Flight Reliability
AS 1152 · Alaska Airlines
Seattle → Oakland (SEA–OAK)99% of its flights flew this route. The rest (HNL–ITO) are included in these numbers.
- 71%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 1.6%
- Cancelled
- 1 min early
- Median arrival delay
Based on 127 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
AS 1152 departing between 9 PM–12 AM arrived on time 72% of the time, versus 64% between 6–9 PM.
Mondays have been rough.
AS 1152 arrived on time 93% of the time on Tuesdays and just 43% on Mondays. That gap is worth planning around.
A bit behind the SEA–OAK route.
AS 1152 arrived on time 71% of the time, versus 77% across the SEA–OAK route.
Lagging the Alaska Airlines network.
AS 1152 arrived on time 71% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon43%(21 flights)
- Tue93%(15 flights)
- Wed71%(14 flights)
- Thu65%(20 flights)
- Fri84%(19 flights)
- Sat67%(15 flights)
- Sun81%(21 flights)
- 3–6 PM—(1 flights)
- 6–9 PM64%(11 flights)
- 9 PM–12 AM72%(113 flights)
Jun 57% → Oct 91% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 57% | 30 |
| July 2025 | 62% | 29 |
| August 2025 | 69% | 26 |
| September 2025 | 88% | 17 |
| October 2025 | 91% | 22 |
- Departures on time
- 71%
- Diverted
- 0%
- Flights flown
- 125
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 127 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.