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Dulles Intl

$100+ Cheap flights from Buffalo (BUF) to Dulles Intl (IAD)

BUF — IAD
Nov 29 — Dec 61
Sun 11/29
Sun 12/6
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Buffalo to Dulles Intl

Cheapest flights from Buffalo to Dulles Intl

Thu 11/197:52 pm -
Nonstop1h 26m
Mon 11/238:32 am -
Nonstop1h 21m
Deal found 10/28$240
Sat 12/2610:20 am -
Nonstop1h 35m
Wed 1/612:43 pm -
Nonstop1h 34m
Deal found 10/28$244
Wed 11/256:00 am -
Nonstop1h 28m
Sun 11/2910:19 pm -
Nonstop1h 25m
Deal found 10/26$246
Wed 11/112:00 pm -
1 stop9h 43m
Fri 11/137:32 am -
1 stop5h 31m
Deal found 10/27$250
Sat 12/2610:20 am -
Nonstop1h 35m
Tue 1/512:43 pm -
Nonstop1h 34m
Deal found 10/27$251
Fri 12/47:40 pm -
1 stop3h 43m
Sun 12/66:00 am -
1 stop5h 24m
Deal found 10/26$256
Wed 12/21:15 pm -
2 stops21h 08m
Thu 12/310:33 pm -
1 stop13h 46m
Deal found 10/28$259
Mon 11/91:48 pm -
1 stop9h 55m
Fri 11/137:32 am -
1 stop5h 31m
Deal found 10/25$260
Thu 11/192:34 pm -
1 stop9h 09m
Mon 11/236:50 am -
1 stop6h 09m
Deal found 10/28$262
Fri 12/41:15 pm -
2 stops31h 13m
Sun 12/610:35 pm -
1 stop13h 45m
Deal found 10/26$269

Find flight deals from Buffalo to Dulles Intl

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$240
(United Airlines)

One-way from

$100
(Kiwi.com)

Popular in

April

Cheapest in

March

Average price

$361

Good round-trip deal

$371 or less

Good one-way deal

$248 or less
Provider with most accurate pricing for Buffalo-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Buffalo-Washington, D.C. Dulles Intl flights.
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From Buffalo to Washington, D.C. Dulles Intl
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One-way flight from Buffalo to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Price to beat on a round-trip flight from Buffalo to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Buffalo to Washington, D.C. Dulles Intl.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Buffalo to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloWashington, D.C.

BUF Buffalo - IAD Washington, D.C. Dulles Intl

BUFIAD

Buffalo

Wed 12/2

1:15 pm-5:45 pm

1 stop28h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$100

BuffaloWashington, D.C.

BUF Buffalo - IAD Washington, D.C. Dulles Intl

BUFIAD

Buffalo

Fri 11/13

1:48 pm-11:43 pm

1 stop9h 55m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$136

BuffaloWashington, D.C.

BUF Buffalo - IAD Washington, D.C. Dulles Intl

BUFIAD

Buffalo

Wed 11/4

2:00 pm-11:43 pm

1 stop9h 43m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$184

BuffaloWashington, D.C.

BUF Buffalo - IAD Washington, D.C. Dulles Intl

BUFIAD

Buffalo

Sun 11/15

6:00 am-7:28 am

Nonstop1h 28m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$234

BuffaloWashington, D.C.

BUF Buffalo - IAD Washington, D.C. Dulles Intl

BUFIAD

Buffalo

Thu 11/12

5:42 pm-5:56 pm

3 stops24h 14m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$238

BuffaloWashington, D.C.

BUF Buffalo - IAD Washington, D.C. Dulles Intl

BUFIAD

Buffalo

Thu 11/19

7:52 pm-9:18 pm

Nonstop1h 26m

Washington, D.C. Dulles Intl

Mon 11/23

8:32 am-9:53 am

Nonstop1h 21m

$241

BuffaloWashington, D.C.

BUF Buffalo - IAD Washington, D.C. Dulles Intl

BUFIAD

Buffalo

Mon 1/11

2:52 pm-4:27 pm

Nonstop1h 35m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$244

BuffaloWashington, D.C.

BUF Buffalo - IAD Washington, D.C. Dulles Intl

BUFIAD

Buffalo

Thu 1/14

6:15 am-11:59 am

1 stop5h 44m

Washington, D.C. Dulles Intl

Sun 1/17

6:01 am-11:54 am

1 stop5h 53m

$246
Quickest round-trip

BuffaloWashington, D.C.

BUF Buffalo - IAD Washington, D.C. Dulles Intl

BUFIAD

Buffalo

Wed 12/2

3:00 pm-4:25 pm

Nonstop1h 25m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$269

BuffaloWashington, D.C.

BUF Buffalo - IAD Washington, D.C. Dulles Intl

BUFIAD

Buffalo

Tue 12/1

10:00 am-11:27 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 22 resultsSorted by cheapest first
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Compare providers for flights from Buffalo to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Dulles Intl in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buffalo-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Buffalo to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Buffalo with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Buffalo to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Buffalo to Washington, D.C. Dulles Intl Airport?

Currently, March is the cheapest month in which you can book a flight from Buffalo to Washington, D.C. Dulles Intl Airport (average of $263). Flying from Buffalo to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $394). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BUF to IAD?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 63% on flights from Buffalo to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the morning.

What is the cheapest day to fly from Buffalo to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Buffalo to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Buffalo to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.

Buffalo to Washington, D.C. Dulles Intl Airport flights typically cost between $264 and $351 in November.
The cheapest round-trip price found within the last 5 days was $240 on United Airlines (Nov 19-Nov 23).

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with United Airlines from Buffalo to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.3
Good
10,451 reviews

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.3
Good
10,451 reviews
United Airlines
7.3
Good
10,451 reviews

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

  • What airport do you fly from for flights from Buffalo to Washington, D.C. Dulles Intl?

    Most people fly from Buffalo (BUF) if they book a flight from Buffalo to Washington, D.C. Dulles Intl. On average, Buffalo has 3 outbound flights to Washington, D.C. Dulles Intl per day from 1 airline. Buffalo is conveniently located just 8.3 mi from Buffalo’s city center.

  • How long is the flight from Buffalo to Washington, D.C. Dulles Intl Airport?

    United Airlines and Delta can get you from Buffalo to Washington, D.C. Dulles Intl Airport in just under 1h 26m. Your travel time can differ by up to 4h 18m. Buffalo and Washington, D.C. Dulles Intl Airport are separated by a distance of 284 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Buffalo to Washington, D.C. Dulles Intl Airport round-trip?

    According to our current data, United Airlines ($206), offers the cheapest pricing from Buffalo to Washington, D.C. Dulles Intl Airport. United Airlines is priced at 34% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Buffalo to Washington, D.C. Dulles Intl Airport?

    Before booking your flight to Washington, D.C. Dulles Intl Airport from Buffalo, check out the most reliable airlines to get you to your destination on time: Mesa Airlines (100%), Republic Airways (94%), United Airlines( 87%).

  • What are the cheapest flights from Buffalo to Washington, D.C. Dulles Intl Airport?

    Looking for the cheapest flight from Buffalo to Washington, D.C. Dulles Intl Airport? While on average our users pay $791, our data indicates the cheapest price to be $184. The most popular route (Buffalo - Washington, D.C. Dulles Intl), is priced around $137.

  • Can I find deals for flights from Buffalo to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Buffalo to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Dulles Intl.

  • Can I find deals for business class flights from Buffalo to Dulles Intl?

    Yes. Cheapflights offers flight deals from Buffalo to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buffalo to Washington, D.C. Dulles Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from Buffalo to Washington, D.C. Dulles Intl Airport (average of $263). Flying from Buffalo to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $394). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Chantilly
Woodbridge
Arlington
Owings Mills
Sterling
Lanham
Reston
Herndon
Hyattsville
Rockville
Springfield
Fredericksburg
Tysons
Falls Church
Towson
Silver Spring
Oxon Hill
Laurel
Clinton

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Buffalo to Dulles Intl

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$206Average$321FlexibilityNo cancel feeOn-time69%

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