Flight Reliability
AS 1301 · Alaska Airlines
Los Angeles → Seattle (LAX–SEA)
93
Nerd Approved
WanderNerd Reliability Score
- 85%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 0%
- Cancelled
- 11 min early
- Median arrival delay
Based on 314 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
AS 1301 departing between 12–3 PM arrived on time 88% of the time, versus 61% between 6–9 PM.
Friday is doing you no favors.
AS 1301 arrived on time 93% of the time on Saturdays and just 72% on Fridays. That gap is worth planning around.
A bit ahead of the Alaska Airlines network.
AS 1301 arrived on time 85% of the time, versus 80% across the Alaska Airlines network.
It basically never cancels.
Out of 314 scheduled flights, only 0.0% were cancelled.
The breakdown
- Mon89%(45 flights)
- Tue89%(44 flights)
- Wed86%(43 flights)
- Thu80%(44 flights)
- Fri72%(46 flights)
- Sat93%(45 flights)
- Sun89%(47 flights)
- 12–3 PM88%(34 flights)
- 3–6 PM88%(249 flights)
- 6–9 PM61%(31 flights)
81%
May
Jun 63% → May 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 63% | 30 |
| July 2025 | 77% | 30 |
| August 2025 | 77% | 31 |
| September 2025 | 100% | 30 |
| October 2025 | 97% | 31 |
| November 2025 | 100% | 28 |
| December 2025 | 90% | 19 |
| February 2026 | 94% | 17 |
| March 2026 | 77% | 31 |
| April 2026 | 87% | 30 |
| May 2026 | 81% | 31 |
- Departures on time
- 86%
- Diverted
- 0%
- Flights flown
- 314
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 314 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.