Flight Reliability
AS 2509 · Alaska Airlines
Seattle → EAT (SEA–EAT)
86
Pretty Reliable
WanderNerd Reliability Score
- 90%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 3.1%
- Cancelled
- 6 min early
- Median arrival delay
Based on 64 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
AS 2509 arrived on time 100% of the time on Fridays and just 80% on Sundays. That gap is worth planning around.
A bit ahead of the SEA–EAT route.
AS 2509 arrived on time 90% of the time, versus 87% across the SEA–EAT route.
Better than the Alaska Airlines network average.
AS 2509 arrived on time 90% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon—(8 flights)
- Tue—(8 flights)
- Wed—(8 flights)
- Thu—(7 flights)
- Fri100%(11 flights)
- Sat90%(10 flights)
- Sun80%(10 flights)
92%
May
Aug 83% → May 92% on time
| Month | On-time percentage | Flights |
|---|---|---|
| August 2025 | 83% | 12 |
| December 2025 | 93% | 14 |
| May 2026 | 92% | 12 |
- Departures on time
- 89%
- Diverted
- 0%
- Flights flown
- 62
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 64 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.