Direct (nonstop) flights from Buffalo to Dulles
1 airline flys nonstop from Buffalo Niagara International (BUF) to Washington Dulles International (IAD). It's 283 miles (455 km), about 1h 20m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 28, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Buffalo to Dulles with one stop · direct emits 52 kg CO₂ per passenger
Looking for the return flight?
IAD → BUF: Flights from Dulles to BuffaloOther direct flights from Buffalo
Direct flights from Dulles (IAD)
Frequently Asked Questions
How long is the direct flight from Buffalo to Dulles?
A nonstop flight from Buffalo (BUF) to Dulles (IAD) takes approximately 1 hours and 20 minutes. The distance is 283 miles (455 km).
Which airlines fly nonstop from Buffalo to Dulles?
Just United Airlines.
Is there a nonstop flight from Buffalo to Dulles?
Yes. 1 airline: United Airlines.
How far is Buffalo from Dulles?
The flight distance from Buffalo to Dulles 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 Buffalo to Dulles?
At 1h 20m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Buffalo to Dulles?
Roughly 52 kg CO2 per passenger one-way. That's about the same as driving 260 km.
Is the return flight from Dulles to Buffalo 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 Buffalo to Dulles?
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 Buffalo Niagara International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.