Flight Reliability
AS 83 · Alaska Airlines
Seattle → Anchorage (SEA–ANC)
73
Usually Fine
WanderNerd Reliability Score
- 70%
- Arrive within 15 minutes
- 12 min
- Average arrival delay
- 1.0%
- Cancelled
- 1 min
- Median arrival delay
Based on 296 historical flights. Data through May 2026.
What the data says
Tuesdays have been rough.
AS 83 arrived on time 79% of the time on Saturdays and just 61% on Tuesdays. That gap is worth planning around.
A bit behind the SEA–ANC route.
AS 83 arrived on time 70% of the time, versus 75% across the SEA–ANC route.
Lagging the Alaska Airlines network.
AS 83 arrived on time 70% of the time, versus 80% across the Alaska Airlines network.
Trending in the right direction.
AS 83 arrived on time 70% of the time over the last three months in the data, compared with 62% in the three months before that.
The breakdown
- Mon75%(44 flights)
- Tue61%(44 flights)
- Wed78%(36 flights)
- Thu66%(44 flights)
- Fri64%(45 flights)
- Sat79%(43 flights)
- Sun70%(37 flights)
79%
May
Jun 62% → May 79% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 62% | 29 |
| July 2025 | 71% | 31 |
| August 2025 | 72% | 29 |
| September 2025 | 96% | 26 |
| October 2025 | 72% | 29 |
| November 2025 | 82% | 11 |
| December 2025 | 39% | 31 |
| January 2026 | 67% | 30 |
| February 2026 | 73% | 26 |
| March 2026 | 57% | 14 |
| May 2026 | 79% | 29 |
- Departures on time
- 74%
- Diverted
- 0%
- Flights flown
- 293
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 296 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.