$302 Cheap Flights from Ottawa (YOW) to Buffalo (BUF)

View $302 flight on Thu, Oct 30, 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 $302 for one-way flights and $557 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Sep 23 - Wed, Sep 24
YOW
Ottawa
BUF
Buffalo
$557 Roundtrip, found 1 day ago
$557
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 23 from Ottawa to Buffalo, returning Wed, Sep 24, priced at $557 found 1 day ago
United
Tue, Sep 23 - Wed, Sep 24
YOW
Ottawa
BUF
Buffalo
$564 Roundtrip, found 1 day ago
$564
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 23 from Ottawa to Buffalo, returning Wed, Sep 24, priced at $564 found 1 day ago
Air Canada
Tue, Sep 23 - Wed, Sep 24
YOW
Ottawa
BUF
Buffalo
$569 Roundtrip, found 1 day ago
$569
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Sep 23 from Ottawa to Buffalo, returning Wed, Sep 24, priced at $569 found 1 day ago
United
Tue, Sep 23 - Wed, Sep 24
YOW
Ottawa
BUF
Buffalo
$573 Roundtrip, found 1 day ago
$573
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 23 from Ottawa to Buffalo, returning Wed, Sep 24, priced at $573 found 1 day ago
Air Canada
Tue, Sep 23 - Wed, Sep 24
YOW
Ottawa
BUF
Buffalo
$574 Roundtrip, found 1 day ago
$574
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Sep 23 from Ottawa to Buffalo, returning Wed, Sep 24, priced at $574 found 1 day ago
United
Tue, Sep 23 - Wed, Sep 24
YOW
Ottawa
BUF
Buffalo
$594 Roundtrip, found 1 day ago
$594
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 23 from Ottawa to Buffalo, returning Wed, Sep 24, priced at $594 found 1 day ago
Air Canada
Tue, Sep 23 - Wed, Sep 24
YOW
Ottawa
BUF
Buffalo
$604 Roundtrip, found 1 day ago
$604
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Sep 23 from Ottawa to Buffalo, returning Wed, Sep 24, priced at $604 found 1 day ago
United
Tue, Sep 23 - Wed, Sep 24
YOW
Ottawa
BUF
Buffalo
$607 Roundtrip, found 1 day ago
$607
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 23 from Ottawa to Buffalo, returning Wed, Sep 24, priced at $607 found 1 day ago
United
Tue, Sep 23 - Wed, Sep 24
YOW
Ottawa
BUF
Buffalo
$609 Roundtrip, found 1 day ago
$609
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 23 from Ottawa to Buffalo, returning Wed, Sep 24, priced at $609 found 1 day ago
Porter Airlines
Mon, Sep 15 - Mon, Sep 22
YOW
Ottawa
BUF
Buffalo
$619 Roundtrip, found 5 days ago
$619
Roundtrip
found 5 days ago
Select Porter Airlines flight, departing Mon, Sep 15 from Ottawa to Buffalo, returning Mon, Sep 22, priced at $619 found 5 days ago

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

March is typically the cheapest month to fly

From $464 - $818 per traveler.

Graph displaying average flight prices per month

Flights from Ottawa (YOW) to Buffalo (BUF)
Origin airport
Macdonald-Cartier Intl.
Destination airport
Buffalo Niagara Intl.
Roundtrip price
$557
Distance
224 mi

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 September. 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 $302 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.

 

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 $302 or cheap return flight from $557 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)?
September 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.

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*Available to One Key members.