Flight Reliability
AS 252 · Alaska Airlines
Portland → Kailua-Kona (PDX–KOA)
87
Pretty Reliable
WanderNerd Reliability Score
- 83%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 0%
- Cancelled
- 10 min early
- Median arrival delay
Based on 216 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
AS 252 arrived on time 90% of the time on Thursdays and just 74% on Sundays. That gap is worth planning around.
It basically never cancels.
Out of 216 scheduled flights, only 0.0% were cancelled.
Trending in the right direction.
AS 252 arrived on time 90% of the time over the last three months in the data, compared with 80% in the three months before that.
The breakdown
- Mon84%(31 flights)
- Tue80%(30 flights)
- Wed77%(30 flights)
- Thu90%(30 flights)
- Fri87%(31 flights)
- Sat87%(31 flights)
- Sun74%(31 flights)
- 6–9 AM83%(183 flights)
- 9 AM–12 PM81%(31 flights)
97%
May
Nov 73% → May 97% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 73% | 30 |
| December 2025 | 76% | 29 |
| January 2026 | 87% | 30 |
| February 2026 | 79% | 28 |
| March 2026 | 74% | 31 |
| April 2026 | 100% | 30 |
| May 2026 | 97% | 31 |
- Departures on time
- 85%
- Diverted
- 0.9%
- Flights flown
- 214
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 216 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.