Route Reliability
Portland → Bozeman
PDX–BZN · 554 miles · Portland International Airport to Bozeman Yellowstone International Airport
97
Nerd Approved
WanderNerd Reliability Score
- 90%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 0%
- Cancelled
- 523
- Flights in the data
Data through May 2026.
Alaska Airlines is the only airline in this data on this route, arriving on time 90% of the time across 523 flights. No comparison to make.
What the data says
6–9 PM has a slight edge.
Departures between 6–9 PM arrived on time 93% of the time, against 88% between 9 PM–12 AM.
Skip Wednesday if you can.
PDX–BZN flights arrived on time 97% of the time on Saturdays. On Wednesdays: 84%.
It basically never cancels.
Out of 523 scheduled flights, only 0.0% were cancelled.
Flights on this route
The breakdown
- Mon93%(76 flights)
- Tue87%(76 flights)
- Wed84%(76 flights)
- Thu91%(76 flights)
- Fri91%(70 flights)
- Sat97%(72 flights)
- Sun88%(76 flights)
- 9 AM–12 PM91%(364 flights)
- 6–9 PM93%(29 flights)
- 9 PM–12 AM88%(129 flights)
84%
May
Jun 92% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 92% | 60 |
| July 2025 | 87% | 61 |
| August 2025 | 92% | 62 |
| September 2025 | 83% | 60 |
| October 2025 | 96% | 55 |
| November 2025 | 93% | 29 |
| December 2025 | 88% | 41 |
| January 2026 | 91% | 34 |
| February 2026 | 96% | 28 |
| March 2026 | 87% | 31 |
| April 2026 | 97% | 30 |
| May 2026 | 84% | 31 |
Keep nerding
Based on 523 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.