Flight Reliability
AS 831 · Alaska Airlines
Portland → Kahului (PDX–OGG)
100
Nerd Approved
WanderNerd Reliability Score
- 96%
- Arrive within 15 minutes
- 5 min early
- Average arrival delay
- 0%
- Cancelled
- 6 min early
- Median arrival delay
Based on 136 historical flights. Data through May 2026.
What the data says
Wednesdays have been rough.
AS 831 arrived on time 100% of the time on Mondays and just 84% on Wednesdays. That gap is worth planning around.
A bit ahead of the PDX–OGG route.
AS 831 arrived on time 96% of the time, versus 89% across the PDX–OGG route.
Well ahead of the Alaska Airlines network.
AS 831 arrived on time 96% of the time, versus 80% across the Alaska Airlines network.
It basically never cancels.
Out of 136 scheduled flights, only 0.0% were cancelled.
The breakdown
- Mon100%(19 flights)
- Tue95%(19 flights)
- Wed84%(19 flights)
- Thu95%(20 flights)
- Fri100%(20 flights)
- Sat95%(20 flights)
- Sun100%(19 flights)
100%
Oct
Jun 90% → Oct 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 90% | 19 |
| July 2025 | 90% | 31 |
| August 2025 | 97% | 31 |
| September 2025 | 100% | 30 |
| October 2025 | 100% | 25 |
- Departures on time
- 93%
- Diverted
- 0%
- Flights flown
- 136
- Months covered
- 5
Same route, other flights
Keep nerding
Based on 136 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.