IAD - BUF

$96 Find Cheap Flights from Washington Dulles Airport to Buffalo - Compare and Save

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 8/15. 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

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$254
Typical prices: $317-$433
Frontier
Thu 8/20Sun 8/23
IAD - BUF • 1 stop
Cheapest non-stop
$261
Typical prices: $317-$405
United Airlines
Sat 8/29Mon 8/31
IAD - BUF • Non-stop
Top airlines
Cheapest • from $254 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines. Average duration is 1h 26m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $228 (round-trip)
Shortest trip • 3h 57m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 17% price drop
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 Buffalo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Buffalo

Thu, Aug 20 - Sun, Aug 23
Frontier Logo
8:39 pm - 10:29 am
IAD
-
BUF
13h 50m
1 stop
Frontier Logo
11:36 am - 5:14 pm
BUF
-
IAD
5h 38m
1 stop
$254Frontier
Fri, Sep 4 - Mon, Sep 7
Frontier Logo
9:54 pm - 6:09 pm
IAD
-
BUF
20h 15m
1 stop
Frontier Logo
6:54 pm - 10:07 am
BUF
-
IAD
15h 13m
1 stop
$255Frontier
Thu, Sep 17 - Sun, Sep 20
Frontier Logo
11:12 am - 5:45 pm
IAD
-
BUF
6h 33m
1 stop
Frontier Logo
12:49 pm - 9:32 am
BUF
-
IAD
20h 43m
1 stop
$255Frontier
Fri, Aug 28 - Sun, Aug 30
Frontier Logo
10:45 am - 6:09 pm
IAD
-
BUF
7h 24m
1 stop
Frontier Logo
11:36 am - 5:14 pm
BUF
-
IAD
5h 38m
1 stop
$255Frontier
Sun, Aug 16 - Wed, Aug 19
Frontier Logo
8:33 pm - 1:53 pm
IAD
-
BUF
17h 20m
1 stop
Frontier Logo
11:36 am - 5:14 pm
BUF
-
IAD
5h 38m
1 stop
$257Frontier
Sat, Aug 29 - Mon, Aug 31
United Airlines Logo
8:25 am - 9:48 am
IAD
-
BUF
1h 23mnonstop
United Airlines Logo
7:59 pm - 9:17 pm
BUF
-
IAD
1h 18mnonstop
$261United Airlines
Mon, Aug 17 - Wed, Aug 19
Multiple Airlines Logo
12:00 pm - 9:23 am
IAD
-
BUF
21h 23m
2 stops
Multiple Airlines Logo
11:36 am - 5:14 pm
BUF
-
IAD
5h 38m
1 stop
$261Multiple Airlines
Sat, Aug 29 - Mon, Aug 31
United Airlines Logo
12:50 pm - 2:18 pm
IAD
-
BUF
1h 28mnonstop
United Airlines Logo
7:59 pm - 9:17 pm
BUF
-
IAD
1h 18mnonstop
$262United Airlines
Sat, Sep 5 - Sat, Sep 12
Frontier Logo
8:39 pm - 10:29 am
IAD
-
BUF
13h 50m
1 stop
Frontier Logo
1:45 pm - 8:09 pm
BUF
-
IAD
30h 24m
2 stops
$262Frontier
Thu, Aug 27 - Mon, Aug 31
Frontier Logo
12:28 pm - 10:29 am
IAD
-
BUF
22h 01m
2 stops
Frontier Logo
11:36 am - 5:14 pm
BUF
-
IAD
5h 38m
1 stop
$263Frontier
Booking Insights

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.

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

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

Flight prices are below average for this route right now.

Flights to Buffalo from Washington, D.C. Dulles Intl Airport usually cost between $317 and $433 in August.
The lowest price found in the past 5 days was $254 on Frontier (Aug 20-Aug 23).

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 December, where tickets cost $284 (return) on average. On the other hand, the most expensive months are April and July, where the average cost of round-trip tickets is $397 and $379 respectively.

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

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 $368, prices are generally cheapest when you fly direct.

Good to know

Low season

January

Cheapest flight

$96
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 1% lower on average.
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 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Buffalo was $96 for a one-way ticket and $254 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, Porter Airlines, JetBlue, 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 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 $233 or less one-way and $349 or less round-trip.

Prefer to fly direct from Washington Dulles Airport to Buffalo?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl 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

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

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

Reviews of the 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 10046 reviews
8.1Crew
7.1Entertainment
6.6Food
7.3Comfort
7.7Boarding
Airline reviews

My flight was delayed so bad i missed u it so i just said never mind

2.0 MediocreDanika, Jul 2026
IAD - EWR
Read more United Airlines reviews

My flight was delayed so bad i missed u it so i just said never mind

Delayed 2 hours while stuck on the aircraft. If the luggage was properly loaded the first time we probably wouldn’t have been delayed at all

Onboard staff was courteous, helpful, responsive and friendly. The boarding process was disorganized, poorly communicated, and disheveled. Gate agents were yelling instead of using the PA system, didn’t communicate the timing delay of our flight, and created an atmosphere of chaos rather than order and communication. As far as I know, there was no reason for their. I would hate to see how it operated under extreme conditions. I’ve never seen United Airlines operations in such a state.

The flight did not have its customary snacks during the flight. Apparently they were never loaded on the plane.

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Delays from united along with Newark air space caused delays. But an average flight! Unfortunately we come to expect delays from the airlines.

Fast checkin with the self serve terminal, good communication at the boarding gate.

The plane’s radio wasn’t working. This delayed the plane for an hour and a half. Then we all broaded and taxied down the runway only to get called back because the radio was still not working. Had to get off the plane and then find another plane making the trip 4 hours delayed. Maybe a different plane should have been chosen sooner?!?!?!

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.

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.

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

Information on your arrival and departure airports