$128 Find Cheap Flights from Washington Dulles Airport to Buffalo - Compare and Save

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.

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

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

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
• JetBlue: a cabin bag in Economy Class class

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

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

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $228 round-trip via New York John F Kennedy Intl (JFK), compared to $339 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.

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

• Atlanta Hartsfield-Jackson (ATL) - 62% of one-stop connections
• Orlando (MCO) - 23% of one-stop connections
• Charlotte Douglas (CLT) - 8% of one-stop connections
• New York John F Kennedy Intl (JFK) - 8% of one-stop connections

Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 28% on the Washington, D.C. Dulles Intl Airport to Buffalo route. Tuesday is the cheapest departure day at $268 round-trip on average, while Sunday is the most expensive at $369, a difference of $101. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Washington, D.C. Dulles Intl Airport to Buffalo flights, with 25% of flights leaving in that window. Afternoon departures account for 25%, evening flights for 25%, and night flights for 25%.

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 9:42 am
• Latest: departs at 10:24 pm and lands at 11:51 pm.

The flight takes about 1h 27m.

Last-minute fares on this route - booked within 2 weeks of departure - run 8% above the route average of $339. Book 16 weeks before departure for the lowest fares.

A nonstop flight from Washington, D.C. Dulles Intl Airport to Buffalo takes 1h 27m, 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.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $237 to $1,019. That means the highest observed fare was about 4x 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 $144, which is 44% below the typical average for this route.

Flying via New York John F Kennedy Intl (JFK) gives the shortest average 1-stop total travel time at 4h 26m, compared with 4h 31m via Charlotte Douglas (CLT) and 7h 08m via Atlanta Hartsfield-Jackson (ATL).

Buffalo Airport (BUF) hosts 5 major car rental companies, with daily rates starting from around $19 for economy cars. Top options include:
• Dollar
• Budget
• Hertz
• Alamo
• Thrifty

Round-trip flights from Washington, D.C. Dulles Intl Airport to Buffalo range from $266 to $404, with an average of $339 over the past 12 months. Anything below $266 counts as a good deal.