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Dulles Intl

$89+ Cheap flights from Buffalo (BUF) to Dulles Intl (IAD)

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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — IAD
Mar 4 — Mar 111
Tue 3/4
Tue 3/11
1 adult, Economy
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The best prices from Buffalo to Washington, D.C. Dulles Intl are usually found in January or December, booked 75 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Buffalo to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Dulles Intl (IAD). 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 February 27, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$198
(United Airlines)

One-way from

$89
(Delta)

Popular in

April

Cheapest in

January

Average price

$291

Good round-trip deal

$380 or less

Good one-way deal

$171 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. 8% potential increase in price ($26 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 February 2025
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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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Find flight deals from Buffalo to Dulles Intl

Cheapest flights from Buffalo to Dulles Intl
Explore the most affordable flight options available from Buffalo to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 27, 2025.

This United Airlines deal was found by Cheapflights users on 2/27. 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.
Mon 3/247:40 pmBUF - IAD
Nonstop1h 20mUnited Airlines
Wed 3/268:35 amIAD - BUF
1 stop3h 42mUnited Airlines
Deal found 2/27$198
This Delta deal was found by Cheapflights users on 2/27. 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.
Mon 3/175:48 pmBUF - IAD
1 stop5h 12mDelta
Thu 3/207:59 pmIAD - BUF
1 stop4h 21mDelta
Deal found 2/27$202
This Mytrip deal was found by Cheapflights users on 2/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/286:43 pmBUF - IAD
1 stop19h 31mFrontier
Wed 4/25:54 pmIAD - BUF
1 stop16h 30mFrontier
Deal found 2/26$246
This American Airlines deal was found by Cheapflights users on 2/26. 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.
Sat 3/296:00 amBUF - IAD
1 stop7h 22mAmerican Airlines
Tue 4/16:27 amIAD - BUF
2 stops9h 00mAmerican Airlines
Deal found 2/26$264

Find flights from Buffalo to Dulles Intl within your budget

Customize your flight search to find flights from Buffalo to Dulles Intl 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 February 27, 2025.

Fly from

Buffalo

Fly to

Dulles Intl

Route

Depart

Return

Price

BuffaloWashington, D.C.

BUF - IAD

BUFIAD

Buffalo

Mon 3/24

7:40 pm-9:00 pm

Nonstop1h 20m

Washington, D.C. Dulles Intl

Wed 3/26

8:35 am-12:17 pm

1 stop3h 42m

$198

BuffaloWashington, D.C.

BUF - IAD

BUFIAD

Buffalo

Mon 3/17

5:48 pm-11:00 pm

1 stop5h 12m

Washington, D.C. Dulles Intl

Thu 3/20

7:59 pm-12:20 am

1 stop4h 21m

$202

BuffaloWashington, D.C.

BUF - IAD

BUFIAD

Buffalo

Fri 3/28

5:09 pm-4:54 pm

1 stop23h 45m

Washington, D.C. Dulles Intl

Sat 3/29

10:25 pm-5:44 pm

1 stop19h 19m

$244

BuffaloWashington, D.C.

BUF - IAD

BUFIAD

Buffalo

Sat 3/29

6:00 am-1:22 pm

1 stop7h 22m

Washington, D.C. Dulles Intl

Tue 4/1

6:27 am-3:27 pm

2 stops9h 00m

$264

BuffaloWashington, D.C.

BUF - IAD

BUFIAD

Buffalo

Mon 3/31

5:48 pm-11:00 pm

1 stop5h 12m

$89

BuffaloWashington, D.C.

BUF - IAD

BUFIAD

Buffalo

Thu 5/29

6:00 am-7:16 am

Nonstop1h 16m

$90

BuffaloWashington, D.C.

BUF - IAD

BUFIAD

Buffalo

Thu 3/27

2:41 pm-7:46 pm

1 stop5h 05m

$122

BuffaloWashington, D.C.

BUF - IAD

BUFIAD

Buffalo

Sat 5/24

7:11 pm-12:03 am

1 stop4h 52m

$126

BuffaloWashington, D.C.

BUF - IAD

BUFIAD

Buffalo

Thu 5/29

11:40 am-6:01 pm

2 stops30h 21m

$219

BuffaloWashington, D.C.

BUF - IAD

BUFIAD

Buffalo

Tue 7/29

5:39 pm-8:40 am

2 stops39h 01m

$1,886

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/27

Compare providers for flights from Buffalo to Dulles Intl

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 Buffalo to Dulles Intl in February.
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 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
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.

Travel insights for flights from Buffalo to Dulles Intl

Get recent, data-driven insights about flights from Buffalo to Dulles Intl including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Dulles Intl. Price data was last updated on February 25, 2025.

Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Buffalo to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Buffalo to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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?

Find hourly flight availability from Buffalo to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 27, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 56% 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?

Use this chart to determine the cheapest time to fly round-trip from Buffalo to Dulles Intl. Price data was last updated on February 23, 2025.

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

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

Explore weekly flight availability from Buffalo to Dulles Intl. 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 February 27, 2025.

The most flights from BUF to IAD are scheduled on a Monday (9 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Dulles Intl by month

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

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

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

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated February 27, 2025.
Get a feel of what it's like to fly with Delta, Qatar Airways and United Airlines from Buffalo to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,138 reviews

Comfort

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Delta
8.0
Very good
8,138 reviews
Delta
8.0
Very good
8,138 reviews

Comfort

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Qatar Airways
7.4
Good
3,584 reviews
Delta
8.0
Very good
8,138 reviews

Comfort

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

United Airlines
7.4
Good
8,724 reviews
Delta
8.0
Very good
8,138 reviews

Comfort

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,138 reviews

Comfort

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Frontier
6.0
Okay
3,339 reviews
Delta
8.0
Very good
8,138 reviews

Comfort

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Dulles Intl. 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 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 8 outbound flights to Washington, D.C. Dulles Intl per day from 2 airlines. Buffalo is conveniently located just 8.3 mi from Buffalo’s city center.

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

    According to our current data, United Airlines ($198), Frontier ($199), and Delta ($202) offers the cheapest pricing from Buffalo to Washington, D.C. Dulles Intl Airport. United Airlines is priced at 30% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $89. However, be on the lookout for offers from United Airlines and Frontier, as they are both options that can get you from Buffalo to Washington, D.C. Dulles Intl Airport for a low price.

  • 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: Avianca (70%), CommutAir (65%), Copa Airlines( 63%).

  • 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 $618, our data indicates the cheapest price to be $119. The most popular route (Buffalo - Washington, D.C. Dulles Intl), is priced around $177.

  • 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, August is the cheapest month in which you can book a flight from Buffalo to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Buffalo to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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?

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Alternative routes for Buffalo to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Elmira to Reagan-National flights
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Top 2 airlines flying from Buffalo to Dulles Intl

Discover the top 2 airlines that operate flights from Buffalo to Dulles Intl. 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 February 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$197Average$291FlexibilityNo cancel feeOn-time69%
DeltaCheapest$199Average$223FlexibilityNo cancel feeOn-timeN/A
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