Flight Reliability
AS 974 · Alaska Airlines
San Diego → Portland (SAN–PDX)90% of its flights flew this route. The rest (KOA–SMF) are included in these numbers.
100
Nerd Approved
WanderNerd Reliability Score
- 93%
- Arrive within 15 minutes
- 2 min early
- Average arrival delay
- 0%
- Cancelled
- 9 min early
- Median arrival delay
Based on 163 historical flights. Data through May 2026.
What the data says
The 6–9 AM departure wins.
AS 974 departing between 6–9 AM arrived on time 94% of the time, versus 82% between 9 AM–12 PM.
Friday is doing you no favors.
AS 974 arrived on time 100% of the time on Tuesdays. On Fridays: 86%.
Better than the SAN–PDX route average.
AS 974 arrived on time 93% of the time, versus 86% across the SAN–PDX route.
Better than the Alaska Airlines network average.
AS 974 arrived on time 93% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon89%(27 flights)
- Tue100%(21 flights)
- Wed96%(26 flights)
- Thu86%(21 flights)
- Fri86%(21 flights)
- Sat96%(26 flights)
- Sun95%(21 flights)
- 6–9 AM94%(146 flights)
- 9 AM–12 PM82%(17 flights)
96%
Oct
Jun 100% → Oct 96% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 100% | 29 |
| July 2025 | 97% | 31 |
| August 2025 | 90% | 31 |
| September 2025 | 87% | 30 |
| October 2025 | 96% | 25 |
- Departures on time
- 95%
- Diverted
- 0%
- Flights flown
- 163
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 163 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.