Flight Reliability
AS 1387 · Alaska Airlines
Seattle → Santa Ana (SEA–SNA)
97
Nerd Approved
WanderNerd Reliability Score
- 97%
- Arrive within 15 minutes
- 12 min early
- Average arrival delay
- 2.0%
- Cancelled
- 14 min early
- Median arrival delay
Based on 148 historical flights. Data through May 2026.
What the data says
Friday comes out ahead.
A small edge: 100% on time on Fridays against 93% on Thursdays.
Better than the SEA–SNA route average.
AS 1387 arrived on time 97% of the time, versus 85% across the SEA–SNA route.
Well ahead of the Alaska Airlines network.
AS 1387 arrived on time 97% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon97%(31 flights)
- Tue—(6 flights)
- Wed—(6 flights)
- Thu93%(29 flights)
- Fri100%(29 flights)
- Sat100%(12 flights)
- Sun97%(32 flights)
100%
May
Nov 95% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 95% | 19 |
| December 2025 | 96% | 23 |
| January 2026 | 100% | 20 |
| February 2026 | 100% | 16 |
| March 2026 | 90% | 19 |
| April 2026 | 100% | 20 |
| May 2026 | 100% | 25 |
- Departures on time
- 95%
- Diverted
- 0%
- Flights flown
- 145
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 148 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.