Flight Reliability
AS 3398 · Alaska Airlines
Sacramento → San Diego (SMF–SAN)99% of its flights flew this route. The rest (LAS–LAX) are included in these numbers.
- 92%
- Arrive within 15 minutes
- 2 min early
- Average arrival delay
- 1.6%
- Cancelled
- 10 min early
- Median arrival delay
Based on 185 historical flights. Data through May 2026.
What the data says
Saturdays have been rough.
AS 3398 arrived on time 100% of the time on Tuesdays and just 83% on Saturdays. That gap is worth planning around.
Well ahead of the SMF–SAN route.
AS 3398 arrived on time 92% of the time, versus 75% across the SMF–SAN route.
Better than the Alaska Airlines network average.
AS 3398 arrived on time 92% of the time, versus 80% across the Alaska Airlines network.
Slipping a little lately.
AS 3398 arrived on time 90% of the time over the last three months in the data, compared with 93% in the three months before that.
The breakdown
- Mon96%(28 flights)
- Tue100%(24 flights)
- Wed100%(20 flights)
- Thu90%(29 flights)
- Fri89%(28 flights)
- Sat83%(23 flights)
- Sun90%(29 flights)
- 6–9 AM92%(180 flights)
- 9 PM–12 AM—(1 flights)
Jun 92% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 92% | 24 |
| July 2025 | 97% | 30 |
| August 2025 | 90% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 100% | 15 |
| February 2026 | 82% | 17 |
| March 2026 | 88% | 16 |
| May 2026 | 100% | 17 |
- Departures on time
- 97%
- Diverted
- 0.5%
- Flights flown
- 181
- Months covered
- 9
Same route, other flights
Keep nerding
Based on 185 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.