Cheap Flights from Ottawa (YOWA) to Buffalo Niagara (BUF)

Compare Ottawa to Buffalo Niagara flight deals

Find the cheapest month or even day of the year to fly to Buffalo Niagara

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Flight deals from Ottawa to Buffalo Niagara

Looking for a cheap last-minute deal or the best return flight from Ottawa to Buffalo Niagara Airport? If you want to travel next month, return fares start from £304. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Ottawa to Buffalo Niagara

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ottawa to Buffalo Niagara flights are currently cheapest in May.

Ottawa to Buffalo Niagara: Alternative routes

Compare routes from Ottawa to Buffalo below. You may find an airport to fly into that's cheaper, faster, or easier than Buffalo Niagara.

Ottawa to Buffalo: Flight information

The things to know before you go.
Cheapest flight found£148
Cheapest month to flyMay

Finding cheap flights from Ottawa to Buffalo Niagara: Frequently asked questions

The best price we found for a return flight from Ottawa to Buffalo Niagara is £304. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Ottawa to Buffalo Niagara. But we found flights with one stop from £304.
As of April 2026, there are no flights flying from Ottawa to Buffalo Niagara.
The cheapest month to fly from Ottawa to Buffalo Niagara is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Ottawa to Buffalo Niagara Airport on Monday, 4 May 2026.
No airlines currently offer direct flights between Ottawa and Buffalo Niagara Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Buffalo Niagara but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Buffalo is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Buffalo Niagara is Porter Airlines .

Travelling from Ottawa to Buffalo Niagara International Airport (BUF): What you need to know

  • Buffalo's timezone is UTC-5, which is the same as Ottawa. Buffalo Niagara International Airport is located in Buffalo.

  • For stress-free travel, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to catch your flight from Ottawa to BUF.

  • Head to the airport even earlier during popular months like August. Aim for two hours before a domestic departure and four hours ahead of international flights. After checking in, you can use any extra time to relax or go over your itinerary.

Airports in Ottawa

Ottawa Macdonald-Cartier International Airport (YOW)

  • Located around 14 kms (9 miles) from central Ottawa, YOW can be reached in about 20 minutes by car, depending on traffic. The journey on public transport is roughly 35 minutes.

  • Catching an early flight from Ottawa to Buffalo Niagara International Airport? Avoid rushing to the terminal (and sneak in some extra snooze time) by staying at one of these hotels near Ottawa Macdonald-Cartier International Airport:

  • Of all flights leaving Ottawa Macdonald-Cartier International Airport, 58% touch down on time at their destination.

  • The address for YOW is 50 Airport Road.

About Buffalo Niagara International Airport (BUF)

  • Have a late flight from Ottawa to Buffalo Niagara International Airport? Don't let your travel day stretch into tomorrow. Stay at one of these hotels near BUF and shut your eyes sooner:

  • Follow your own route with a Buffalo Niagara International Airport rental car. Book your wheels from Dollar, Hertz or Budget and discover more of Buffalo and beyond.

  • Lock in the best rate by reserving your vehicle around two weeks before your Ottawa to Buffalo Niagara International Airport flight.

  • You'll find BUF at Genesee Street.

Getting from Buffalo Niagara International Airport (BUF) to central Buffalo

  • Buffalo Niagara International Airport is around 16 kms (10 miles) from central Buffalo. It takes around 20 minutes or so to get to the city by car.

  • If you're travelling on public transport, expect a journey of roughly 40 minutes.

How to find the cheapest flights from Ottawa to Buffalo Niagara International Airport (BUF)

  • At the moment, £148 is the best price we've found for a one-way ticket from Ottawa to Buffalo Niagara International Airport. The cheapest price for a return flight is £304. Remember fares can change due to availability at the time of booking.

  • Booking ahead of time is often the key to finding a cheap flight from Ottawa to BUF. Fares tend to rise as seats fill up, so the closer you get to departure, the more expensive your ticket may be.

  • If you're flexible with your trip dates, use the 'Whole month' search tool. It'll show you the cheapest price in every month when searching for your Ottawa to Buffalo Niagara International Airport ticket.

  • Be the first to know about deals for plane tickets from Ottawa to BUF by creating a Price Alert. We'll send you an email or notification on the app when a lower fare becomes available.

  • Filters make it easier to track down a bargain for your flight from Ottawa to Buffalo Niagara International Airport. Pick the airlines, flight times and number of stops that work for you. Then sort the results by 'Cheapest' to bring up the lowest fares right away.

The best time to fly from Ottawa to Buffalo Niagara International Airport (BUF)

  • Think about the kind of experience you want when picking your flight dates. September is the quietest month to go to Buffalo. May is when most people book flights from Ottawa to Buffalo Niagara International Airport (BUF), which may be perfect if you enjoy travelling when it's busier.

  • Book a Ottawa to BUF plane ticket departing in July if you're eager to visit the city during its warmest month. Expect temperatures in Buffalo to range from 15ºC to 28ºC.

  • Search for cheap tickets from Ottawa to Buffalo Niagara International Airport in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -10ºC and 2ºC.

More about Buffalo

  • Start your Buffalo trip right by choosing the perfect place to stay. As soon as you've booked your flight from Ottawa to Buffalo Niagara International Airport, browse our range of accommodation options including:

  • Your trip to Buffalo should come with a bit of sightseeing. Major attractions you won't want to miss include Frank Lloyd Wright's Darwin D. Martin House Complex, Buffalo AKG Art Museum and Forest Lawn.

Explore more of the United States

  • Cleveland is just one of the many places in the United States waiting to be discovered after you've seen Buffalo. Around 290 kms (180 miles) away to the southwest, popular attractions include Rock & Roll Hall of Fame, Cleveland Museum of Art and Cleveland Museum of Natural History.

  • Pittsburgh is another standout destination in the United States and is around 290 kms (180 miles) south of Buffalo. No journey is complete without experiencing Carnegie Museum of Art, The Andy Warhol Museum and Point State Park Fountain.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.