Portland (PDX) to Missoula (MSO) flights
SkyWest Airlines, Horizon Air fly nonstop from Portland International Airport to Missoula Montana Airport, with about 10 flights a week in July 2026. The 418-mile flight takes about 1h 25m gate to gate.
- Distance
- 418 mi · 673 km
- Flight time
- 1h 25m
- Airlines
- 2
- Seats filled
- 81%
Airlines flying PDX to MSO
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| SkyWest Airlines | 7 | Embraer E175 | 6,981 | 1h 38m |
| Horizon Air | 3 | Embraer E175 | 24,758 | 1h 22m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
PDX to MSO flight schedule
2 flight numbers flew this route in August 2026. The first usually leaves at 10:48am and the last at 2:30pm. 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 2146Alaska Airlines · operated by Horizon Air | 10:48am | 1:25pm | 13 | 94% |
| AS 3097Alaska Airlines · operated by SkyWest Airlines | 2:30pm | 5:01pm | 18 | 76% |
Is PDX to MSO on time?
From September 2025 to August 2026, 88% of 484 flights arrived within 15 minutes of schedule and 0.4% were cancelled. Flights leaving around 11am were the most punctual (92%), those around 2pm the least (76%). Most delay time was caused by late-arriving aircraft (50%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 484 | 88% | 7 min | 0.4% |
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
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 10am to 11am | 203 | 92% | |
| 11am to 12pm | 101 | 92% | |
| 2pm to 3pm | 70 | 76% | |
| 9pm to 10pm | 110 | 84% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 62 | 3,644 | |
| September 2025 | 48 | 2,842 | |
| October 2025 | 56 | 3,410 | |
| November 2025 | 60 | 3,255 | |
| December 2025 | 56 | 3,630 | |
| January 2026 | 36 | 2,080 | |
| February 2026 | 28 | 1,747 | |
| March 2026 | 32 | 2,044 | |
| April 2026 | 30 | 1,991 | |
| May 2026 | 31 | 2,020 | |
| June 2026 | 30 | 2,031 | |
| July 2026 | 46 | 3,045 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.