Flight Reliability
AS 1277 · Alaska Airlines
Santa Ana → Seattle (SNA–SEA)
90
Nerd Approved
WanderNerd Reliability Score
- 82%
- Arrive within 15 minutes
- 2 min
- Average arrival delay
- 0%
- Cancelled
- 5 min early
- Median arrival delay
Based on 113 historical flights. Data through May 2026.
What the data says
Saturday is the weak spot.
AS 1277 arrived on time 88% of the time on Tuesdays. On Saturdays: 75%.
A bit behind the SNA–SEA route.
AS 1277 arrived on time 82% of the time, versus 85% across the SNA–SEA route.
It basically never cancels.
Out of 113 scheduled flights, only 0.0% were cancelled.
The breakdown
- Mon81%(16 flights)
- Tue88%(16 flights)
- Wed88%(16 flights)
- Thu77%(17 flights)
- Fri82%(17 flights)
- Sat75%(16 flights)
- Sun87%(15 flights)
93%
Sep
Jun 56% → Sep 93% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 56% | 18 |
| July 2025 | 84% | 31 |
| August 2025 | 84% | 31 |
| September 2025 | 93% | 30 |
- Departures on time
- 83%
- Diverted
- 0%
- Flights flown
- 113
- Months covered
- 5
Same route, other flights
Keep nerding
Based on 113 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.