$90 Cheap United flights from Washington to Buffalo (IAD to BUF)

Find The Best Day To Fly from Washington to Buffalo

Amazing United IAD to BUF Flight Deals

The cheapest flights to Buffalo Niagara Intl. found within the past 7 days were $180 round trip and $90 one way. Prices and availability subject to change. Additional terms may apply.

Fri, Sep 12 - Sat, Sep 13
IAD
Washington
BUF
Buffalo
$180 Roundtrip, found 2 days ago
$180
Roundtrip
found 2 days ago
Select United flight, departing Fri, Sep 12 from Washington to Buffalo, returning Sat, Sep 13, priced at $180 found 2 days ago
Fri, Aug 15 - Mon, Aug 18
IAD
Washington
BUF
Buffalo
$210 Roundtrip, found 23 hours ago
$210
Roundtrip
found 23 hours ago
Select United flight, departing Fri, Aug 15 from Washington to Buffalo, returning Mon, Aug 18, priced at $210 found 23 hours ago
Fri, Sep 12 - Sat, Sep 13
IAD
Washington
BUF
Buffalo
$214 Roundtrip, found 2 days ago
$214
Roundtrip
found 2 days ago
Select United flight, departing Fri, Sep 12 from Washington to Buffalo, returning Sat, Sep 13, priced at $214 found 2 days ago
Tue, Sep 2 - Sun, Sep 7
IAD
Washington
BUF
Buffalo
$224 Roundtrip, found 6 days ago
$224
Roundtrip
found 6 days ago
Select United flight, departing Tue, Sep 2 from Washington to Buffalo, returning Sun, Sep 7, priced at $224 found 6 days ago
Tue, Sep 2 - Sun, Sep 7
IAD
Washington
BUF
Buffalo
$225 Roundtrip, found 6 days ago
$225
Roundtrip
found 6 days ago
Select United flight, departing Tue, Sep 2 from Washington to Buffalo, returning Sun, Sep 7, priced at $225 found 6 days ago
Thu, Aug 21 - Thu, Aug 21
IAD
Washington
BUF
Buffalo
$228 Roundtrip, found 4 days ago
$228
Roundtrip
found 4 days ago
Select United flight, departing Thu, Aug 21 from Washington to Buffalo, returning Thu, Aug 21, priced at $228 found 4 days ago

BUF From IAD Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Wyndham Garden at Niagara Falls

Wyndham Garden at Niagara Falls

3 out of 5
per person
Aug 5 - Aug 10
found 9 hours ago
Roundtrip non-stop flight included
Washington (DCA) to Buffalo (BUF)
Holiday Inn Express Grand Island - Niagara Falls by IHG

Holiday Inn Express Grand Island - Niagara Falls by IHG

2.5 out of 5
per person
Aug 5 - Aug 10
found 9 hours ago
Roundtrip non-stop flight included
Washington (DCA) to Buffalo (BUF)
Comfort Inn The Pointe

Comfort Inn The Pointe

3 out of 5
per person
Aug 5 - Aug 10
found 9 hours ago
Roundtrip non-stop flight included
Washington (DCA) to Buffalo (BUF)
Don't see what you're looking for?
See all available trips from Washington Dulles Intl. to Buffalo Niagara Intl.
View all trips

Frequently asked questions

Can I catch a flight from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara International Airport right now?
For any present BUF travel advice and quarantine requirements, visit the Covid-19 Travel Advisor. Look before you arrange your flight, so you don't get caught up.
What terminal is United Airlines at Dulles Intl. Airport?
If you're heading from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara International Airport, you'll most likely be getting off the plane at the main terminal. We can't say for certain which terminal you'll be departing from — it's wise to ask your airline.
Are there United Airlines non-stop flights from IAD to BUF?
Direct flights are available for booking with United Airlines, which means you'll be able to travel from Dulles Intl. Airport to BUF fast. Those one-of-a-kind travel experiences you desire are a convenient flight away.
How long is a United Airlines flight from IAD to BUF?
Weather and wind ... They're just some factors that can impact on how long your plane ride will last. However, a journey from IAD to Buffalo Niagara International Airport with United Airlines takes roughly 2 hours and 10 minutes, so you'll have landed and be in getaway mode in the blink of an eye.
What type of aircraft does United Airlines fly from IAD to BUF?
Booked a ticket with United Airlines from IAD to BUF? The Bombardier CRJ and the Embraer 175 are the two aircraft models that generally operate on this flight path.
How many direct and indirect flights does United Airlines fly from IAD to BUF?
Take your pick of around 4 flights daily with United Airlines from Washington Dulles Intl. Airport (IAD) to Buffalo Niagara Intl. Airport (BUF).
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Buffalo Niagara Intl. Airport (BUF), please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Washington IAD to Buffalo BUF 

To find the best deals on flights to Washington from Buffalo with United, just enter your travel dates, filter by United, and hit search. You’ll find 4 flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Washington IAD to Buffalo BUF with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $180 to $228, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Washington IAD to Buffalo BUF 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Washington to Buffalo costs from $90. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Buffalo BUF from  Washington IAD with United 

To find a cheap United flight from Washington IAD to Buffalo BUF, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Washington IAD to Buffalo BUF 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as September, or if you book a flight with a stopover. 

 

Find nonstop flights from Washington IAD to Buffalo BUF with United 

If you’re keen to be on Buffalo soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around 1 hour(s) 21 min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Washington IAD to Buffalo BUF 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Buffalo BUF from  Washington IAD with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to Buffalo

Buffalo Airport Hotel

Buffalo Airport Hotel

3 out of 5
4600 Genesee St, Buffalo, NY
This hotel features a restaurant, a 24-hour gym, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public ...
7.8/10 Good! (2,563 reviews)
"It’s good for living & very near airport , providing airport shuttle service also."

Reviewed on Jul 22, 2025

Buffalo Airport Hotel
Extended Stay America Suites - Buffalo - Airport

Extended Stay America Suites - Buffalo - Airport

2.5 out of 5
901 Dick Rd, Buffalo, NY
This hotel features an indoor pool and a 24-hour gym. Business travelers can take advantage of the free WiFi in public areas. Guests will appreciate freebies ...
7.2/10 Good! (744 reviews)
"Room was great inside and outside was disappointing"

Reviewed on Jul 19, 2025

Extended Stay America Suites - Buffalo - Airport
Fairfield Inn & Suites by Marriott Buffalo Airport

Fairfield Inn & Suites by Marriott Buffalo Airport

2.5 out of 5
4271 Genesee Street, Buffalo, NY
This hotel features an indoor pool and a 24-hour gym. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and free ...
8.6/10 Excellent! (1,010 reviews)
"."

Reviewed on Jul 20, 2025

Fairfield Inn & Suites by Marriott Buffalo Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.