BUF - IAD

$114 Find Cheap Flights from Buffalo to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to Dulles Intl departing on 7/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$239
Typical prices: $319-$239
United Airlines
Fri 7/3Sun 7/5
BUF - IAD • Non-stop
Cheapest one-way
$114
Typical prices: $197-$317
Frontier
Wed 7/8
BUF - IAD • 1 stop
Top airlines
United Airlines
Cheapest • from $239 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with United Airlines. Average duration is 1h 19m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Detroit (DTW)
Cheapest • Avg $198 (round-trip)
Detroit (DTW)
Shortest trip • 3h 32m (one-way)
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 13% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Buffalo to Dulles Intl (BUF-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buffalo to Dulles Intl

Fri, Jul 3 - Sun, Jul 5
United Airlines Logo
10:34 am - 11:50 am
BUF
-
IAD
1h 16mnonstop
United Airlines Logo
8:25 am - 9:51 am
IAD
-
BUF
1h 26mnonstop
$239United Airlines
Tue, Jul 21 - Sat, Jul 25
Frontier Logo
11:29 am - 4:40 pm
BUF
-
IAD
5h 11m
1 stop
Frontier Logo
1:21 pm - 9:07 pm
IAD
-
BUF
7h 46m
1 stop
$244Frontier
Wed, Jul 1 - Wed, Jul 15
Frontier Logo
2:50 pm - 11:17 pm
BUF
-
IAD
8h 27m
1 stop
Frontier Logo
11:11 am - 7:06 pm
IAD
-
BUF
7h 55m
1 stop
$246Frontier
Mon, Jun 22 - Mon, Jun 29
United Airlines Logo
7:52 pm - 9:15 pm
BUF
-
IAD
1h 23mnonstop
United Airlines Logo
10:26 pm - 11:59 pm
IAD
-
BUF
1h 33mnonstop
$248United Airlines
Mon, Jul 20 - Wed, Jul 22
Frontier Logo
7:57 pm - 12:47 pm
BUF
-
IAD
16h 50m
1 stop
Frontier Logo
7:49 am - 1:53 pm
IAD
-
BUF
6h 04m
1 stop
$249Frontier
Tue, Jun 23 - Tue, Jun 30
United Airlines Logo
7:52 pm - 9:15 pm
BUF
-
IAD
1h 23mnonstop
United Airlines Logo
10:26 pm - 11:59 pm
IAD
-
BUF
1h 33mnonstop
$250United Airlines
Thu, Jun 18 - Sat, Jun 20
United Airlines Logo
3:00 pm - 4:23 pm
BUF
-
IAD
1h 23mnonstop
United Airlines Logo
5:30 pm - 7:02 pm
IAD
-
BUF
1h 32mnonstop
$252United Airlines
Fri, Jun 12 - Mon, Jun 15
United Airlines Logo
7:52 pm - 9:15 pm
BUF
-
IAD
1h 23mnonstop
United Airlines Logo
10:26 pm - 11:58 pm
IAD
-
BUF
1h 32mnonstop
$254United Airlines
Tue, Jun 23 - Mon, Jun 29
Frontier Logo
9:02 pm - 12:53 pm
BUF
-
IAD
15h 51m
1 stop
Frontier Logo
7:30 am - 1:55 pm
IAD
-
BUF
6h 25m
1 stop
$256Frontier
Thu, Sep 17 - Mon, Sep 28
Delta Logo
7:44 pm - 11:14 pm
BUF
-
IAD
3h 30m
1 stop
Delta Logo
6:15 pm - 12:12 am
IAD
-
BUF
5h 57m
1 stop
$259Delta
Booking Insights

KAYAK's insights & trends for Buffalo to Dulles Intl flights

Get data-powered insights and trends into flights from Buffalo to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Buffalo to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Buffalo to Washington, D.C. Dulles Intl Airport departing in July.

What’s the cheapest day of the week to fly from Buffalo to Washington Dulles Airport?

The average price of all round-trip flights from Buffalo to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

When flying from Buffalo to Washington Dulles Airport, you should consider leaving on a Friday and avoid Tuesdays if you are looking for the best rates. For your return to Buffalo, you’ll find the best rates on Mondays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Buffalo to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Buffalo to Washington, D.C. Dulles Intl Airport is March, where tickets cost $253 (return) on average. On the other hand, the most expensive months are April and October, where the average cost of round-trip tickets is $394 and $308 respectively.

Can I save money by flying with a layover from Buffalo to Washington, D.C. Dulles Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $389, prices are generally cheapest when you fly direct.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$114
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Buffalo to Washington Dulles Airport

When to book flights from Buffalo to Dulles Intl

Are your dates flexible? Find out the best times to travel from Buffalo to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Buffalo to Washington Dulles Airport flights

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

    In the last 7 days, the lowest price for a flight from Buffalo to Washington, D.C. Dulles Intl Airport was $114 for a one-way ticket and $239 for a round-trip.

  • Do I need a passport to fly between Buffalo and Washington Dulles Airport?

    A passport is not required to fly from Buffalo to Washington Dulles Airport.

  • Which airports will I be using when flying from Buffalo to Washington Dulles Airport?

    When flying out of Buffalo you will be using Buffalo. You will be landing at Washington Dulles Airport, also known as Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Buffalo to Washington Dulles Airport?

    American Airlines, JetBlue, Delta, Lufthansa, and Air Canada offer inflight Wi-Fi service on the Buffalo to Washington Dulles Airport flight route.

  • Which aircraft models fly most regularly from Buffalo to Washington Dulles Airport?

    The Embraer ERJ-135 / ERJ-140 / ERJ-145 is the aircraft model that flies most regularly on the Buffalo to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Buffalo to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Buffalo and Washington Dulles Airport.

  • On which days can I fly direct from Buffalo to Washington Dulles Airport?

    There are nonstop flights from Buffalo to Washington Dulles Airport on a daily basis.

  • How does KAYAK find such low prices on flights from Buffalo to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Buffalo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Buffalo with another airline. Booking your flights between Buffalo and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Buffalo to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $217 or less one-way and $376 or less round-trip.

Prefer to fly direct from Buffalo to Washington Dulles Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Buffalo to Washington, D.C. Dulles Intl.
Find which airlines fly direct from Buffalo Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Buffalo to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Buffalo

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top airline flying from Buffalo to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9766 reviews
8.1Crew
7.7Boarding
7.1Entertainment
6.6Food
7.3Comfort
Airline reviews

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

2.0 MediocreChris, May 2026
AUS - IAD
Read more United Airlines reviews

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

My bags were misplaced!!! Im in a foreign country with no bags

Everything you need to know for your flight from Buffalo to Dulles Intl

Information on your arrival and departure airports

Buffalo (BUF)
Dulles Intl (IAD)