Portland (PDX) to Pasco (PSC) flights
Horizon Air, SkyWest Airlines fly nonstop from Portland International Airport to Tri Cities Airport, with about 14 flights a week in July 2026. The 174-mile flight takes about 57m gate to gate.
- Distance
- 174 mi · 280 km
- Flight time
- 57m
- Airlines
- 2
- Seats filled
- 81%
Airlines flying PDX to PSC
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Horizon Air | 7 | Embraer E175 | 3,274 | 55m |
| SkyWest Airlines | 7 | Embraer E175 | 3,182 | 58m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
PDX to PSC flight schedule
4 flight numbers flew this route in August 2026. The first usually leaves at 2:30pm and the last at 9:55pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AS 2108Alaska Airlines · operated by Horizon Air | 2:30pm | 3:23pm | 13 | 85% |
| AS 2475Alaska Airlines · operated by Horizon Air | 2:31pm | 3:22pm | 18 | 84% |
| AS 3066Alaska Airlines · operated by SkyWest Airlines | 9:50pm | 10:44pm | 18 | 81% |
| AS 3485Alaska Airlines · operated by SkyWest Airlines | 9:55pm | 10:48pm | 13 | 92% |
Is PDX to PSC on time?
From September 2025 to August 2026, 84% of 166 flights arrived within 15 minutes of schedule and 0.6% were cancelled. Flights leaving around 2pm were the most punctual (84%), those around 9pm the least (83%). Most delay time was caused by late-arriving aircraft (44%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 166 | 84% | 9 min | 0.6% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| March 2026 | 2 | 0 | |
| June 2026 | 42 | 2,666 | |
| July 2026 | 61 | 3,790 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.