Flight Reliability
AS 2254 · Alaska Airlines
Portland → Missoula (PDX–MSO)87% of its flights flew this route. The rest (PHX–PDX, RDD–SEA) are included in these numbers.
- 85%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 0.4%
- Cancelled
- 7 min early
- Median arrival delay
Based on 229 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
AS 2254 departing between 12–3 PM arrived on time 100% of the time, versus 83% between 9 PM–12 AM.
Mondays have been rough.
AS 2254 arrived on time 97% of the time on Saturdays and just 79% on Mondays. That gap is worth planning around.
A bit ahead of the Alaska Airlines network.
AS 2254 arrived on time 85% of the time, versus 80% across the Alaska Airlines network.
Slipping a little lately.
AS 2254 arrived on time 84% of the time over the last three months in the data, compared with 89% in the three months before that.
The breakdown
- Mon79%(34 flights)
- Tue83%(30 flights)
- Wed84%(32 flights)
- Thu80%(30 flights)
- Fri88%(32 flights)
- Sat97%(30 flights)
- Sun85%(39 flights)
- 9 AM–12 PM—(1 flights)
- 12–3 PM100%(22 flights)
- 3–6 PM—(6 flights)
- 9 PM–12 AM83%(198 flights)
Jun 79% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 29 |
| July 2025 | 83% | 30 |
| August 2025 | 84% | 31 |
| September 2025 | 92% | 24 |
| October 2025 | 92% | 25 |
| November 2025 | 93% | 28 |
| December 2025 | 58% | 26 |
| May 2026 | 100% | 13 |
- Departures on time
- 84%
- Diverted
- 0.4%
- Flights flown
- 227
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 229 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.