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IAD - BUF

Find cheap flights from Washington Dulles Airport to Buffalo from $89

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Buffalo departing on 7/16. 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
0 bags
Sat 5/25
Sat 6/1

Search hundreds of travel sites at once for deals on flights to Buffalo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Buffalo, 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 Washington, D.C. to Buffalo, as well as popular online travel agencies
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Dulles Intl to Buffalo (IAD-BUF)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Buffalo 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 and deals for you by selecting your travel dates.
Choose your dates
12:50 pm - 2:12 pmIAD-BUF
1h 22mnonstop
7:59 pm - 9:16 pmBUF-IAD
1h 17mnonstop
$178United Airlines
Find Deal
Tue, Jun 4 - Sat, Jun 8
8:20 am - 9:37 amIAD-BUF
1h 17mnonstop
7:48 pm - 9:06 pmBUF-IAD
1h 18mnonstop
$183United Airlines
Find Deal
Mon, Aug 19 - Wed, Aug 21
8:20 am - 9:37 amIAD-BUF
1h 17mnonstop
4:27 pm - 8:43 pmBUF-IAD
4h 16m1 stop
$193United Airlines
Find Deal
Mon, Aug 19 - Wed, Aug 21
5:02 am - 9:47 amIAD-BUF
4h 45m1 stop
6:00 am - 11:15 amBUF-IAD
5h 15m1 stop
$194American Airlines
Find Deal
Wed, May 29 - Fri, May 31
10:09 pm - 11:27 pmIAD-BUF
1h 18mnonstop
7:59 pm - 9:17 pmBUF-IAD
1h 18mnonstop
$198United Airlines
Find Deal
Wed, May 15 - Thu, May 16
8:25 am - 9:46 amIAD-BUF
1h 21mnonstop
6:15 am - 7:33 amBUF-IAD
1h 18mnonstop
$211United Airlines
Find Deal
Thu, May 16 - Fri, May 17
12:35 pm - 7:02 pmIAD-BUF
6h 27m1 stop
11:12 am - 5:27 pmBUF-IAD
6h 15m1 stop
$244Delta
Find Deal
Tue, Jun 4 - Sat, Jun 8
5:00 am - 9:23 amIAD-BUF
4h 23m1 stop
7:20 am - 12:43 pmBUF-IAD
5h 23m1 stop
$279American Airlines
Find Deal
Wed, Jun 5 - Thu, Jun 6
6:00 am - 9:45 amIAD-BUF
3h 45m1 stop
6:12 pm - 10:52 pmBUF-IAD
4h 40m1 stop
$316Delta
Find Deal
Wed, May 15 - Wed, May 22
11:32 am - 10:41 amIAD-BUF
23h 09m1 stop
2:00 pm - 10:17 amBUF-IAD
20h 17m1 stop
$387Sun Country Air
Find Deal
Tue, Jul 23 - Fri, Jul 26

Flights from Dulles Intl to Buffalo - Travel Insights & Trends

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

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

The average price of all flights from Washington, D.C. Dulles Intl Airport to Buffalo clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Buffalo on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Washington Dulles Airport to Buffalo. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. Dulles Intl Airport to Buffalo, 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 Washington, D.C. Dulles Intl Airport to Buffalo is November, where tickets cost $264 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $379 and $349 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. Dulles Intl Airport to Buffalo, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Buffalo, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 41 days before departure.

Which airlines provide the cheapest flights from Washington Dulles Airport to Buffalo?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on United Airlines ($89) and American Airlines ($98). The cheapest round-trip tickets were found on United Airlines ($178) and American Airlines ($194).

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and Buffalo?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Washington, D.C. Dulles Intl Airport to Buffalo.
There is just one airline that flies from Washington, D.C. Dulles Intl Airport to Buffalo direct and that is United Airlines. The best one-way deal found from United Airlines for the route is $189.

How many flights are there between Washington, D.C. Dulles Intl Airport and Buffalo per day?

Each day, there are between 5 and 7 nonstop flights that take off from Washington, D.C. Dulles Intl Airport and land in Buffalo, with an average flight time of 1h 20m. The most common departure time is 12:00 pm and most flights take off in the morning. Each week, there are 42 flights. The most frequent day of departure is Tuesday, when 17% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Washington, D.C. Dulles Intl Airport and Buffalo?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Washington Dulles Airport to Buffalo take?

Direct flights take on average 1h 18m to travel the 284 miles between Washington Dulles Airport and Buffalo.

What’s the earliest departure time from Washington Dulles Airport to Buffalo?

Early birds can take the earliest flight from Washington, D.C. Dulles Intl Airport at 8:20 am and will be landing in Buffalo at 9:41 am.

What’s the latest departure time from Washington Dulles Airport to Buffalo?

If you prefer to fly at night, the latest flight from Washington, D.C. Dulles Intl Airport to Buffalo jets off at 10:09 pm and lands at 11:27 pm.

Good to know

Low season

January

High season

July

Cheapest flight

$89
Best time to beat the crowds but there is an average 35% increase in price.
Most popular time to fly with an average 4% increase in price.
Flight from Washington Dulles Airport to Buffalo

When to book flights from Dulles Intl to Buffalo

Are your dates flexible? Find out the best times to travel from Dulles Intl to Buffalo 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 Washington Dulles Airport to Buffalo flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Buffalo was $89 for a one-way ticket and $178 for a round-trip.

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

    No

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

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

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

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Washington Dulles Airport to Buffalo flight route.

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

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

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

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

  • Which is the best airline for flights from Washington, D.C. to Buffalo, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Buffalo are Delta and United Airlines. With an average price for the route of $243 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $358 and an overall rating of 7.4.

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

    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 Washington Dulles Airport to Buffalo.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buffalo from Washington Dulles Airport 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 Washington Dulles Airport to Buffalo?

    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 Buffalo with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and BUF 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 Washington Dulles Airport to Buffalo?

    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 Buffalo from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from IAD to Buffalo

  • Looking for a cheap flight? 25% of our users found flights on this route for $128 or less one-way and $271 or less round-trip.

Prefer to fly non-stop from Washington Dulles Airport to Buffalo?

Find which airlines fly direct from Dulles Intl to Buffalo, which days they fly and book direct flights.

Nonstop departures

Washington, D.C. Dulles Intl to Buffalo

Monday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

Tuesday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

Wednesday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

Thursday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

Friday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

Saturday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

Sunday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

See more direct flights

Nonstop returns

Buffalo to Washington, D.C. Dulles Intl

Monday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

Tuesday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

Wednesday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

Thursday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

Friday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

Saturday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

Sunday

Avianca, Brussels Airlines, Copa Airlines, +2 more

Avianca, Brussels Airlines, +3 more

See more direct flights
See more direct flights

Top 3 airlines serving from Dulles Intl to Buffalo

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Buffalo. 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 Dulles Intl to Buffalo? 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.
8.0
DeltaOverall score based on 10975 reviews
8.2boarding
8.6crew
7.4food
7.9comfort
8.0entertainment
Airline reviews

It was a crowded flight. They did the best they could.

6.0 GoodNetty, Apr 2024SYR - JFK
Read more about Delta reviews

It was a crowded flight. They did the best they could.

Boarding was great. The flight landed early. It took the crew over an hour and a half to bring out drinks. I paid to upgrade my seat to Comfort+ only to be near a crying/screaming baby who was seldom quiet. Noise-cancelling earbuds didn’t even help. Waste of money to upgrade.

Boarding was a sh!t show. JFK BOARDING was awful. The agent called three sections at a time Clogging the area then yelling at people to not block the walk way. How are you going to call delta one , premium select and comfort plus at once and the yell at highest paying passengers. Need to do a lot better and the flight attendants in the galley need to understand that their voices travel. They were talking about others and everyone in the cabin heard them

The main person that was coordinating everything was a short white/light skin Spanish man and he was very rude. It honestly made me feel like it was everyone’s First day at work. His announcements were very not reasonable and they did not make sense. The stewardess on the flight that made the announcements she didn’t even know what she was talking about she sounded inebriated. There were no snacks or drinks on our flight there wasn’t even much turbulence. This flight was not enjoyable nor was it what a Delta flight should be and just this past week I flew with Delta 3 times.

Horrible. First delta flight was delayed. I ran to my connecting flight and arrived to the gate 13 mins before departure. I told the gate agent “I’m here”, she told me flight was closed while giving my already confirmed seat to an stand by passenger. I said again “madam, I’m here with my confirmed seat” and she said “no you’re not here@ and gave two stand by people a boarding pass and let them board. I asked “madam, why do you do that?”, and she repeated “you’re not here”. That was very rude. I’m disappointed of delta. It used to have a good customer service. Things have changed, but not for good.

full flihgt but crew and passengers all helped eachother we landed early! however we then had to wait 40 minutes on the tarmac to get into the gate there were people trying get connecting flights, assume its an airport issue but still frustrating

We flew early evening on New Year's Eve. Our plane was less than half full... Great for the passenger experience -- not so much for the airline lol. Comfortable, spacious, smooth flight -- and early arrival!

The crew was horrible. Cleo was the most unwelcoming flight attendant I’ve ever had.

I wouldn't say I liked being forced to check my small roller bag at the gate; too many people had bags and were in a higher boarding group.

Do not get fooled by the term “Delta One” flat bed! The seats were super narrow. The ottoman for the feet was so narrow that when you recline the seat in flat bed position, you can only fit one foot in the 8” width space. There was only 1 flight attendant for First Class. The breakfast took 2 hours to get served. Instead of offering French Toast, the served bread pudding. The champagne with orange juice or Mimosa tasted terrible. Almost all the movies offered were ridiculously old. For a long flight from San Francisco to NY, it was frustrating! I DO NOT RECOMMEND this flight!!!

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

Wasn’t very crowded. Seamless processes. No issues traveling with two little kids.

My interaction with the flight attendent Eve was horrible. I was seated in 3F and was blown away watching her repeatedly skip me as she took other customer orders for lunch...she took the customer next to me but skipped me, then took everyone's order around me (in front of and behind me) . After she had taken every customer's orders to include those behind me, she came to me and said we are out of everything except one last item. I was mortified, in that, I am a 1k flyer, had pre-ordered AND as an African American could only assume why she repeatedly skipped me...mortified. no words

The Flight was good, pilot seemed very skillful. My wheel chair sister who could barely walk was allotted the second last seat in the aircraft, with great difficulty she managed to reach on her seat, as she required attendance we were given separate seat, even on request no one cared, so much so there were single passengers who were given twin seats. May not be taken as complaint but a reminder to the checkin staff to keep in mind in future the allottment of wheel chair passengers seats.

Almost 2 hour delay in boarding with all standing ready to board at original time. No explanation given.

787-9 Transcon from IAD-LAX FYI no meals in premium plus, not considered Premium - seats are wonderful https://www.united.com/ual/en/us/fly/travel/inflight/premium-services.html Horrible handling of delayed flight

For each flight from Key West to Fort Lauderdale to Newark to Buffalo there were at least three delays at each leg of our trip. We were due to arrive home @11:37 but finally arrived @2:25 AM costing us an extra day at the car park. Seats are uncomfortable resulting in need to seek chiropractic care for backache. Upon deplaning my husband discovered someone had taken his clearly identified carryon from the overhead bin. I will not plan on flying again soon and not on United.

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

Delayed abs delayed Gate crew giving poor info - we are definitely leaving at —- Ultimately to cancel flight after 4+ hours of delays Just cancel it earlier

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Everything was on time; the flight attendants and the gate personnel were very pleasant and helpful.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Perfect flight. On time departure and early arrival. Smooth flight.

Awful! The flight was delayed and we sat on the plane in DCA for an hour because fuel was out in the wrong part of the plane and would not be accessible during flight. So the plane had to be refueled in correct tank. They also allowed someone to get off of the plane. This delayed my six hour flight by an hour and made me miss my connecting flight. I ran to new gate and American Airlines agents new about the delay and even knew that I was trying to make the connection. They knew thru communication with my friend while in flight that I was in the airport and running to the new gate and they still closed the gate and refused to let me on the new flight despite plane still being at the gate. It was horrible and I had to be rebooked on a flight for 24 hours later. This has been a nightmare and if American Airlines can cause customers to be delayed and then have zero empathy as having an on time flight was more important to them than helping a customer who was delayed by no fault of her own, then it's seems that it's not a company that I want to continue to give my loyalty to. I'm so disgusted.

Help was available but timing was bad in my case

It was a horrible snow storm, but updates were inconsistent and the app never displayed a remotely accurate time or gate until very close to boarding.

Book cheap flights from Washington, D.C. to Buffalo

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Buffalo found on KAYAK in the last 72 hours.
7/16Tue
nonstopUnited Airlines
1h 21mIAD-BUF
$89
9/1Sun
nonstopUnited Airlines
1h 17mIAD-BUF
$96
10/9Wed
1 stopAmerican Airlines
5h 50mIAD-BUF
$98
10/9Wed
2 stopsAmerican Airlines
9h 08mIAD-BUF
$103
6/15Sat
1 stopDelta
4h 48mIAD-BUF
$117
6/12Wed
nonstopUnited Airlines
1h 21mIAD-BUF
$119
5/16Thu
nonstopUnited Airlines
1h 21mIAD-BUF
$120
9/2Mon
1 stopAmerican Airlines
6h 28mIAD-BUF
$125
5/28Tue
1 stopDelta
4h 48mIAD-BUF
$126
5/13Mon
1 stopDelta
6h 57mIAD-BUF
$164

Search by stops

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Last minute flights from Dulles Intl to Buffalo

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Buffalo that are departing in the next 10 days.
4/30Tue
nonstopUnited Airlines
1h 18mIAD-BUF
5/2Thu
nonstopUnited Airlines
1h 18mBUF-IAD
$484
4/30Tue
multi-stopAmerican Airlines
5h 37mIAD-BUF
5/2Thu
multi-stopAmerican Airlines
5h 24mBUF-IAD
$489
4/30Tue
multi-stopUnited Airlines
5h 28mIAD-BUF
5/2Thu
nonstopUnited Airlines
1h 18mBUF-IAD
$493
4/30Tue
multi-stopAmerican Airlines
5h 37mIAD-BUF
5/2Thu
multi-stopAmerican Airlines
8h 56mBUF-IAD
$494
4/26Fri
nonstopUnited Airlines
1h 21mIAD-BUF
4/28Sun
nonstopUnited Airlines
1h 18mBUF-IAD
$499
4/26Fri
nonstopUnited Airlines
1h 21mIAD-BUF
4/28Sun
multi-stopUnited Airlines
5h 44mBUF-IAD
$508
4/26Fri
multi-stopAmerican Airlines
4h 40mIAD-BUF
4/28Sun
multi-stopAmerican Airlines
5h 24mBUF-IAD
$515
4/28Sun
multi-stopAmerican Airlines
4h 40mIAD-BUF
4/30Tue
multi-stopAmerican Airlines
7h 34mBUF-IAD
$520
4/30Tue
multi-stopAmerican Airlines
9h 25mIAD-BUF
5/2Thu
multi-stopAmerican Airlines
8h 56mBUF-IAD
$539

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Washington Dulles Airport - Buffalo Flights

Departure:

Washington Dulles Airport (IAD)United States

Destination:

Buffalo (BUF)United States

Return flight deals:

Buffalo - Washington Dulles Airport

Cabin classes:

$571
$478
$393
$185