$66 Cheap Flights from Buffalo (BUF) to Washington (IAD)

View $66 flight on Thu, Nov 13, 2025Opens in a new window

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

Cheap Flights from Buffalo to Washington (BUF-IAD)

Prices were available within the past 7 days and start at $66 for one-way flights and $150 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Nov 10 - Mon, Nov 17
BUF
Buffalo
IAD
Washington
$150 Roundtrip, found 1 day ago
$150
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Nov 10 from Buffalo to Washington, returning Mon, Nov 17, priced at $150 found 1 day ago
Frontier Airlines
Sun, Nov 9 - Thu, Nov 13
BUF
Buffalo
IAD
Washington
$153 Roundtrip, found 6 hours ago
$153
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sun, Nov 9 from Buffalo to Washington, returning Thu, Nov 13, priced at $153 found 6 hours ago
Frontier Airlines
Thu, Nov 13 - Mon, Nov 17
BUF
Buffalo
IAD
Washington
$160 Roundtrip, found 6 hours ago
$160
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Thu, Nov 13 from Buffalo to Washington, returning Mon, Nov 17, priced at $160 found 6 hours ago
United
Thu, Nov 20 - Sat, Nov 22
BUF
Buffalo
IAD
Washington
$179 Roundtrip, found 1 hour ago
$179
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Nov 20 from Buffalo to Washington, returning Sat, Nov 22, priced at $179 found 1 hour ago
Frontier Airlines
Thu, Nov 13 - Mon, Nov 17
BUF
Buffalo
IAD
Washington
$180 Roundtrip, found 1 day ago
$180
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Nov 13 from Buffalo to Washington, returning Mon, Nov 17, priced at $180 found 1 day ago
United
Sat, Nov 15 - Tue, Nov 18
BUF
Buffalo
IAD
Washington
$184 Roundtrip, found 18 hours ago
$184
Roundtrip
found 18 hours ago
Select United flight, departing Sat, Nov 15 from Buffalo to Washington, returning Tue, Nov 18, priced at $184 found 18 hours ago
Frontier Airlines
Fri, Nov 14 - Sun, Nov 16
BUF
Buffalo
IAD
Washington
$186 Roundtrip, found 4 hours ago
$186
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Fri, Nov 14 from Buffalo to Washington, returning Sun, Nov 16, priced at $186 found 4 hours ago
United
Thu, Nov 20 - Sat, Nov 22
BUF
Buffalo
IAD
Washington
$189 Roundtrip, found 1 hour ago
$189
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Nov 20 from Buffalo to Washington, returning Sat, Nov 22, priced at $189 found 1 hour ago
Delta
Sat, Nov 22 - Tue, Dec 2
BUF
Buffalo
IAD
Washington
$199 Roundtrip, found 5 hours ago
$199
Roundtrip
found 5 hours ago
Select Delta flight, departing Sat, Nov 22 from Buffalo to Washington, returning Tue, Dec 2, priced at $199 found 5 hours ago
American Airlines
Wed, Dec 17 - Wed, Jan 7
BUF
Buffalo
IAD
Washington
$263 Roundtrip, found 22 hours ago
$263
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Wed, Dec 17 from Buffalo to Washington, returning Wed, Jan 7, priced at $263 found 22 hours ago

Find the cheapest month to fly from Buffalo (BUF) to Washington (IAD)

April is typically the cheapest month to fly

From $138 - $407 per traveler.

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 center is 8 minutes. Flights from $249
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $249

Frequently asked questions

How much does a flight from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD) cost?
Get a cheap one-way flight from $66 or cheap return flight from $150 from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD)?
November is the most affordable month to fly from BUF to IAD. Traveling outside of peak seasons is often the key to scoring lower fares.
Which airlines fly direct from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD)?
Take a nonstop flight with United Airlines and go straight from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD).
What is the cheapest airline that flies from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD)?
To find the cheapest airline flying from BUF to IAD, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD)?
When departing from Buffalo Niagara Intl. Airport (BUF), you can take your pick from an average of 3 daily nonstop flights to Washington Dulles Intl. Airport (IAD).
What are the most popular departure times for flights from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD)?
The 10 AM departures from BUF to IAD are typically the busiest. Greater demand means you'll likely pay more for these departures. If you want to save money, book during off-peak hours.
What day of the week has the most flights from BUF to IAD?
Fly on a Sunday if you're looking for the largest selection of flights from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD)?
Buffalo Niagara Intl. Airport (BUF)'s first flight to Washington Dulles Intl. Airport (IAD) leaves at approximately 6:00AM UTC-5. With a total travel time of 1h 29m, you'll arrive at around 7:29AM UTC-5.
How long does it take to fly from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD)?
The average flight time from BUF to IAD is 1 hour and 29 minutes, covering a distance of 280 mi.
What airline has the least delays from BUF to IAD?
Consider traveling with Lufthansa if you'd like to fly straight from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD) without any interruptions. This airline has the best track record for punctuality, with an on-time performance of 85%. Want real-time updates? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD)?
To avoid potential delays on the Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD) route, aim to fly before 3 PM. Later flights have a 22% higher chance of being canceled.**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 Washington from Buffalo Niagara Intl. Airport (BUF)?
Board a direct flight from Buffalo Niagara Intl. Airport (BUF) to Washington and land at any one of these hubs:

  • Ronald Reagan Washington National Airport (DCA)
  • Washington Dulles Intl. Airport (IAD)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)

Is it cheaper to buy a plane ticket from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your flight from BUF to IAD just before your getaway is generally more expensive. However, if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a BUF to IAD flight and hotel package?
Compared with arranging hotels and flights separately, booking a BUF to IAD flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the hassle out of planning your trip. Simply secure your flights and select from our wide range of stays, then personalize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD)?
In most instances, you can modify or cancel your BUF to IAD flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need more details, head to our Customer Service portal.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$150
Distance
283 mi
Average flight time
1 hour 21 mins

Book with confidence

Buffalo to Washington Flights

The cheapest times to fly from Buffalo to Washington

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 Buffalo to Washington are during the month of November. You can find some of the cheapest flights from Buffalo to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Buffalo to Washington

Sunday is one of the best days to book for cheap flights from Buffalo to Washington: 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 Buffalo to Washington

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 Buffalo to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $66 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 Buffalo to Washington 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 Buffalo to Washington 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.

 

Buffalo to Washington Flights

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*Available to One Key members.