Buffalo (BUF) to Dulles (IAD)
Flight time
≈ 1h 22m
Bearing
166° S
Buffalo (BUF) to Dulles (IAD) is 284 miles (457 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BUF–IAD
Filed traffic dataIn June 2026, GoJet Airlines operated the most departures, one of 3 carriers flying nonstop BUF–IAD; the Bombardier CRJ-550 was the most common aircraft at 49% of departures; flights ran 87% full.
Departures
210
June 2026
Seats
11,072
both directions
Passengers
9,674
both directions
Load factor
87.4%
RPM ÷ ASM
Who flies BUF–IAD?
GoJet Airlines operated the most nonstop BUF–IAD departures in June 2026 (102), one of 3 carriers on the route.
- G7
102 departures · 5,100 seats
Share of departures48.6%86.7%
Load
- C5
86 departures · 4,300 seats
Share of departures41.0%91.5%
Load
- YX
22 departures · 1,672 seats
Share of departures10.5%79.0%
Load
What plane flies BUF–IAD?
In June 2026, the Bombardier CRJ-550 flew 49% of BUF–IAD departures — more than any other aircraft type.
- Bombardier CRJ-550
102 departures · 86.7% load
48.6% - Embraer ERJ-145
86 departures · 91.5% load
40.9% - Embraer E175
22 departures · 79.0% load
10.5%
How has BUF–IAD traffic changed?
Nonstop BUF–IAD departures fell from 230 in July 2025 to 210 in June 2026.
Monthly nonstop BUF–IAD traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
230 departures · 11,965 passengers
87.1%
Load
August 2025
228 departures · 11,985 passengers
90.9%
Load
September 2025
197 departures · 10,308 passengers
87.5%
Load
October 2025
181 departures · 8,136 passengers
88.2%
Load
November 2025
172 departures · 7,661 passengers
80.6%
Load
December 2025
146 departures · 6,867 passengers
85.4%
Load
January 2026
127 departures · 5,721 passengers
86.5%
Load
February 2026
136 departures · 6,389 passengers
81.6%
Load
March 2026
216 departures · 9,464 passengers
83.6%
Load
April 2026
214 departures · 9,325 passengers
84.2%
Load
May 2026
232 departures · 11,954 passengers
83.6%
Load
June 2026
210 departures · 9,674 passengers
87.4%
Load
By direction
Each direction is filed separately — they rarely match.
BUF → IAD
88.3% full
105 departures · 4,889 passengers
IAD → BUF
86.4% full
105 departures · 4,785 passengers
Nonstop BUF–IAD traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through June 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Buffalo (BUF) from Dulles (IAD)?
BUF to IAD is 284 miles (457 km / 247 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BUF to IAD?
A nonstop covers the 284-mile great-circle distance in roughly 1h 22m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BUF–IAD?
In June 2026, the Bombardier CRJ-550 flew the largest share of departures (48.6%), followed by the Embraer ERJ-145 (40.9%).
What mileage do I earn flying BUF–IAD?
Distance-based programs credit off the 284-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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