IAD - BUF

$80 Find Cheap Flights from Washington Dulles Airport to Buffalo

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 7/5. 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

KAYAK searches 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
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Flights Deals

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.

Recent round-trip flight deals from Dulles Intl to Buffalo

KAYAK's recommended round-trip deals from the most popular airlines that fly from Dulles Intl to Buffalo.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
1:32 pm - 8:52 amIAD-BUF
19h 20m1 stop
Frontier Logo
1:14 pm - 11:19 pmBUF-IAD
10h 05m1 stop
$172Frontier
Find Deal
Sat, Aug 9 - Sat, Aug 16
United Airlines Logo
12:45 pm - 2:09 pmIAD-BUF
1h 24mnonstop
United Airlines Logo
6:15 am - 7:31 amBUF-IAD
1h 16mnonstop
$179United Airlines
Find Deal
Wed, May 28 - Tue, Jun 3
Frontier Logo
9:14 am - 4:57 pmIAD-BUF
7h 43m1 stop
Frontier Logo
9:51 am - 4:36 pmBUF-IAD
6h 45m1 stop
$180Frontier
Find Deal
Thu, May 15 - Mon, May 19
Frontier Logo
5:26 pm - 9:01 amIAD-BUF
15h 35m1 stop
Frontier Logo
4:59 pm - 8:44 amBUF-IAD
15h 45m1 stop
$181Frontier
Find Deal
Thu, May 15 - Sat, May 17
United Airlines Logo
10:20 pm - 11:44 pmIAD-BUF
1h 24mnonstop
United Airlines Logo
6:00 am - 7:15 amBUF-IAD
1h 15mnonstop
$190United Airlines
Find Deal
Thu, Jul 17 - Sun, Jul 20
Frontier Logo
5:15 am - 2:41 pmIAD-BUF
9h 26m1 stop
Frontier Logo
1:08 pm - 12:49 pmBUF-IAD
23h 41m1 stop
$192Frontier
Find Deal
Thu, May 29 - Sat, May 31
Delta Logo
8:30 pm - 12:40 amIAD-BUF
4h 10m1 stop
Delta Logo
7:00 am - 11:40 amBUF-IAD
4h 40m1 stop
$199Delta
Find Deal
Wed, May 28 - Sat, May 31
Delta Logo
5:24 pm - 10:46 pmIAD-BUF
5h 22m1 stop
Delta Logo
7:00 am - 11:45 amBUF-IAD
4h 45m1 stop
$204Delta
Find Deal
Tue, May 13 - Tue, May 20
American Airlines Logo
5:02 am - 2:55 pmIAD-BUF
9h 53m2 stops
American Airlines Logo
7:11 pm - 12:02 amBUF-IAD
4h 51m1 stop
$256American Airlines
Find Deal
Wed, May 28 - Sat, May 31
American Airlines Logo
5:26 pm - 12:14 amIAD-BUF
6h 48m1 stop
American Airlines Logo
6:01 am - 1:22 pmBUF-IAD
7h 21m2 stops
$258American Airlines
Find Deal
Sat, May 24 - Wed, May 28
Useful Info

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

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

If you are looking for a flight deal from Washington Dulles Airport to Buffalo, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Buffalo, Friday is the cheapest day to fly and Tuesday is the most expensive.

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 round-trip 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 January, where tickets cost $254 (return) on average. On the other hand, the most expensive months are November and October, where the average cost of round-trip tickets is $406 and $361 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Buffalo, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$80
Best time to beat the crowds with an average 23% drop 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 $80 for a one-way ticket and $172 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, Delta, and JetBlue 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 ERJ-135 / ERJ-140 / ERJ-145 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.

  • 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.

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $137 or less one-way and $239 or less round-trip.

Prefer to fly direct from Washington Dulles Airport to Buffalo?

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

Direct 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

Direct 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 airline flying 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.
7.4
United AirlinesOverall score based on 8696 reviews
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
Airline reviews

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

2.0 MediocreAnonymous, Apr 2025IAD - FRA
Read more United Airlines reviews

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

Flight was cramped with every seat taken. The food was fine, nothing crazy to write home about. The plane felt dated and needing some TLC, the button for the window shade didn't work and there were no AC outlets to use. When communicating with staff all except one nice lady never seemed happy to help me almost like I was bothering them when asked for things like a glass of water or a snack. The flight was overall fine. It did what was needed which is get me from point A to point B. But it certainly was not special. I don't expect much in economy but I believe economy on a host of other airlines is more memorable and better experience.

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

Liked nothing. As per previous segment it was delay delay delay.

I completely missed my flight because the first leg was longer than planned. I had to sleep overnight in the airport because no accommodation was provided and then sent to Trinidad in the morning with an anticipated 7 hour layover before my flight to Georgetown which was now with Caribbean Airlines. I tried twice with customer service to see if they could put me on an earlier flight which had seats available but was told it wasn’t possible.

First class felt like economy, seats were horrible, food was horrible, staff inattentive

EVen warmer in the plane it think it was 24+ degrees

The flying experience was great. The flight was on time with no boarding issues during a peak travel period. The short cut baggage drop and process was not smooth and efficient at Dulles.

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

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