Flight Reliability
AS 136 · Alaska Airlines
Seattle → Anchorage (SEA–ANC)82% of its flights flew this route. The rest (ANC–OTZ) are included in these numbers.
- 74%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 1.0%
- Cancelled
- 1 min
- Median arrival delay
Based on 312 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
AS 136 departing between 9 AM–12 PM arrived on time 87% of the time, versus 71% between 6–9 PM.
Skip Wednesday if you can.
AS 136 arrived on time 84% of the time on Tuesdays. On Wednesdays: 69%.
A bit behind the Alaska Airlines network.
AS 136 arrived on time 74% of the time, versus 80% across the Alaska Airlines network.
Trending in the right direction.
AS 136 arrived on time 78% of the time over the last three months in the data, compared with 67% in the three months before that.
The breakdown
- Mon77%(47 flights)
- Tue84%(43 flights)
- Wed69%(45 flights)
- Thu71%(44 flights)
- Fri73%(40 flights)
- Sat71%(45 flights)
- Sun78%(45 flights)
- 9 AM–12 PM87%(55 flights)
- 6–9 PM71%(222 flights)
- 9 PM–12 AM75%(32 flights)
Jun 83% → Apr 72% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 30 |
| July 2025 | 72% | 29 |
| August 2025 | 63% | 30 |
| September 2025 | 90% | 30 |
| October 2025 | 77% | 30 |
| November 2025 | 71% | 28 |
| December 2025 | 48% | 31 |
| January 2026 | 80% | 30 |
| February 2026 | 84% | 25 |
| March 2026 | 79% | 28 |
| April 2026 | 72% | 18 |
- Departures on time
- 70%
- Diverted
- 0%
- Flights flown
- 309
- Months covered
- 11
Same route, other flights
Keep nerding
Based on 312 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.