Flight Reliability
AS 1288 · Alaska Airlines
Seattle → Santa Ana (SEA–SNA)
90
Nerd Approved
WanderNerd Reliability Score
- 94%
- Arrive within 15 minutes
- 8 min early
- Average arrival delay
- 2.9%
- Cancelled
- 11 min early
- Median arrival delay
Based on 136 historical flights. Data through May 2026.
What the data says
Wednesdays have been rough.
AS 1288 arrived on time 100% of the time on Tuesdays and just 83% on Wednesdays. That gap is worth planning around.
Better than the SEA–SNA route average.
AS 1288 arrived on time 94% of the time, versus 85% across the SEA–SNA route.
Better than the Alaska Airlines network average.
AS 1288 arrived on time 94% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon95%(21 flights)
- Tue100%(18 flights)
- Wed83%(18 flights)
- Thu95%(20 flights)
- Fri95%(19 flights)
- Sat94%(16 flights)
- Sun95%(20 flights)
93%
Oct
Jun 97% → Oct 93% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 97% | 29 |
| July 2025 | 93% | 28 |
| August 2025 | 90% | 31 |
| September 2025 | 97% | 30 |
| October 2025 | 93% | 14 |
- Departures on time
- 89%
- Diverted
- 0%
- Flights flown
- 132
- 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.