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$60+ Cheap flights from Dulles Intl (IAD) to Buffalo (BUF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BUF
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Buffalo are usually found in January or March, booked 87 days in advance, depart on a Thursday or Tuesday and return on a Friday

Cheap flight deals from Dulles Intl to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Buffalo (BUF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 3, 2025.

Round-trip from

$192
(United Airlines)

One-way from

$60
(Priceline)

Popular in

November

Cheapest in

January

Average price

$369

Good round-trip deal

$254 or less

Good one-way deal

$145 or less
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. 9% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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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Find flight deals from Dulles Intl to Buffalo

Cheapest flights from Dulles Intl to Buffalo
Explore the most affordable flight options available from Dulles Intl to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/238:25 amIAD - BUF
Nonstop1h 21mUnited Airlines
lun. 8/256:00 amBUF - IAD
Nonstop1h 20mUnited Airlines
Deal found 7/1$192
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/96:00 amIAD - BUF
1 stop6h 10mDelta
mar. 8/126:20 amBUF - IAD
1 stop5h 12mDelta
Deal found 7/2$198
This FlightHub deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/251:27 pmIAD - BUF
1 stop19h 25mFrontier
dom. 7/279:12 pmBUF - IAD
1 stop15h 30mFrontier
Deal found 7/1$214
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/309:03 amIAD - BUF
2 stops8h 33mAmerican Airlines
mié. 8/61:04 pmBUF - IAD
1 stop5h 48mAmerican Airlines
Deal found 7/1$256

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl to Buffalo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
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

Dulles Intl

Fly to

Buffalo

Route

Depart

Return

Price

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

sáb. 8/23

8:25 am-9:46 am

Nonstop1h 21m

Buffalo

lun. 8/25

6:00 am-7:20 am

Nonstop1h 20m

$192

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

sáb. 8/9

6:00 am-12:10 pm

1 stop6h 10m

Buffalo

mar. 8/12

6:20 am-11:32 am

1 stop5h 12m

$198

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

vie. 7/25

1:27 pm-8:52 am

1 stop19h 25m

Buffalo

dom. 7/27

9:12 pm-12:42 pm

1 stop15h 30m

$214

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

mié. 7/30

9:03 am-5:36 pm

2 stops8h 33m

Buffalo

mié. 8/6

1:04 pm-6:52 pm

1 stop5h 48m

$256

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

lun. 8/25

6:10 am-11:38 am

1 stop5h 28m

$60

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

mar. 9/30

8:20 am-9:43 am

Nonstop1h 23m

$69

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

mar. 8/5

8:31 pm-12:53 am

1 stop4h 22m

$89

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

mar. 9/30

11:18 am-9:51 pm

2 stops10h 33m

$131

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Buffalo?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Buffalo. Price data was last updated on June 27, 2025.

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Buffalo, you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Buffalo (average of $256). Flying from Washington, D.C. Dulles Intl Airport to Buffalo in December is currently the most expensive (average of $337). 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?

Find hourly flight availability from Dulles Intl to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 3, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Buffalo in the afternoon. Doing so could potentially save you 24% on the flight price compared to flying at noon, which is usually more expensive.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Buffalo

Explore weekly flight availability from Dulles Intl to Buffalo. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated julio 3, 2025.

The most flights from IAD to BUF are scheduled on a Monday (10 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buffalo. Reviews last updated julio 3, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American 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.
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Frontier
5.9
Fair
3,286 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 9 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.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Buffalo round-trip?

    Currently priced at $192, 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. Search Cheapflights for deals from Delta and Frontier - these airlines can fly you to your destination from $198 and $214, respectively. You may be able to fly from Washington, D.C. Dulles Intl Airport to Buffalo for 40% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Buffalo one-way?

    $60 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $69 and $89, respectively.

  • 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 (84%), Copa Airlines (74%), Avianca (69%).

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

    On average you can expect to pay $241 for a flight from Washington, D.C. Dulles Intl Airport to Buffalo. The cheapest flight overall is $119 while the most popular route, (Washington, D.C. Dulles Intl - Buffalo) is currently priced at $137.

  • 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Buffalo (average of $256). Flying from Washington, D.C. Dulles Intl Airport to Buffalo in December is currently the most expensive (average of $337). 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
Williamsville
Orchard Park
Batavia
Eden
Amherst
West Seneca

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dulles Intl to Buffalo

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to John F Kennedy Intl flights
Reagan-National to John F Kennedy Intl flights
Dulles Intl to LaGuardia flights
Dulles Intl to Newark flights
Dulles Intl to Rochester flights
Reagan-National to LaGuardia flights
Dulles Intl to Albany flights
Baltimore to Newark flights
Baltimore to LaGuardia flights
Baltimore to John F Kennedy Intl flights
Reagan-National to Newark flights
Reagan-National to Albany flights
Reagan-National to Buffalo flights
Reagan-National to Rochester flights
Baltimore to Buffalo flights
Dulles Intl to Syracuse flights
Baltimore to Albany flights
Baltimore to Syracuse flights
Reagan-National to Syracuse flights
Dulles Intl to White Plains flights
Baltimore to Rochester flights
Reagan-National to White Plains flights
Reagan-National to Saranac Lake flights
Dulles Intl to Islip flights
Dulles Intl to Ithaca flights
Baltimore to Islip flights
Baltimore to White Plains flights
Dulles Intl to Plattsburgh flights
Baltimore to Ithaca flights
Dulles Intl to Stewart flights
Reagan-National to Ithaca flights
Reagan-National to Islip flights
Baltimore to Stewart flights
Dulles Intl to Saranac Lake flights
Dulles Intl to Elmira flights
Reagan-National to Rutland flights
Dulles Intl to Binghamton flights
Baltimore to Elmira flights
Dulles Intl to Watertown flights
Reagan-National to Elmira flights
Reagan-National to Watertown flights
Baltimore to Binghamton flights
Reagan-National to Binghamton flights
Dulles Intl to Rutland flights
Baltimore to Watertown flights
Baltimore to Plattsburgh flights
Baltimore to Niagara Falls flights
Baltimore to Rutland flights
Baltimore to Saranac Lake flights

Top airline flying from Dulles Intl to Buffalo

Discover the top airline that operate flights from Dulles Intl to Buffalo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$186Average$322FlexibilityNo cancel feeOn-time69%

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