrip, found 5 days ago
$561
Roundtrip
found 5 days ago
Select Porter Airlines flight, departing Mon, Dec 8 from Ottawa to Buffalo, returning Wed, Dec 24, priced at $561 found 5 days ago
Air Canada
Thu, Nov 27 - Thu, Dec 11
YOW
Ottawa
BUF
Buffalo
$595 Roundtrip, found 5 days ago
$595
Roundtrip
found 5 days ago
Select Air Canada flight, departing Thu, Nov 27 from Ottawa to Buffalo, returning Thu, Dec 11, priced at $595 found 5 days ago

Find the cheapest month to fly from Ottawa (YOW) to Buffalo (BUF)

October is typically the cheapest month to fly

From $463 - $844 per traveler.

Alternative airports near Buffalo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Buffalo Niagara Intl. BUF. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $604
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $604

Frequently asked questions

How much does a flight from Macdonald-Cartier Intl. Airport (YOW) to Buffalo Niagara Intl. Airport (BUF) cost?
Grab a cheap one-way flight from $285 or cheap return flight from $538 from Macdonald-Cartier Intl. Airport (YOW) to Buffalo Niagara Intl. Airport (BUF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Macdonald-Cartier Intl. Airport (YOW) to Buffalo Niagara Intl. Airport (BUF)?
December is the cheapest month to fly from YOW to BUF. Planning your trip for the off-season is often the key to scoring lower fares.
What is the cheapest airline that flies from Macdonald-Cartier Intl. Airport (YOW) to Buffalo Niagara Intl. Airport (BUF)?
To find the cheapest airline flying from YOW to BUF, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Macdonald-Cartier Intl. Airport (YOW) to Buffalo Niagara Intl. Airport (BUF)?
Direct flights from Macdonald-Cartier Intl. Airport (YOW) to Buffalo Niagara Intl. Airport (BUF) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from YOW to BUF?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Macdonald-Cartier Intl. Airport (YOW) to Buffalo Niagara Intl. Airport (BUF)?
To avoid potential delays on the Macdonald-Cartier Intl. Airport (YOW) to Buffalo Niagara Intl. Airport (BUF) route, aim to fly before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Buffalo from Macdonald-Cartier Intl. Airport (YOW)?
Billy Bishop Toronto City Airport (YTZ) is the only airport in Buffalo with direct flights from Macdonald-Cartier Intl. Airport (YOW). Compare the available options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Macdonald-Cartier Intl. Airport (YOW) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Holding off until just before your departure to book your flight from YOW to BUF often results in higher prices. Although you may find some last-minute offers, they aren't always guaranteed. Keep your travel plans flexible to maximize your chances of snagging a bargain.
Is it cheaper to book a YOW to BUF flight and hotel package?
Compared with arranging hotels and flights separately, booking a YOW to BUF flight and hotel package with Expedia could result in significant savings. Better still, managing everything in one place will take the hassle out of travel planning. Just pick your flights and choose from our wide range of stays, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Macdonald-Cartier Intl. Airport (YOW) to Buffalo Niagara Intl. Airport (BUF)?
Usually, it's possible to cancel or reschedule your YOW to BUF flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Macdonald-Cartier Intl.
Destination airport
Buffalo Niagara Intl.
Roundtrip price
$537
Distance
224 mi

Book with confidence

Ottawa to Buffalo Flights

The cheapest times to fly from Ottawa to Buffalo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ottawa to Buffalo are during the month of December. You can find some of the cheapest flights from Ottawa to Buffalo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ottawa to Buffalo

Sunday is one of the best days to book for cheap flights from Ottawa to Buffalo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ottawa to Buffalo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ottawa to Buffalo in 2025. You can also book with separate airlines for your outbound and return journeys, from $285 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ottawa to Buffalo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ottawa to Buffalo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Ottawa to Buffalo Flights

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*Available to One Key members.