$85 Cheap Flights from Buffalo (BUF) to Washington (IAD)

View $85 flight on Mon, May 19, 2025Opens in a new window

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

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Find available prices by choosing your travel dates.

Cheap Flights from Buffalo to Washington (BUF-IAD)

Prices were available within the past 7 days and start at $85 for one-way flights and $170 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, May 15 - Sun, May 18
BUF
Buffalo
IAD
Washington
$170 Roundtrip, found 17 hours ago
$170
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Thu, May 15 from Buffalo to Washington, returning Sun, May 18, priced at $170 found 17 hours ago
Frontier Airlines
Thu, May 15 - Sat, May 31
BUF
Buffalo
IAD
Washington
$171 Roundtrip, found 20 hours ago
$171
Roundtrip
found 20 hours ago
Select Frontier Airlines flight, departing Thu, May 15 from Buffalo to Washington, returning Sat, May 31, priced at $171 found 20 hours ago
Frontier Airlines
Sat, Jun 7 - Sat, Jun 14
BUF
Buffalo
IAD
Washington
$172 Roundtrip, found 10 hours ago
$172
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Sat, Jun 7 from Buffalo to Washington, returning Sat, Jun 14, priced at $172 found 10 hours ago
United
Wed, Jun 4 - Tue, Jun 10
BUF
Buffalo
IAD
Washington
$179 Roundtrip, found 4 hours ago
$179
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Jun 4 from Buffalo to Washington, returning Tue, Jun 10, priced at $179 found 4 hours ago
Frontier Airlines
Sun, May 11 - Thu, May 15
BUF
Buffalo
IAD
Washington
$180 Roundtrip, found 1 hour ago
$180
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sun, May 11 from Buffalo to Washington, returning Thu, May 15, priced at $180 found 1 hour ago
Frontier Airlines
Sat, May 10 - Mon, May 12
BUF
Buffalo
IAD
Washington
$181 Roundtrip, found 6 hours ago
$181
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sat, May 10 from Buffalo to Washington, returning Mon, May 12, priced at $181 found 6 hours ago
United
Wed, May 7 - Wed, May 14
BUF
Buffalo
IAD
Washington
$184 Roundtrip, found 5 hours ago
$184
Roundtrip
found 5 hours ago
Select United flight, departing Wed, May 7 from Buffalo to Washington, returning Wed, May 14, priced at $184 found 5 hours ago
Delta
Wed, Jul 2 - Sat, Jul 5
BUF
Buffalo
IAD
Washington
$186 Roundtrip, just found
$186
Roundtrip
just found
Select Delta flight, departing Wed, Jul 2 from Buffalo to Washington, returning Sat, Jul 5, priced at $186 just found
United
Wed, Aug 6 - Wed, Aug 13
BUF
Buffalo
IAD
Washington
$189 Roundtrip, found 10 hours ago
$189
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Aug 6 from Buffalo to Washington, returning Wed, Aug 13, priced at $189 found 10 hours ago
American Airlines
Wed, Jul 2 - Sat, Jul 5
BUF
Buffalo
IAD
Washington
$251 Roundtrip, just found
$251
Roundtrip
just found
Select American Airlines flight, departing Wed, Jul 2 from Buffalo to Washington, returning Sat, Jul 5, priced at $251 just found

Frequently asked questions

How much does a flight from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD) cost?
You can find cheap return tickets from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD) starting from $179. Book a seat and get ready for takeoff. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving BUF on May 10 2025 and touching down at IAD. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from BUF to IAD?
The cheapest flights from BUF to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
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 BUF to IAD?
With prices starting from $90 for a one-way journey from BUF to IAD, United is currently the cheapest airline for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BUF on May 24 2025. Prices were last updated on April 23 2025 and have not changed since.
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.
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