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$81+ 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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BUF
May 4 — May 111
Sun 5/4
Sun 5/11
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 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$180
(Frontier)

One-way from

$81
(Frontier)

Popular in

November

Cheapest in

January

Average price

$308

Good round-trip deal

$239 or less

Good one-way deal

$137 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 ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 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 29, 2025.

This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/159:14 amIAD - BUF
1 stop7h 43mFrontier
Fri 5/169:51 amBUF - IAD
1 stop6h 45mFrontier
Deal found 4/28$180
This United Airlines deal was found by Cheapflights users on 4/28. 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 7/1710:20 pmIAD - BUF
Nonstop1h 24mUnited Airlines
Sun 7/206:00 amBUF - IAD
Nonstop1h 15mUnited Airlines
Deal found 4/28$190
This Delta deal was found by Cheapflights users on 4/28. 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.
Fri 6/61:00 pmIAD - BUF
1 stop4h 09mDelta
Tue 6/107:33 pmBUF - IAD
1 stop3h 22mDelta
Deal found 4/28$199
This American Airlines deal was found by Cheapflights users on 4/29. 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 5/245:26 pmIAD - BUF
1 stop6h 48mAmerican Airlines
Wed 5/286:01 amBUF - IAD
2 stops10h 55mAmerican Airlines
Deal found 4/29$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 29, 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 5/15

9:14 am-4:57 pm

1 stop7h 43m

Buffalo

Fri 5/16

9:51 am-4:36 pm

1 stop6h 45m

$180

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Thu 7/17

10:20 pm-11:44 pm

Nonstop1h 24m

Buffalo

Sun 7/20

6:00 am-7:15 am

Nonstop1h 15m

$190

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Fri 6/6

1:00 pm-5:09 pm

1 stop4h 09m

Buffalo

Tue 6/10

7:33 pm-10:55 pm

1 stop3h 22m

$199

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Sat 5/24

5:26 pm-12:14 am

1 stop6h 48m

Buffalo

Wed 5/28

6:01 am-4:56 pm

2 stops10h 55m

$256

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Wed 6/18

12:40 pm-11:12 am

1 stop22h 32m

Buffalo

Sun 6/22

11:41 am-2:23 pm

3 stops26h 42m

$552

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Sat 7/5

6:10 am-12:11 pm

1 stop6h 01m

$81

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Wed 5/28

8:30 pm-12:40 am

1 stop4h 10m

$100

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Wed 5/28

10:20 pm-11:44 pm

Nonstop1h 24m

$120

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Wed 5/28

5:02 am-2:55 pm

2 stops9h 53m

$131

Washington, D.C.Buffalo

IAD - BUF

IADBUF

Washington, D.C. Dulles Intl

Sat 6/7

11:33 am-10:44 am

2 stops23h 11m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 11 results
1
2

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*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
PricelinePrice Accuracy2 starsTrust 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 eDreams the most. eDreams 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 25, 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 29, 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.

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 29, 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
7,929 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

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
3,563 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

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
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

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
7,929 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

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
3,287 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

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 4 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 $180, Frontier will fly you from Washington, D.C. Dulles Intl Airport to Buffalo and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $190 and $199, respectively. You may be able to fly from Washington, D.C. Dulles Intl Airport to Buffalo for 44% 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?

    $81 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $100 and $120, 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 (91%), Brussels Airlines (84%), Copa Airlines (82%).

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

    On average you can expect to pay $216 for a flight from Washington, D.C. Dulles Intl Airport to Buffalo. The cheapest flight overall is $128 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

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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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Reagan-National to Ithaca flights
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Reagan-National to Rutland flights
Reagan-National to Watertown flights
Baltimore to Plattsburgh flights
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Dulles Intl to Binghamton flights
Baltimore to Niagara Falls flights
Reagan-National to Elmira flights
Dulles Intl to Rutland flights
Baltimore to Saranac Lake flights
Dulles Intl to Saranac Lake flights
Baltimore to Binghamton flights
Reagan-National to Stewart flights
Baltimore to Watertown flights
Dulles Intl to Elmira 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$186Average$327FlexibilityNo cancel feeOn-time69%

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