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

Rosario ⇄ Fishermans Bay RSJ–81W

Airlines flew 79 flights between Rosario RSJ in Rosario, WA and Fishermans Bay 81W in Lopez, WA in the twelve months to July 2026, both directions together: 149 passengers in 613 seats, 24% of them filled. 9 miles, about 5 minutes in the air, on 1 airline: Kenmore Air Harbor (79).

79
flights, twelve months
RSJ-81W: 32 · 81W-RSJ: 47
149
passengers
24% of seats filled
9
miles
about 5 minutes airborne
1
airline
3 aircraft types

Flights by month both directions

010202939145/2626397/26
By month, as a table
flights
5/2614
6/2626
7/2639

Passengers by month

015304661285/2661607/26
By month, as a table
passengers
5/2628
6/2661
7/2660

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Kenmore Air Harbor M57914924%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
De Havilland DHC3 Otter401097
Float/Amphib Turbine20632
De Havilland DHC2 Beaver19520

RSJ → 81W this direction alone · flown May 2026 to July 2026

32 flights of 32 scheduled, 50 passengers in 221 seats. Kenmore Air Harbor 32.

81W → RSJ this direction alone · flown May 2026 to July 2026

47 flights of 47 scheduled, 99 passengers in 392 seats. Kenmore Air Harbor 47.

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: Rosario RSJ and Fishermans Bay 81W; all routes.