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$61+ Cheap flights from Dulles Intl (IAD) to Buffalo (BUF)

IAD — BUF
Oct 28 — Nov 41
Wed 10/28
Wed 11/4
1 adult, Economy
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Cheap flight deals from Dulles Intl to Buffalo

Cheapest flights from Dulles Intl to Buffalo

Wed 10/217:50 am -
2 stops34h 02m
Sat 10/241:44 pm -
1 stop10h 37m
Deal found 9/25$242
Thu 10/1511:12 am -
1 stop6h 40m
Sat 10/171:44 pm -
1 stop10h 37m
Deal found 9/25$243
Thu 10/159:06 pm -
1 stop15h 53m
Tue 10/206:51 pm -
2 stops29h 30m
Deal found 9/25$244
Fri 11/206:50 am -
1 stop6h 09m
Mon 11/239:20 pm -
1 stop23h 20m
Deal found 9/26$245
Thu 11/56:32 pm -
1 stop5h 27m
Sun 11/87:00 am -
1 stop4h 50m
Deal found 9/28$246
Fri 10/1612:55 pm -
Nonstop1h 28m
Mon 10/197:59 pm -
Nonstop1h 21m
Deal found 9/25$247
Fri 10/307:40 am -
1 stop5h 23m
Sun 11/112:54 pm -
1 stop21h 27m
Deal found 9/23$251
Wed 10/288:05 am -
1 stop5h 10m
Sun 11/16:47 pm -
2 stops46h 25m
Deal found 9/23$252
Sat 10/2410:24 pm -
Nonstop1h 26m
Wed 10/2810:35 am -
Nonstop1h 20m
Deal found 9/27$253
Sat 10/2410:24 pm -
Nonstop1h 26m
Mon 10/2610:35 am -
Nonstop1h 20m
Deal found 9/28$254
Fri 11/206:50 am -
1 stop6h 09m
Sun 11/229:20 pm -
1 stop23h 20m
Deal found 9/25$255
Sat 10/3112:50 pm -
Nonstop1h 30m
Tue 11/36:00 am -
Nonstop1h 29m
Deal found 9/25$256

Find flight deals from Dulles Intl to Buffalo

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$242
(Mytrip)

One-way from

$61
(Super.com)

Popular in

April

Cheapest in

December

Average price

$350

Good round-trip deal

$296 or less

Good one-way deal

$303 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Buffalo flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Buffalo flights.
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From Washington, D.C. Dulles Intl to Buffalo
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One-way flight from Washington, D.C. Dulles Intl to Buffalo
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Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Buffalo.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Buffalo.
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Tue 10/6

11:12 am-5:49 pm

1 stop6h 37m

Buffalo

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$135

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Sun 11/1

9:06 pm-1:03 pm

1 stop15h 57m

Buffalo

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$148

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Sun 10/25

5:35 pm-7:05 pm

Nonstop1h 30m

Buffalo

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$234

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Wed 11/25

8:32 am-9:54 am

Nonstop1h 22m

Buffalo

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$259
Quickest round-trip

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Sat 1/9

5:15 pm-6:26 pm

Nonstop1h 11m

Buffalo

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$259

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Fri 10/23

5:40 pm-7:07 pm

Nonstop1h 27m

Buffalo

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$259

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Sun 11/8

5:35 pm-7:05 pm

Nonstop1h 30m

Buffalo

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$259

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Tue 11/24

5:35 pm-7:04 pm

Nonstop1h 29m

Buffalo

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$259

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Wed 10/28

12:50 pm-2:20 pm

Nonstop1h 30m

Buffalo

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$259

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Tue 11/24

8:32 am-9:54 am

Nonstop1h 22m

Buffalo

Fri 11/27

7:52 pm-9:18 pm

Nonstop1h 26m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/23

Showing 1-10 of 19 resultsSorted by cheapest first
1
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Compare providers for flights from Dulles Intl to Buffalo

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Buffalo in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Washington, D.C. Dulles Intl Airport-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Buffalo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Buffalo 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 Washington, D.C. Dulles Intl Airport-Buffalo 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 Dulles Intl to Buffalo

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

Cheapflights Insights

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

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

Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Buffalo (average of $284). Flying from Washington, D.C. Dulles Intl Airport to Buffalo in April is currently the most expensive (average of $397). 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 IAD to BUF?

When flying from Washington, D.C. Dulles Intl Airport to Buffalo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Airfare is typical for this route at the moment.

Washington, D.C. Dulles Intl Airport to Buffalo flights typically cost between $232 and $369 in October.
The cheapest round-trip price found within the last 5 days was $242 on Frontier (Oct 21-Oct 24).

Reviews of airlines servicing Buffalo

Read reviews from past customers who have flown United Airlines from Washington, D.C. Dulles Intl Airport to Buffalo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,246 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
10,246 reviews
United Airlines
7.4
Good
10,246 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Related info for your journey

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

    For a flight from Washington, D.C. Dulles Intl to Buffalo, you will be flying into Buffalo. Buffalo (BUF) is just 8.3 mi from the center of the city. Buffalo is the only Buffalo airport and it handles 8 inbound flights from Washington, D.C. Dulles Intl per day. 1 airline has flights to Buffalo from Washington, D.C. Dulles Intl on a regular basis.

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

    A quick flight from Washington, D.C. Dulles Intl Airport to Buffalo can take about 1h 22m. United Airlines provides one of the quickest options available for as low as $289. There are 284 mi between Washington, D.C. Dulles Intl Airport and Buffalo. Generally, flights for this route are nonstop.

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

    Currently priced at $209, United Airlines will fly you from Washington, D.C. Dulles Intl Airport to Buffalo and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. You may be able to fly from Washington, D.C. Dulles Intl Airport to Buffalo for 39% less than the average price by searching for this airline.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Buffalo on time: Mesa Airlines (88%), Copa Airlines (82%), CommutAir (79%).

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

    On average you can expect to pay $375 for a flight from Washington, D.C. Dulles Intl Airport to Buffalo. The cheapest flight overall is $209 while the most popular route, (Washington, D.C. Dulles Intl - Buffalo) is currently priced at $163.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Buffalo 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 Washington, D.C. Dulles Intl Airport to Buffalo?

    Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Buffalo (average of $284). Flying from Washington, D.C. Dulles Intl Airport to Buffalo in April is currently the most expensive (average of $397). 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 Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Cheektowaga
Lockport
Amherst
Williamsville
Orchard Park
Eden
Bowmansville

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Top airline flying from Dulles Intl to Buffalo

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$209Average$350FlexibilityNo cancel feeOn-time69%

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