Washington Dulles International Airport
Dulles, United StatesIAD / KIAD
International hub · 171 direct destinations · 4 runways · longest runway 11,499 ft
67 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Dulles → Buffalo
IAD
DullesWashington Dulles International Airport
DullesWashington Dulles International AirportBUFBuffaloBuffalo Niagara International Airport
BuffaloBuffalo Niagara International Airport- Distance
- 284 mi
- Estimated flight time
- ~1h 5m
Same local time in Dulles and Buffalo.
Observed nonstop
How often does this route fly?
Frequency
Several times a day
On average around 4 flights a day, observed from October 2025 to September 2026.
- 4
- flights per day
- 4
- busiest month · Mar
- 2
- quietest month · Dec
- 50 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 2Jan2026
- 2.5Feb
- 4Mar
- 4Apr
- 4May
- 4Jun
- 4Jul
- 4Aug
- 4Sep
- 3Oct2025
- 3Nov
- 2Dec
Airlines
Who flies it
CommuteAirall year
GoJet Airlines LLCall year
Republic Airwaysall year
Mesa Airlinesautumn
Air Canadanow and then
Through the day
Departure times
Local time in Dulles. Most departures between 12:00 and 15:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 3.4Mon
- 2.9Tue
- 3Wed
- 3.5Thu
- 3.6Fri
- 3.1Sat
- 3.4Sun
Fleet
Aircraft observed
- E45X51%
- Bombardier CRJ700CRJ722%
- Embraer 175E75L16%
- LJ312%
- Bombardier Challenger 350CL351%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 2 | 75 |
|
| February 2026 | 2.5 | 72 |
|
| March 2026 | 4 | 110 |
|
| April 2026 | 4 | 111 |
|
| May 2026 | 4 | 111 |
|
| June 2026 | 4 | 109 |
|
| July 2026 | 4 | 104 |
|
| August 2026 | 4 | 112 |
|
| September 2026 | 4 | 114 |
|
| October 2025 | 3 | 95 |
|
| November 2025 | 3 | 98 |
|
| December 2025 | 2 | 65 |
|
Airlines observed on this route
From observed callsign routes on IAD-BUF - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Dulles: 171.
- Direct destinations observed from Buffalo: 62.
The airports on this route
Buffalo Niagara International Airport
Buffalo, United StatesBUF / KBUF
Regional airport · 62 direct destinations · 2 runways · longest runway 8,829 ft
66 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
DCA BUFRonald Reagan Washington National AirportWashington is about 24 mi from Dulles.View route →BWI BUFBaltimore/Washington International Thurgood Marshall AirportBaltimore is about 45 mi from Dulles.View route →IAD ROCFrederick Douglass Greater Rochester International AirportRochester is about 55 mi from Buffalo.View route →IAD YTZBilly Bishop Toronto City AirportToronto is about 58 mi from Buffalo.View route →
About the route from Dulles to Buffalo
The observed direct connection between Washington Dulles International Airport (IAD) and Buffalo Niagara International Airport (BUF) covers approximately 284 mi. The estimated flight time is around 1h 5m. Air Canada, CommuteAir, GoJet Airlines LLC, Mesa Airlines and Republic Airways have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Dulles from Buffalo by air?
- The great-circle distance between Washington Dulles International Airport and Buffalo Niagara International Airport is approximately 284 mi.
- How long is the flight from Dulles to Buffalo?
- Based on the distance, the estimated flight time is about 1h 5m. This is an estimate, not a schedule.
- Is there a direct connection from Dulles to Buffalo?
- Yes, a direct connection between IAD and BUF has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Air Canada, CommuteAir, GoJet Airlines LLC, Mesa Airlines and Republic Airways.
- How often is there a flight from Dulles to Buffalo?
- On average around 4 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 1,176 observed flights. Mainly CommuteAir, GoJet Airlines LLC, Republic Airways. That is an observation, not a timetable.
- What is the current time difference between Dulles and Buffalo?
- Same local time in Dulles and Buffalo.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.