Flight Reliability
AS 2309 · Alaska Airlines
PUW → Seattle (PUW–SEA)92% of its flights flew this route. The rest (GEG–SEA, EUG–LAX) are included in these numbers.
- 87%
- Arrive within 15 minutes
- 2 min early
- Average arrival delay
- 2.6%
- Cancelled
- 8 min early
- Median arrival delay
Based on 155 historical flights. Data through May 2026.
What the data says
Mornings have a slight edge.
Departures between 6–9 AM arrived on time 91% of the time, against 87% between 6–9 PM.
Thursdays have been rough.
AS 2309 arrived on time 100% of the time on Saturdays and just 74% on Thursdays. That gap is worth planning around.
A bit ahead of the PUW–SEA route.
AS 2309 arrived on time 87% of the time, versus 83% across the PUW–SEA route.
Better than the Alaska Airlines network average.
AS 2309 arrived on time 87% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon89%(27 flights)
- Tue85%(13 flights)
- Wed90%(20 flights)
- Thu74%(23 flights)
- Fri91%(23 flights)
- Sat100%(18 flights)
- Sun85%(27 flights)
- 6–9 AM91%(11 flights)
- 3–6 PM—(1 flights)
- 6–9 PM87%(139 flights)
Jun 91% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 91% | 11 |
| November 2025 | 86% | 14 |
| December 2025 | 64% | 14 |
| January 2026 | 84% | 19 |
| February 2026 | 91% | 21 |
| March 2026 | 89% | 28 |
| April 2026 | 89% | 27 |
| May 2026 | 100% | 12 |
- Departures on time
- 86%
- Diverted
- 0%
- Flights flown
- 151
- Months covered
- 9
Same route, other flights
Keep nerding
Based on 155 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.