Direct (nonstop) flights from Dulles to Buffalo
1 airline flys nonstop from Washington Dulles International (IAD) to Buffalo Niagara International (BUF). It's 283 miles (455 km), about 1h 26m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Dulles to Buffalo with one stop · direct emits 52 kg CO₂ per passenger
Looking for the return flight?
BUF → IAD: Flights from Buffalo to DullesOther direct flights from Dulles
Direct flights from Buffalo (BUF)
Frequently Asked Questions
How long is the direct flight from Dulles to Buffalo?
A nonstop flight from Dulles (IAD) to Buffalo (BUF) takes approximately 1 hours and 26 minutes. The distance is 283 miles (455 km).
Which airlines fly nonstop from Dulles to Buffalo?
Just United Airlines.
Is there a nonstop flight from Dulles to Buffalo?
Yes. 1 airline: United Airlines.
How far is Dulles from Buffalo?
The flight distance from Dulles to Buffalo is 283 miles (455 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Paris.
What type of aircraft flies from Dulles to Buffalo?
At 1h 26m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Dulles to Buffalo?
Roughly 52 kg CO2 per passenger one-way. That's about the same as driving 260 km.
Is the return flight from Buffalo to Dulles also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Dulles to Buffalo?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Washington Dulles International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.