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

Portland-Hillsboro ⇄ Boeing Fld/King County International HIO–BFI

Airlines flew 10 flights between Portland-Hillsboro HIO in Portland, OR and Boeing Fld/King County International BFI in Seattle, WA in the twelve months to July 2026, both directions together: 10 passengers in 60 seats, 17% of them filled. 141 miles, about 36 minutes in the air, on 1 airline: Kenmore Air Harbor (10). Planning to fly it yourself? The weather and winds along this route right now.

10
flights, twelve months
HIO-BFI: 5 · BFI-HIO: 5
10
passengers
17% of seats filled
141
miles
about 36 minutes airborne
1
airline
1 aircraft type

Flights by month both directions

012232/258/251/2617/26
By month, as a table
flights
2/252
6/251
7/251
8/251
10/251
11/252
1/262
4/263
7/261

Passengers by month

023462/258/251/2607/26
By month, as a table
passengers
2/252
6/251
7/251
8/250
10/250
11/254
1/260
4/266
7/260

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Kenmore Air Harbor M5101017%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Pilatus PC-1210610

HIO → BFI this direction alone · flown July 2025 to July 2026

5 flights, 5 passengers in 30 seats. Kenmore Air Harbor 5.

BFI → HIO this direction alone · flown February 2025 to April 2026

5 flights, 5 passengers in 30 seats. Kenmore Air Harbor 5.

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: Portland-Hillsboro HIO and Boeing Fld/King County International BFI; all routes.