CA $230 Cheap Flights from Buffalo (BUF) to Washington (IAD)

View CA $230 flight on Tue, Jun 9, 2026Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles International Airport (IAD)

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Cheap flights from Buffalo (BUF) to Washington (IAD)

Prices were available within the past 7 days and start at CA $230 for one-way flights and CA $330 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, May 29 - Tue, Jun 2
BUF
Buffalo
IAD
Washington
CA $330 Roundtrip, found 5 days ago
CA $330
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, May 29 from Buffalo to Washington, returning Tue, Jun 2, priced at CA $330 found 5 days ago
American Airlines
Fri, Aug 28 - Sun, Aug 30
BUF
Buffalo
IAD
Washington
CA $354 Roundtrip, found 1 hour ago
CA $354
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Fri, Aug 28 from Buffalo to Washington, returning Sun, Aug 30, priced at CA $354 found 1 hour ago
American Airlines
Sat, May 23 - Wed, Jun 3
BUF
Buffalo
IAD
Washington
CA $362 Roundtrip, found 2 days ago
CA $362
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, May 23 from Buffalo to Washington, returning Wed, Jun 3, priced at CA $362 found 2 days ago
American Airlines
Sat, May 23 - Wed, Jun 3
BUF
Buffalo
IAD
Washington
CA $369 Roundtrip, found 2 days ago
CA $369
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, May 23 from Buffalo to Washington, returning Wed, Jun 3, priced at CA $369 found 2 days ago
Delta
Sat, May 23 - Tue, May 26
BUF
Buffalo
IAD
Washington
CA $372 Roundtrip, found 6 days ago
CA $372
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, May 23 from Buffalo to Washington, returning Tue, May 26, priced at CA $372 found 6 days ago
Delta
Mon, May 25 - Sat, Jun 6
BUF
Buffalo
IAD
Washington
CA $372 Roundtrip, found 1 day ago
CA $372
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, May 25 from Buffalo to Washington, returning Sat, Jun 6, priced at CA $372 found 1 day ago
Delta
Fri, Jun 5 - Mon, Jun 8
BUF
Buffalo
IAD
Washington
CA $375 Roundtrip, found 6 hours ago
CA $375
Roundtrip
found 6 hours ago
Select Delta flight, departing Fri, Jun 5 from Buffalo to Washington, returning Mon, Jun 8, priced at CA $375 found 6 hours ago
American Airlines
Sat, Oct 10 - Wed, Oct 21
BUF
Buffalo
IAD
Washington
CA $375 Roundtrip, found 1 day ago
CA $375
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Oct 10 from Buffalo to Washington, returning Wed, Oct 21, priced at CA $375 found 1 day ago
American Airlines
Fri, May 22 - Sun, May 31
BUF
Buffalo
IAD
Washington
CA $382 Roundtrip, found 1 day ago
CA $382
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, May 22 from Buffalo to Washington, returning Sun, May 31, priced at CA $382 found 1 day ago
United
Thu, Jun 25 - Sun, Jun 28
BUF
Buffalo
IAD
Washington
CA $422 Roundtrip, found 4 days ago
CA $422
Roundtrip
found 4 days ago
Select United flight, departing Thu, Jun 25 from Buffalo to Washington, returning Sun, Jun 28, priced at CA $422 found 4 days ago

Alternative airports near Washington

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

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city centre is 8 minutes. Flights from CA $375
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city centre8 min
Flights from CA $375

Frequently asked questions

How much does a flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) cost?
One-way flights typically cost between $889 and $1,541 and return flights often range between $827 and $2,618. 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 Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
May is typically the cheapest month to fly from Buffalo Niagara Intl. (BUF) to Washington Dulles Intl. (IAD), with average round-trip fares of approximately 630 CAD. This is about 16% lower than the average price throughout the year. May often sees lower prices as it's before the peak summer travel season, when demand tends to increase. Other cheap months to fly from Buffalo Niagara Intl. (BUF) to Washington Dulles Intl. (IAD) include January and August.
Which airlines fly direct from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Enter BUF to IAD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles 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.
What is the best airline to fly with from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best airline to fly with from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will differ from traveler to traveler. If you like to fly early, UA offers early morning flights. If price is the most important factor, UA typically offers the lowest fares. UA offers the most daily flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best time to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) is May. This month offers a great balance, as it's one of the cheapest times to fly, with average round-trip flights around 630 CAD, and it's also a popular time to travel, meaning you'll have plenty of flight options. May typically brings pleasant weather, making it an ideal time for a trip. This information is based on booking data from the past year.
How many flights per day from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
There are approximately 4 nonstop flights per day from Buffalo Niagara Intl. (BUF) to Washington Dulles Intl. (IAD). For even more choice, look at flights that include layovers, as there are around 26 connecting flights per day. Some common connection points include O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), and Detroit Metropolitan Wayne County (DTW).
What is the earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Buffalo Niagara Intl. (BUF) to Washington Dulles Intl. (IAD) typically departs at approximately 5:05 AM local time, operated by Southwest Airlines. This is a seasonal service active in June, July, and August. An early departure like this can help you maximize 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You'll typically find the most flights from Buffalo Niagara Intl. (BUF) to Washington Dulles Intl. (IAD) on a Friday, with around 20 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, Delta Air Lines, and American Airlines. Friday offers notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The most popular departure times for flights from Buffalo Niagara Intl. (BUF) to Washington Dulles Intl. (IAD) are in the early morning, from 6am to 9am. This accounts for around 31% of total traffic. Many major carriers, including Delta, United and American Airlines, offer flights during this window. This timing works well for many travelers as it allows for an early start to your day in Washington, DC.
How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
A nonstop flight from BUF to IAD typically takes around 1 hour 20 minutes, covering approximately 283 miles. Connecting flights on this route usually add 4 hours to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Select the "Business class" and "First class" filters when looking for BUF to IAD flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles 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 Washington from Buffalo Niagara Intl. (BUF)?
From Buffalo Niagara Intl. (BUF), you can fly into Washington Dulles Intl. (IAD) and Ronald Reagan Washington National (DCA) in Washington. Some flights may connect through major hubs like LaGuardia (LGA), Liberty Intl. (EWR), O'Hare Intl. (ORD) before reaching Washington. 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles 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.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
CA $330
Distance
452 km
Average flight time
1 hour 19 mins

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Buffalo to Chantilly Flights

The easy way to book your flights from Buffalo to Washington 

With Expedia, it’s simple to find and book flights to Washington from Buffalo 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 Washington Dulles 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 Buffalo to Washington today, tomorrow, or this week.  

 

Save dollars with cheap flights from Buffalo Niagara Intl., BUF to Washington Dulles Intl., IAD 

Sort your search results by price to find great deals on your flight from Buffalo to Washington—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Washington from Buffalo currently is just CA $330 rising to CA $422.  

Here are more money-saving tips: 

  • Fly in May when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Washington  
  • 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 Washington from Buffalo 

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 Washington with Expedia today.

Buffalo to Chantilly Flights

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