Dulles (IAD) to Buffalo (BUF) flights
One airline flies nonstop from Dulles (IAD) to Buffalo (BUF): United Airlines. The two airports are 283 miles (456 km) apart. United Airlines is in Star Alliance. There are also 10 ways to fly it with one stop, through Philadelphia, New York and New York and more.
Airlines flying nonstop from IAD to BUF
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book IAD to BUF with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
IAD to BUF with one stop
10 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Philadelphia (PHL)United Airlines, then American Airlines
- Via New York (EWR)United Airlines the whole way
- Via New York (LGA)United Airlines, then Delta Air Lines and American Airlines
- Via New York (JFK)Delta Air Lines the whole way
- Via Detroit (DTW)Delta Air Lines the whole way
- Via Raleigh/Durham (RDU)United Airlines, then Frontier Airlines
- Via Boston (BOS)United Airlines, then JetBlue Airways, Delta Air Lines and 1 more
- Via Charlotte (CLT)American Airlines the whole way
- Via Chicago (ORD)United Airlines the whole way
- Via Nashville (BNA)United Airlines, then Southwest Airlines
IAD to BUF: common questions
Which airlines fly nonstop from IAD to BUF?
United Airlines (Star Alliance) flies nonstop from Dulles (IAD) to Buffalo (BUF).
How far is Dulles from Buffalo by plane?
Dulles (IAD) and Buffalo (BUF) are 283 miles (456 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book IAD to BUF award flights?
13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, JetBlue TrueBlue, Lufthansa Miles & More and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does IAD to BUF cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for IAD to BUF with taxes and fees.
Where can I connect between Dulles and Buffalo?
The most direct connections are through Philadelphia (PHL), New York (EWR), New York (LGA), New York (JFK) and Detroit (DTW). On 5 of them the same airline flies both flights, for example United Airlines through New York.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.