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CA $447 Cheap Flights from Ottawa (YOW) to Buffalo (BUF)

View CA $447 flight on Wed, Sep 16, 2026Opens 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 (YOW) to Buffalo (BUF)

Prices were available within the past 7 days and start at CA $447 for one-way flights and CA $811 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Porter Airlines
Wed, Sep 16 - Sat, Sep 19
YOW
Ottawa
BUF
Buffalo
CA $811 Roundtrip, found 2 days ago
CA $811
Roundtrip
found 2 days ago
Select Porter Airlines flight, departing Wed, Sep 16 from Ottawa to Buffalo, returning Sat, Sep 19, priced at CA $811 found 2 days ago
Porter Airlines
Wed, Sep 16 - Sat, Sep 19
YOW
Ottawa
BUF
Buffalo
CA $816 Roundtrip, found 2 days ago
CA $816
Roundtrip
found 2 days ago
Select Porter Airlines flight, departing Wed, Sep 16 from Ottawa to Buffalo, returning Sat, Sep 19, priced at CA $816 found 2 days ago
Porter Airlines
Mon, Nov 2 - Tue, Nov 3
YOW
Ottawa
BUF
Buffalo
CA $825 Roundtrip, found 2 days ago
CA $825
Roundtrip
found 2 days ago
Select Porter Airlines flight, departing Mon, Nov 2 from Ottawa to Buffalo, returning Tue, Nov 3, priced at CA $825 found 2 days ago
Porter Airlines
Wed, Sep 16 - Sat, Sep 19
YOW
Ottawa
BUF
Buffalo
CA $825 Roundtrip, found 2 days ago
CA $825
Roundtrip
found 2 days ago
Select Porter Airlines flight, departing Wed, Sep 16 from Ottawa to Buffalo, returning Sat, Sep 19, priced at CA $825 found 2 days ago
Porter Airlines
Wed, Sep 16 - Sat, Sep 19
YOW
Ottawa
BUF
Buffalo
CA $830 Roundtrip, found 2 days ago
CA $830
Roundtrip
found 2 days ago
Select Porter Airlines flight, departing Wed, Sep 16 from Ottawa to Buffalo, returning Sat, Sep 19, priced at CA $830 found 2 days ago
Porter Airlines
Wed, Sep 9 - Mon, Sep 21
YOW
Ottawa
BUF
Buffalo
CA $832 Roundtrip, found 22 hours ago
CA $832
Roundtrip
found 22 hours ago
Select Porter Airlines flight, departing Wed, Sep 9 from Ottawa to Buffalo, returning Mon, Sep 21, priced at CA $832 found 22 hours ago
Porter Airlines
Fri, Sep 11 - Sun, Sep 13
YOW
Ottawa
BUF
Buffalo
CA $839 Roundtrip, found 3 hours ago
CA $839
Roundtrip
found 3 hours ago
Select Porter Airlines flight, departing Fri, Sep 11 from Ottawa to Buffalo, returning Sun, Sep 13, priced at CA $839 found 3 hours ago
United
Wed, Aug 26 - Mon, Aug 31
YOW
Ottawa
BUF
Buffalo
CA $846 Roundtrip, found 2 days ago
CA $846
Roundtrip
found 2 days ago
Select United flight, departing Wed, Aug 26 from Ottawa to Buffalo, returning Mon, Aug 31, priced at CA $846 found 2 days ago
Air Canada
Sat, Nov 21 - Mon, Nov 23
YOW
Ottawa
BUF
Buffalo
CA $880 Roundtrip, found 1 day ago
CA $880
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sat, Nov 21 from Ottawa to Buffalo, returning Mon, Nov 23, priced at CA $880 found 1 day ago
American Airlines
Sat, Aug 29 - Sat, Sep 5
YOW
Ottawa
BUF
Buffalo
CA $940 Roundtrip, found 1 day ago
CA $940
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Aug 29 from Ottawa to Buffalo, returning Sat, Sep 5, priced at CA $940 found 1 day ago

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 centre is 16 minutes. Flights from CA $1,026
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city centre16 min
Flights from CA $1,026

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

January is typically the cheapest month to fly

From CA $672 - CA $960 per traveller.

Frequently asked questions

How much does a flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) cost?
You can find cheap one-way flights from CA $447 and cheap return flights from CA $811 YOW to BUF with Expedia. One-way flights typically cost between CA$720 and CA$1393, and return flights often range between CA$889 and CA$2333. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when YOW to BUF ticket fares go up or down.
What is the cheapest month to fly from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The cheapest months to fly from YOW to BUF are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Ottawa, ON (YOW) to Buffalo, NY (BUF)?
Enter YOW to BUF and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Ottawa, ON (YOW) to Buffalo, NY (BUF)?
To find a cheap flight from Ottawa, ON (YOW) to Buffalo, NY (BUF), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
There are approximately 22 connecting flights per day from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.). Some common connection points include Pearson Intl. (YYZ), Washington Dulles Intl. (IAD), and Pierre Elliott Trudeau Intl. (YUL).
What is the earliest flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The earliest flight from Ottawa Macdonald-Cartier International Airport (YOW) to Buffalo Niagara International Airport (BUF) typically departs around 5:00 AM. This flight is operated by Air Canada and Delta. This is a seasonal service, active only in November. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
You'll generally find the most flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) on a Thursday, with around 29 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, Air Canada, and Porter Airlines.
What are the most popular departure times for flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The most popular departure times for flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) are between 9am and 12pm. Many major carriers, including United, Air Canada and Porter Airlines, offer flights during this window. This timing works well because it allows you to start your travel day a bit later and arrive at your destination with plenty of time for your plans.
How long does it take to fly from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
There are no nonstop flights from Ottawa Macdonald-Cartier International Airport (YOW) to Buffalo Niagara International Airport (BUF). For flights with one stop, you can expect the journey to take around 4 hours 18 minutes. Flights with two or more stops typically take longer, averaging about 12 hours. The distance between these two airports is approximately 360 kilometres. Keep in mind that actual travel times can vary depending on the specific routing, layover duration, and factors like weather.
Can you fly business or first class from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Yes, you can fly business class or first class between Ottawa Macdonald-Cartier International Airport (YOW) and Buffalo Niagara International Airport (BUF).Airlines that offer business class service on this route include:

  • Air Canada
  • United

First class cabins are available on United.
How do I earn miles on a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight with Expedia?
It's easy to earn miles on a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Buffalo, NY (BUF) from Ottawa, ON (YOW)?
If you're planning to travel to Buffalo from Macdonald-Cartier Intl. (YOW), you can fly directly into Buffalo Niagara Intl. (BUF). Some flights may connect through major hubs like Pearson Intl. (YYZ), Pierre Elliott Trudeau Intl. (YUL), or Washington Dulles Intl. (IAD) before reaching Buffalo. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) at the last minute?
Typically, booking a last minute flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight and hotel package?
Securing a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ottawa, ON (YOW) to Buffalo, NY (BUF)?
If you booked your Ottawa, ON (YOW) to Buffalo, NY (BUF) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Macdonald-Cartier Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
Air Canada, American Airlines, United
Roundtrip price
CA $811
Distance
358 km

Book with confidence

Ottawa to Buffalo Flights

The easy way to book your flights from Ottawa to Buffalo 

With Expedia, it’s simple to find and book flights to Buffalo from Ottawa whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Buffalo Niagara Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ottawa to Buffalo today, tomorrow, or this week.  

 

Save dollars with cheap flights from Macdonald-Cartier Intl., YOW to Buffalo Niagara Intl., BUF 

Sort your search results by price to find great deals on your flight from Ottawa to Buffalo—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Buffalo from Ottawa currently is just CA $811 rising to CA $940.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Buffalo  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Buffalo from Ottawa 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Buffalo with Expedia today.

Ottawa to Buffalo Flights

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