$115 Cheap Flights from Buffalo (BUF) to Washington (IAD)

View $115 flight on Wed, Jul 8, 2026Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Washington Dulles Intl. Airport (IAD)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Buffalo to Washington (BUF-IAD)

Prices were available within the past 7 days and start at $115 for one-way flights and $230 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Jul 8 - Wed, Jul 15
BUF
Buffalo
IAD
Washington
$230 Roundtrip, found 2 days ago
$230
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Jul 8 from Buffalo to Washington, returning Wed, Jul 15, priced at $230 found 2 days ago
United
Fri, Aug 7 - Sun, Aug 9
BUF
Buffalo
IAD
Washington
$239 Roundtrip, found 7 hours ago
$239
Roundtrip
found 7 hours ago
Select United flight, departing Fri, Aug 7 from Buffalo to Washington, returning Sun, Aug 9, priced at $239 found 7 hours ago
Frontier Airlines
Tue, Aug 11 - Wed, Sep 2
BUF
Buffalo
IAD
Washington
$240 Roundtrip, found 4 days ago
$240
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Tue, Aug 11 from Buffalo to Washington, returning Wed, Sep 2, priced at $240 found 4 days ago
Frontier Airlines
Wed, Jul 8 - Sat, Jul 11
BUF
Buffalo
IAD
Washington
$244 Roundtrip, found 22 hours ago
$244
Roundtrip
found 22 hours ago
Select Frontier Airlines flight, departing Wed, Jul 8 from Buffalo to Washington, returning Sat, Jul 11, priced at $244 found 22 hours ago
United
Tue, Jun 23 - Sun, Jul 19
BUF
Buffalo
IAD
Washington
$247 Roundtrip, just found
$247
Roundtrip
just found
Select United flight, departing Tue, Jun 23 from Buffalo to Washington, returning Sun, Jul 19, priced at $247 just found
United
Fri, Jul 10 - Sun, Jul 12
BUF
Buffalo
IAD
Washington
$248 Roundtrip, found 3 days ago
$248
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jul 10 from Buffalo to Washington, returning Sun, Jul 12, priced at $248 found 3 days ago
Frontier Airlines
Mon, Jul 20 - Wed, Jul 22
BUF
Buffalo
IAD
Washington
$249 Roundtrip, found 21 hours ago
$249
Roundtrip
found 21 hours ago
Select Frontier Airlines flight, departing Mon, Jul 20 from Buffalo to Washington, returning Wed, Jul 22, priced at $249 found 21 hours ago
Frontier Airlines
Tue, Jul 7 - Fri, Jul 10
BUF
Buffalo
IAD
Washington
$250 Roundtrip, found 11 hours ago
$250
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Tue, Jul 7 from Buffalo to Washington, returning Fri, Jul 10, priced at $250 found 11 hours ago
American Airlines
Fri, Aug 7 - Sun, Aug 9
BUF
Buffalo
IAD
Washington
$259 Roundtrip, found 7 hours ago
$259
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Aug 7 from Buffalo to Washington, returning Sun, Aug 9, priced at $259 found 7 hours ago
Delta
Fri, Aug 7 - Sun, Aug 9
BUF
Buffalo
IAD
Washington
$259 Roundtrip, found 7 hours ago
$259
Roundtrip
found 7 hours ago
Select Delta flight, departing Fri, Aug 7 from Buffalo to Washington, returning Sun, Aug 9, priced at $259 found 7 hours ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $269
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $269

What you need to know for your flight from Buffalo Niagara Intl. to Washington Dulles Intl.

Buffalo (BUF) to Washington (IAD) at a glance

Travel between Buffalo (BUF) and Washington (IAD) with a selection of airlines on this convenient domestic route. You can compare daily fares from both full-service and budget carriers to find the best flight from Buffalo that suits your itinerary and budget. Whether you're seeking a cheap ticket from Buffalo or looking for a specific travel schedule, you'll discover numerous options to explore the iconic sights and vibrant neighborhoods of Washington.

  • Fastest flight duration: around 1h 15m non-stop
  • Route distance: roughly 300 miles (485 km)
  • Flights per week: around 11 departures on average
  • Typical fares (one-way): economy tickets often range from $90–$345, depending on seasonality and how far ahead you book

Flights from Buffalo Niagara International Airport (BUF) to Washington Dulles International Airport (IAD)

Based on the latest traveler bookings, here are the top airlines favored for flights from Buffalo to Washington, featuring both non-stop and one-stop options. Popular layover spots include John F. Kennedy International Airport (JFK) and Tampa International Airport (TPA), each with approximately 2-hour layovers. This variety allows you to tailor your itinerary by balancing price, total travel time, and cabin class to find the option that best suits your needs.

  • United: As a comprehensive service airline, United provides non-stop flights with one-way ticket prices generally falling between $90 and $370. This carrier handles about 96% of the departures for this route, with a total travel duration of 1 hour and 15 minutes.
  • Frontier Airlines: This budget-friendly airline offers one-stop flights, with one-way fares usually ranging from $90 to $175. Frontier accounts for around 2% of the departures on this route, featuring an in-flight duration of 3 hours and 30 minutes, and a total journey time of approximately 5 hours when including layover.
  • Delta: Another full-service option, Delta provides one-stop service with one-way fares typically between $105 and $410. They represent about 2% of the departures on this route, featuring an in-flight time of 3 hours and 30 minutes and a total travel duration of roughly 5 hours, factoring in the layover.

Travelers flying from Buffalo to Washington can opt for upgraded service, with United offering first class and Delta providing both first class and premium economy class options.

Best time to fly from Buffalo (BUF) to Washington (IAD)

The most popular months for travelers flying from Buffalo to Washington are April, May, and July, when peak temperatures in Washington reach up to 78.4°F in July. If you prefer quieter travel, consider February, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 36.9°F. For better deals, May usually offers the lowest average one-way fare around $149. Flight availability peaks in April, May, July, September, and October, with approximately 12 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: May usually offers good deals with average one-way fare around $149, roughly 21% cheaper than the yearly average.
  • Another budget-friendly time to fly: March typically offers an average one-way fare of around $160.
  • Most flight options: April, May, July, September, and October have the highest number of flights from Buffalo to Washington, with approximately 12 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January33.6°F (0.9°C)Average9$164
February36.9°F (2.7°C)Moderately Low8$191
March44.4°F (6.9°C)Average11$160
April55.0°F (12.8°C)Moderately High12$168
May64.6°F (18.1°C)Moderately High12$149
June73.2°F (22.9°C)Average11$185
July78.4°F (25.8°C)Moderately High12$213
August76.3°F (24.6°C)Average11$198
September69.6°F (20.9°C)Average12$165
October58.5°F (14.7°C)Average12$196
November46.2°F (7.9°C)Moderately Low9$270
December39.2°F (4.0°C)Moderately Low11$212

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Buffalo (BUF) to Washington (IAD)

  • Buffalo to Washington (BUF-DCA): Ronald Reagan Washington National Airport (DCA) is located approximately 23 miles from Washington Dulles International Airport (IAD). One-way economy fares for this route generally fall between $90 and $340, influenced by the season and how far in advance you book. Flights are typically available as both non-stop and one-stop options. Major airlines operating on this route include American Airlines and JetBlue Airways, the latter being a low-cost carrier. Additionally, first-class service is offered for passengers seeking a premium experience.

How to find the best prices for flights from Buffalo (BUF) to Washington (IAD)

Getting some of the best deals on flights from Buffalo to Washington is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are typically found when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Morning departures between 5 a.m. and 12 p.m. tend to offer lower fares and are also the most popular. Additionally, flying on Wednesday generally provides cheaper prices, while Friday remains the most popular travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Washington Dulles International Airport from Buffalo Niagara International Airport

Washington welcomes travelers from Buffalo with a range of transport options based on price, convenience, and proximity. Washington city center is approximately a 40-minute drive (covering about 29 miles) from Washington Dulles International Airport, depending on traffic. Here's how to reach Washington efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Washington, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Washington Dulles International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Washington Dulles International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Washington Dulles International Airport, the Washington Dulles International Airport Metrorail Station, a metro station, is located about 0.2 miles away on foot.

Frequently asked questions

How much does a flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) cost?
You can find cheap one-way flights from $115 and cheap return flights from $230 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) with Expedia. One-way flights typically cost between $164 and $707, and return flights often range between $293 and $1090. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
May is the cheapest month to fly from Buffalo (BUF) to Washington, DC (IAD), with average round-trip fares around $259. This is about 16% lower than the average price throughout the year, as travel demand is typically lower in late spring. Other cheap months to fly from Buffalo to Washington, DC include January and August.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
United operates around 32 direct flights from BUF to IAD every week.
How do I find cheap flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best airline to fly with from Buffalo, NY (BUF) to Washington, DC (IAD) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. Delta offers the most daily flights from BUF to IAD, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
When flying from Buffalo, NY (BUF) to Washington, DC (IAD), May and August are the best months to consider. May offers an average return flight price of about $259, making it an economical choice. August is also popular, providing a good number of flights, which means you can find a schedule that fits your needs while enjoying pleasant weather in DC.*Prices based on flights available on Expedia in the last year.
How many flights per day from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You can find approximately 4 nonstop flights per day from Buffalo Niagara Intl. (BUF) to Washington Dulles Intl. (IAD). For more options, look at flights that include layovers.
What is the earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Buffalo Niagara International Airport (BUF) to Washington Dulles International Airport (IAD) typically departs at around 5:05 AM, operated by Southwest Airlines. This seasonal service is available in June, July, and August, making it a convenient option for early risers. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
For flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.), the most popular departure times are from 6am to 9am. This time window accounts for around 31% of total traffic. Airlines like Delta and United operate flights during this period. Many travelers prefer this timing as it allows them to arrive in Washington, DC with plenty of time to start their day.
How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Flying nonstop from BUF to IAD takes around 1 hour 30 minutes, with the route covering approximately 283 miles. Flights with a layover typically take 3 hours 20 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
First class seats are offered on the BUF to IAD route. First class cabins are available on:

  • Delta Air Lines
  • United Airlines
  • American Airlines

How do I earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington from Buffalo Niagara Intl. (BUF)?
When traveling from Buffalo Niagara Intl. (BUF) to Washington, you can fly into Ronald Reagan Washington National (DCA) and Washington Dulles Intl. (IAD). Some flights may connect through major hubs like Philadelphia Intl. (PHL), LaGuardia (LGA), Charlotte-Douglas Intl. (CLT) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) Fairfax County Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Washington Dulles Intl.
Roundtrip price
$230
Distance
283 mi
Average flight time
1 hour 20 mins

Book with confidence

Buffalo to Washington Flights

The cheapest times to fly from Buffalo to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Buffalo to Washington are during the month of July. You can find some of the cheapest flights from Buffalo to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Buffalo to Washington

Sunday is one of the best days to book for cheap flights from Buffalo to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Buffalo to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Buffalo to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $115 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Buffalo to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Buffalo to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Buffalo to Washington Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

Explore a world of travel with Expedia