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

Tri-Cities ⇄ Portland International PSC–PDX

Airlines flew 212 flights between Tri-Cities PSC in Pasco, WA and Portland International PDX in Portland, OR in the twelve months to July 2026, both directions together: 13,366 passengers in 16,112 seats, 83% of them filled, and 255 pounds of freight. 174 miles, about 36 minutes in the air, on 2 airlines: Horizon Air (106), SkyWest Airlines Inc. (106). Planning to fly it yourself? The weather and winds along this route right now.

212
flights, twelve months
PSC-PDX: 107 · PDX-PSC: 105
13,366
passengers
83% of seats filled
174
miles
about 36 minutes airborne
2
airlines
1 aircraft type

Flights by month both directions

030619212212/252211/263841227/26
By month, as a table
flights
2/251
5/252
12/252
1/261
3/263
6/2684
7/26122

Passengers by month

01,9143,8275,7407,65402/259513101/26605,5217,6547/26
By month, as a table
passengers
2/250
5/2595
12/25131
1/260
3/2660
6/265,521
7/267,654

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Horizon Air QX1066,63382%scheduled passenger service
SkyWest Airlines Inc. OO1066,73384%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Embraer ERJ-1752127613,366

PSC → PDX this direction alone · flown February 2025 to July 2026

107 flights of 105 scheduled, 6,910 passengers in 8,132 seats. Horizon Air 54; SkyWest Airlines Inc. 53.

PDX → PSC this direction alone · flown May 2025 to July 2026

105 flights of 105 scheduled, 6,456 passengers in 7,980 seats, 255 pounds of freight. SkyWest Airlines Inc. 53; Horizon Air 52.

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: Tri-Cities PSC and Portland International PDX; all routes.