$72 Find Cheap Flights from Washington Dulles Airport to Buffalo - Compare and Save

These are the earliest and latest flight times available from Washington, D.C. Dulles Intl Airport to Buffalo:

• Earliest: departs at 8:15 am and lands at 9:45 am
• Latest: departs at 10:19 pm and lands at 11:49 pm.

The flight takes about 1h 30m.

Three cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to Buffalo:

• Economy Class
• Premium Economy Class
• First Class

A nonstop flight from Washington, D.C. Dulles Intl Airport to Buffalo takes 1h 30m, covering 284 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Washington, D.C. Dulles Intl Airport to Buffalo range from $271 to $430, with an average of $349 over the past 12 months. Anything below $271 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 6% above the $349 route average. Book 16 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $251 round-trip via Atlanta Hartsfield-Jackson (ATL), compared to $350 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$80 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Embraer ERJ-135 / ERJ-140 / ERJ-145 family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Canadair (Bombardier) Regional Jet CRJ-550 variants.

Morning is the busiest departure period on Washington, D.C. Dulles Intl Airport to Buffalo flights, with 34% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 33%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $219 to $1,047. That means the highest observed fare was about 5x higher than the lowest one.

One-way fares from Washington, D.C. Dulles Intl Airport to Buffalo are currently lower than usual. Average one-way flight prices are about $126, which is 55% below the typical average for this route.

Buffalo Airport (BUF) hosts 5 major car rental companies, with daily rates averaging $82 for economy cars. Top options include:

• Dollar
• Budget
• Hertz
• Thrifty
• Alamo

Flights from Washington, D.C. Dulles Intl Airport to Buffalo usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Buffalo (BUF).

One-stop flights from Washington, D.C. Dulles Intl Airport to Buffalo most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) - 58% of one-stop connections
• Charlotte Douglas (CLT) - 17% of one-stop connections
• Orlando (MCO) - 17% of one-stop connections
• Detroit Metropolitan Wayne County (DTW) - 8% of one-stop connections

Yes. Flexible dates can save you up to 43% on flights from Washington, D.C. Dulles Intl Airport to Buffalo. Tuesday is the cheapest departure day at $268 round-trip on average, while Monday is the most expensive at $467, a difference of $199.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Only United Airlines operates flights between Washington, D.C. Dulles Intl Airport and Buffalo.

Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 4h 19m, compared with 4h 25m via Charlotte Douglas (CLT) and 6h 55m via Atlanta Hartsfield-Jackson (ATL).

Among airlines operating Washington, D.C. Dulles Intl Airport to Buffalo flights:

• United Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.