$377 Cheap Flights from Buffalo (BUF) to Ottawa (YOW)

You can find cheap one-way flights from $377 and cheap return flights $763 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) with Expedia. One-way flights generally range between $351 and $1024, and roundtrip flights usually range from $744 to $1894. 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) ticket fares go up or down.

*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

The cheapest month to fly from BUF to YOW is October 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're able to. Use the calendar view in your search to see which months have low fares on this route.

Enter BUF to YOW and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.), 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.

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.

The earliest flight from Buffalo Niagara International Airport (BUF) to Macdonald-Cartier International Airport (YOW) typically departs at around 6:00 AM. This seasonal service is available in October, and an early departure can help you enjoy more time in Ottawa. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

The most popular departure times for flights from Buffalo, NY (BUF) to Ottawa, ON (YOW) are in the early morning, from 6am to 9am. About 46% of passengers prefer this time window. Many major carriers, including United Airlines, offer flights during this window. This timing works well because it helps you arrive in Ottawa early, giving you a full day to enjoy the city.

A flight from BUF to YOW with a layover takes around 4 hours, with the route covering approximately 224 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

Business class seats are offered on the BUF to YOW route with United Airlines.

First class is available with United Airlines.

It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ottawa, ON (YOW-Macdonald-Cartier 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.

From Buffalo Niagara Intl. (BUF), you can fly into Macdonald-Cartier Intl. (YOW) to reach Ottawa. Some flights may connect through major hubs like O'Hare Intl. (ORD), Liberty Intl. (EWR), LaGuardia (LGA) before reaching Ottawa. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ottawa, ON (YOW-Macdonald-Cartier 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.

Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) Ottawa Vacation Packages 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.

If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) 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.