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$80+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BUF
Apr 13 — Apr 201
Sun 4/13
Sun 4/20
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 39 days in advance, depart on a Tuesday or Wednesday 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 April 8, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$179
(United Airlines)

One-way from

$80
(Frontier)

Popular in

November

Cheapest in

January

Average price

$308

Good round-trip deal

$227 or less

Good one-way deal

$119 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. 7% potential increase in price ($26 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 April 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 April 8, 2025.

This United Airlines deal was found by Cheapflights users on 4/6. 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.
Thu 5/18:25 amIAD - BUF
Nonstop1h 20mUnited Airlines
Sat 5/36:00 amBUF - IAD
Nonstop1h 19mUnited Airlines
Deal found 4/6$179
This CheapOair deal was found by Cheapflights users on 4/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/245:25 pmIAD - BUF
1 stop15h 37mFrontier
Sun 4/278:17 pmBUF - IAD
1 stop12h 01mFrontier
Deal found 4/7$180
This Delta deal was found by Cheapflights users on 4/7. 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.
Tue 4/155:23 pmIAD - BUF
1 stop5h 37mDelta
Sat 4/197:00 amBUF - IAD
1 stop6h 01mDelta
Deal found 4/7$214
This American Airlines deal was found by Cheapflights users on 4/8. 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.
Tue 5/135:02 amIAD - BUF
1 stop6h 14mAmerican Airlines
Tue 5/203:50 pmBUF - IAD
2 stops8h 12mAmerican Airlines
Deal found 4/8$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 April 8, 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

Thu 5/1

8:25 am-9:45 am

Nonstop1h 20m

Buffalo

Sat 5/3

6:00 am-7:19 am

Nonstop1h 19m

$179

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Thu 4/24

5:25 pm-9:02 am

1 stop15h 37m

Buffalo

Sun 4/27

8:17 pm-8:18 am

1 stop12h 01m

$180

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Sat 5/24

8:33 pm-12:40 am

1 stop4h 07m

Buffalo

Sun 5/25

7:00 am-11:40 am

1 stop4h 40m

$199

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Tue 5/13

5:02 am-11:16 am

1 stop6h 14m

Buffalo

Tue 5/20

3:50 pm-12:02 am

2 stops8h 12m

$256

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Thu 5/8

9:14 am-4:57 pm

1 stop7h 43m

$80

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Sun 5/25

10:21 pm-11:46 pm

Nonstop1h 25m

$90

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Sun 5/25

6:00 am-12:10 pm

1 stop6h 10m

$100

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Tue 5/13

5:02 am-2:55 pm

2 stops9h 53m

$131

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Sun 7/6

11:58 am-10:56 am

2 stops22h 58m

$331

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Sun 7/13

9:00 pm-4:42 pm

2 stops43h 42m

$1,887

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/7

Compare providers for flights from Dulles Intl to Buffalo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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
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 April 4, 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 39 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 April 8, 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 19% 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 April 8, 2025.

The most flights from IAD to BUF are scheduled on a Monday (10 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Buffalo by month

Plan your trip to Buffalo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buffalo ranges from 2.5 - 4.0 inches per month. November is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Buffalo when rainfall is around 2.5 in.

Temperature in Buffalo by month

Plan your trip to Buffalo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buffalo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

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 April 8, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Buffalo, such as Delta, Qatar Airways and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,901 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

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
7,901 reviews
Delta
8.0
Very good
7,901 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Qatar Airways
7.4
Good
3,544 reviews
Delta
8.0
Very good
7,901 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

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
8,629 reviews
Delta
8.0
Very good
7,901 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

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
7,901 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Frontier
6.0
Okay
3,277 reviews
Delta
8.0
Very good
7,901 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

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 $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. Search Cheapflights for deals from Frontier and Delta - these airlines can fly you to your destination from $180 and $199, respectively. You may be able to fly from Washington, D.C. Dulles Intl Airport to Buffalo for 45% 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?

    $80 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 $90 and $100, 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: Copa Airlines (84%), Brussels Airlines (83%), Lufthansa (82%).

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

    On average you can expect to pay $214 for a flight from Washington, D.C. Dulles Intl Airport to Buffalo. The cheapest flight overall is $78 while the most popular route, (Washington, D.C. Dulles Intl - Buffalo) is currently priced at $179.

  • 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
West Seneca
Williamsville
Amherst
Batavia
Orchard Park
Cheektowaga

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.
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Baltimore to Plattsburgh flights
Dulles Intl to Elmira flights
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Reagan-National to Stewart flights
Dulles Intl to Saranac Lake flights
Dulles Intl to Rutland flights
Dulles Intl to Binghamton flights
Baltimore to Saranac Lake flights
Baltimore to Rutland flights
Baltimore to Watertown flights
Baltimore to Binghamton flights
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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 April 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$185Average$330FlexibilityNo cancel feeOn-time69%

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