Boston (BOS) to Buffalo (BUF)
Flight time
≈ 1h 35m
Bearing
278° W
Boston (BOS) to Buffalo (BUF) is 394 miles (635 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BOS–BUF
US DOT T-100 · filed dataIn April 2026, Republic Airways operated the most departures, one of 4 carriers flying nonstop BOS–BUF; the Embraer E175 was the most common aircraft at 68% of departures; flights ran 72% full.
Departures
212
April 2026
Seats
20,320
both directions
Passengers
14,691
both directions
Load factor
72.3%
passengers ÷ seats
Who flies BOS–BUF?
Republic Airways operated the most nonstop BOS–BUF departures in April 2026 (120), one of 4 carriers on the route.
- YX
Republic Airways
120 departures · 9,098 seats
Share of departures56.6%72.8%
Load
- B6
JetBlue Airways
65 departures · 9,188 seats
Share of departures30.7%69.5%
Load
- MQ
Envoy Air
24 departures · 1,824 seats
Share of departures11.3%81.2%
Load
- AC
Air Canada
3 departures · 210 seats
Share of departures1.4%96.2%
Load
What plane flies BOS–BUF?
In April 2026, the Embraer E175 flew 68% of BOS–BUF departures — more than any other aircraft type.
- Embraer E175
144 departures · 74.2% load
67.9% - Airbus A220-300
61 departures · 71.3% load
28.8% - Airbus A320
7 departures · 57.9% load
3.3%
How has BOS–BUF traffic changed?
Nonstop BOS–BUF departures rose from 174 in May 2025 to 212 in April 2026.
Monthly nonstop BOS–BUF traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
174 departures · 15,877 passengers
77.0%
Load
June 2025
205 departures · 18,324 passengers
76.3%
Load
July 2025
246 departures · 21,014 passengers
81.9%
Load
August 2025
249 departures · 21,869 passengers
86.2%
Load
September 2025
173 departures · 18,869 passengers
76.8%
Load
October 2025
211 departures · 22,961 passengers
72.5%
Load
November 2025
170 departures · 15,969 passengers
65.2%
Load
December 2025
132 departures · 13,838 passengers
74.1%
Load
January 2026
93 departures · 9,076 passengers
69.8%
Load
February 2026
70 departures · 7,648 passengers
77.9%
Load
March 2026
220 departures · 16,774 passengers
67.5%
Load
April 2026
212 departures · 14,691 passengers
72.3%
Load
By direction
The DOT files each direction separately — they rarely match.
BOS → BUF
75.9% full
106 departures · 7,742 passengers
BUF → BOS
68.6% full
106 departures · 6,949 passengers
Nonstop BOS–BUF traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Boston (BOS) from Buffalo (BUF)?
BOS to BUF is 394 miles (635 km / 343 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BOS to BUF?
A nonstop covers the 394-mile great-circle distance in roughly 1h 35m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BOS–BUF?
In April 2026, the Embraer E175 flew the largest share of departures (67.9%), followed by the Airbus A220-300 (28.8%).
What mileage do I earn flying BOS–BUF?
Distance-based programs credit off the 394-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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