HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Buffalo

$142+ Cheap flights from Dulles Intl (IAD) to Buffalo (BUF)

IAD — BUF
Sep 30 — Oct 71
Wed 9/30
Wed 10/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Buffalo with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Buffalo

Cheapest flights from Dulles Intl to Buffalo

Sat 9/54:52 pm -
1 stop16h 31m
Tue 9/811:36 am -
1 stop5h 38m
Deal found 8/27$250
Thu 11/56:05 am -
1 stop5h 30m
Sun 11/87:00 am -
1 stop4h 50m
Deal found 8/28$251
Fri 9/187:50 am -
1 stop5h 05m
Sun 9/2012:49 pm -
1 stop20h 43m
Deal found 8/27$252
Fri 9/117:50 am -
1 stop5h 05m
Mon 9/141:40 pm -
1 stop10h 30m
Deal found 8/26$255
Fri 9/117:50 am -
1 stop5h 05m
Tue 9/156:51 pm -
1 stop15h 26m
Deal found 8/29$256
Thu 9/1711:12 am -
1 stop6h 33m
Mon 9/211:40 pm -
1 stop10h 30m
Deal found 8/30$258
Thu 9/2411:12 am -
1 stop6h 33m
Mon 9/281:40 pm -
1 stop10h 30m
Deal found 8/30$260
Thu 9/1711:12 am -
1 stop6h 33m
Sun 9/2012:49 pm -
1 stop20h 43m
Deal found 8/28$263
Sat 10/105:08 pm -
1 stop5h 30m
Sun 10/117:43 pm -
1 stop3h 33m
Deal found 8/27$264
Thu 10/111:12 am -
1 stop6h 33m
Mon 10/51:40 pm -
1 stop10h 30m
Deal found 8/30$265
Mon 10/129:06 pm -
2 stops20h 50m
Mon 10/191:44 pm -
1 stop10h 37m
Deal found 8/28$267

Find flight deals from Dulles Intl to Buffalo

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$247
(CheapOair)

One-way from

$142
(Kiwi.com)

Popular in

April

Cheapest in

December

Average price

$379

Good round-trip deal

$374 or less

Good one-way deal

$293 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Buffalo flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Buffalo flights.
Search Deals
From Washington, D.C. Dulles Intl to Buffalo
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Buffalo
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Buffalo.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Buffalo.
Search Deals

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

Wed 10/28

12:50 pm-2:20 pm

Nonstop1h 30m

Buffalo

Sun 11/8

6:00 am-7:28 am

Nonstop1h 28m

$269
Quickest round-trip

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Fri 11/20

8:32 am-9:54 am

Nonstop1h 22m

Buffalo

Mon 11/23

7:52 pm-9:18 pm

Nonstop1h 26m

$286

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Wed 10/28

10:57 am-3:13 pm

1 stop4h 16m

Buffalo

Sat 11/7

12:15 pm-4:16 pm

1 stop4h 01m

$289

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Wed 10/28

6:32 pm-12:19 am

1 stop5h 47m

Buffalo

Thu 11/5

7:00 am-11:50 am

1 stop4h 50m

$289

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Thu 9/10

11:10 am-3:13 pm

1 stop4h 03m

Buffalo

Sun 9/13

6:20 am-10:21 am

1 stop4h 01m

$334

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Sat 10/17

4:02 pm-8:47 pm

1 stop4h 45m

Buffalo

Tue 10/20

7:59 pm-9:20 pm

Nonstop1h 21m

$349

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Wed 10/21

1:10 pm-8:47 pm

1 stop7h 37m

Buffalo

Sat 10/24

7:59 pm-9:20 pm

Nonstop1h 21m

$366

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Sat 9/12

10:17 pm-11:44 pm

Nonstop1h 27m

Buffalo

Wed 9/16

10:33 am-11:55 am

Nonstop1h 22m

$384

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Thu 9/10

10:17 pm-11:44 pm

Nonstop1h 27m

Buffalo

Sun 9/13

6:10 am-7:33 am

Nonstop1h 23m

$404

Washington, D.C.Buffalo

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

IADBUF

Washington, D.C. Dulles Intl

Wed 11/25

6:10 am-10:08 am

1 stop3h 58m

Buffalo

Fri 11/27

6:00 am-7:28 am

Nonstop1h 28m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/29

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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 August.
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 $239 and $408 in September.
The cheapest round-trip price found within the last 5 days was $247 on Frontier (Sep 10-Sep 16).

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
10,146 reviews

Food

6.7

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

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
10,146 reviews
United Airlines
7.4
Good
10,146 reviews

Food

6.7

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

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 30m. United Airlines provides one of the quickest options available for as low as $269. There are 284 mi between Washington, D.C. Dulles Intl Airport and Buffalo. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $179, 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 48% 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: CommutAir (86%), Copa Airlines (78%), GoJet (76%).

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

    On average you can expect to pay $396 for a flight from Washington, D.C. Dulles Intl Airport to Buffalo. The cheapest flight overall is $143 while the most popular route, (Washington, D.C. Dulles Intl - Buffalo) is currently priced at $260.

  • 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
Lockport
Cheektowaga
Amherst
Williamsville
Orchard Park
Eden
Bowmansville

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Dulles Intl to Buffalo

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$352FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.