The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Boeing Fld/King County International ⇄ Buffalo Niagara International BFI–BUF

Airlines flew 2 flights between Boeing Fld/King County International BFI in Seattle, WA and Buffalo Niagara International BUF in Buffalo, NY in the twelve months to July 2026, both directions together: 107 passengers in 140 seats, 76% of them filled. 2,121 miles, on 1 airline: Air Canada (2). Planning to fly it yourself? The weather and winds along this route right now.

2
flights, twelve months
BFI-BUF: 1 · BUF-BFI: 1
107
passengers
76% of seats filled
2,121
miles
1
airline
1 aircraft type

Flights by month both directions

0001111/25113/26
By month, as a table
flights
1/251
12/251
3/261

Passengers by month

014284256541/2551563/26
By month, as a table
passengers
1/2554
12/2551
3/2656

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Air Canada AC210776%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Airbus Industrie A320-100/200270107

BFI → BUF this direction alone · flown December 2025 to December 2025

1 flights, 51 passengers in 70 seats. Air Canada 1.

BUF → BFI this direction alone · flown January 2025 to March 2026

1 flights, 56 passengers in 70 seats. Air Canada 1.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Boeing Fld/King County International BFI and Buffalo Niagara International BUF; all routes.