Flight Reliability
AS 650 · Alaska Airlines
Seattle → San Diego (SEA–SAN)100% of its flights flew this route. The rest (SNA–SEA) are included in these numbers.
86
Pretty Reliable
WanderNerd Reliability Score
- 80%
- Arrive within 15 minutes
- 2 min
- Average arrival delay
- 0.5%
- Cancelled
- 5 min early
- Median arrival delay
Based on 219 historical flights. Data through May 2026.
What the data says
Saturday is the weak spot.
AS 650 arrived on time 84% of the time on Mondays. On Saturdays: 73%.
Trending in the right direction.
AS 650 arrived on time 87% of the time over the last three months in the data, compared with 79% in the three months before that.
The breakdown
- Mon84%(31 flights)
- Tue84%(31 flights)
- Wed84%(31 flights)
- Thu81%(31 flights)
- Fri75%(32 flights)
- Sat73%(30 flights)
- Sun78%(32 flights)
- 9 AM–12 PM80%(217 flights)
- 3–6 PM—(1 flights)
87%
May
Nov 70% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 70% | 30 |
| December 2025 | 57% | 30 |
| January 2026 | 90% | 31 |
| February 2026 | 89% | 28 |
| March 2026 | 84% | 31 |
| April 2026 | 90% | 30 |
| May 2026 | 87% | 31 |
- Departures on time
- 84%
- Diverted
- 0%
- Flights flown
- 218
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 219 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.