Flight Reliability
AS 1050 · Alaska Airlines
Seattle → San Francisco (SEA–SFO)99% of its flights flew this route. The rest (HNL–ITO) are included in these numbers.
63
A Little Dicey
WanderNerd Reliability Score
- 69%
- Arrive within 15 minutes
- 18 min
- Average arrival delay
- 2.4%
- Cancelled
- 1 min
- Median arrival delay
Based on 127 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
AS 1050 arrived on time 83% of the time on Tuesdays and just 53% on Sundays. That gap is worth planning around.
Lagging the Alaska Airlines network.
AS 1050 arrived on time 69% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon68%(19 flights)
- Tue83%(12 flights)
- Wed72%(18 flights)
- Thu63%(19 flights)
- Fri68%(19 flights)
- Sat75%(20 flights)
- Sun53%(17 flights)
- 12–3 PM—(1 flights)
- 6–9 PM68%(123 flights)
83%
Oct
Jun 71% → Oct 83% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 71% | 17 |
| July 2025 | 52% | 23 |
| August 2025 | 62% | 29 |
| September 2025 | 73% | 30 |
| October 2025 | 83% | 24 |
- Departures on time
- 65%
- Diverted
- 0%
- Flights flown
- 124
- 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.