$82 Cheap Flights from Washington (IAD) to Buffalo (BUF)

View $82 flight on Sun, Sep 7, 2025Opens in a new window

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

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Cheap Flights from Washington to Buffalo (IAD-BUF)

Prices were available within the past 7 days and start at $82 for one-way flights and $163 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Sep 8 - Thu, Sep 11
IAD
Washington
BUF
Buffalo
$163 Roundtrip, found 2 hours ago
$163
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Sep 8 from Washington to Buffalo, returning Thu, Sep 11, priced at $163 found 2 hours ago
Frontier Airlines
Mon, Sep 8 - Thu, Sep 11
IAD
Washington
BUF
Buffalo
$167 Roundtrip, found 2 hours ago
$167
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Sep 8 from Washington to Buffalo, returning Thu, Sep 11, priced at $167 found 2 hours ago
Frontier Airlines
Thu, Aug 28 - Fri, Sep 5
IAD
Washington
BUF
Buffalo
$175 Roundtrip, found 7 hours ago
$175
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, Aug 28 from Washington to Buffalo, returning Fri, Sep 5, priced at $175 found 7 hours ago
United
Thu, Mar 26 - Mon, Mar 30
IAD
Washington
BUF
Buffalo
$179 Roundtrip, just found
$179
Roundtrip
just found
Select United flight, departing Thu, Mar 26 from Washington to Buffalo, returning Mon, Mar 30, priced at $179 just found
United
Tue, Sep 2 - Sat, Sep 6
IAD
Washington
BUF
Buffalo
$184 Roundtrip, found 1 day ago
$184
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 2 from Washington to Buffalo, returning Sat, Sep 6, priced at $184 found 1 day ago
Frontier Airlines
Thu, Sep 4 - Thu, Sep 11
IAD
Washington
BUF
Buffalo
$186 Roundtrip, found 2 hours ago
$186
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Thu, Sep 4 from Washington to Buffalo, returning Thu, Sep 11, priced at $186 found 2 hours ago
United
Sat, Sep 13 - Sun, Sep 14
IAD
Washington
BUF
Buffalo
$187 Roundtrip, found 4 days ago
$187
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 13 from Washington to Buffalo, returning Sun, Sep 14, priced at $187 found 4 days ago
United
Thu, Jan 8 - Thu, Jan 15
IAD
Washington
BUF
Buffalo
$189 Roundtrip, found 6 days ago
$189
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jan 8 from Washington to Buffalo, returning Thu, Jan 15, priced at $189 found 6 days ago
Delta
Fri, Sep 19 - Mon, Sep 22
IAD
Washington
BUF
Buffalo
$199 Roundtrip, found 1 hour ago
$199
Roundtrip
found 1 hour ago
Select Delta flight, departing Fri, Sep 19 from Washington to Buffalo, returning Mon, Sep 22, priced at $199 found 1 hour ago
American Airlines
Thu, Oct 16 - Sat, Oct 18
IAD
Washington
BUF
Buffalo
$266 Roundtrip, found 22 hours ago
$266
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Thu, Oct 16 from Washington to Buffalo, returning Sat, Oct 18, priced at $266 found 22 hours ago

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

April is typically the cheapest month to fly

From $138 - $348 per traveler.

Graph displaying average flight prices per month

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 center is 16 minutes. Flights from $244
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $244
Flights from Washington (IAD) to Buffalo (BUF)
Origin airport
Washington Dulles Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$161
Distance
283 mi
Average flight time
1 hour 25 mins

Washington to Buffalo Flights

The cheapest times to fly from Washington to Buffalo

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

 

The best time to book a flight from Washington to Buffalo

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

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 Washington to Buffalo in 2025. You can also book with separate airlines for your outbound and return journeys, from $82 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 Washington to Buffalo 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 Washington to Buffalo 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.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF) cost?
Grab a cheap one-way flight from $82 or cheap return flight from $163 from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF)?
The cheapest month to fly from IAD to BUF is September, when there's less demand. Off-peak season is typically when airlines offer lower prices between these airports.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF)?
Fly directly from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF) on a United Airlines flight.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest IAD to BUF flight.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF)?
With, on average, 3 direct flights departing from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF) each day, you'll be on your way in no time.
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF)?
The 5 PM departures from IAD to BUF see the highest demand. These flights can come with a higher price due to their popularity. If you want to save money, book during off-peak hours.
What day of the week has the most flights from IAD to BUF?
If you jet off on a Friday, you'll get the widest range of options for flights from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF).
What is the earliest flight from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF)?
The first flight of the day leaving Washington Dulles Intl. Airport (IAD) is at around 12:35PM UTC-5. Board this flight and you'll land at Buffalo Niagara Intl. Airport (BUF) at approximately 2:02PM UTC-5. The overall travel time is 1h 27m.
How long does it take to fly from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF)?
Typically, it takes 1 hour and 27 minutes to travel the 280 mi from IAD to BUF.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF)?
To arrive at Buffalo Niagara Intl. Airport (BUF) on time, book a flight that takes off from Washington Dulles Intl. Airport (IAD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Buffalo from Washington Dulles Intl. Airport (IAD)?
Hop on a direct flight from Washington Dulles Intl. Airport (IAD) to Buffalo and touch down at Buffalo Niagara Intl. Airport (BUF). An alternative point of entry into the city is Billy Bishop Toronto City Airport (YTZ).
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Holding off until just before your trip to book a ticket from IAD to BUF often results in higher prices. While you might find some last-minute discounts, they aren't always guaranteed. Allow some flexibility in your schedule to maximize your chances of getting a bargain.
Is it cheaper to book an IAD to BUF flight and hotel package?
Securing an IAD to BUF flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our wide range of hotels and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF)?
Typically, it's possible to reschedule or cancel your IAD to BUF flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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