Flight Reliability
AS 1302 · Alaska Airlines
San Francisco → Portland (SFO–PDX)
84
Pretty Reliable
WanderNerd Reliability Score
- 80%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 0.9%
- Cancelled
- 7 min early
- Median arrival delay
Based on 232 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
AS 1302 arrived on time 91% of the time on Sundays and just 67% on Fridays. That gap is worth planning around.
Recent months have been rougher.
AS 1302 arrived on time 77% of the time over the last three months in the data, compared with 85% in the three months before that.
The breakdown
- Mon74%(34 flights)
- Tue88%(34 flights)
- Wed82%(34 flights)
- Thu73%(33 flights)
- Fri67%(33 flights)
- Sat85%(27 flights)
- Sun91%(35 flights)
- 12–3 PM81%(128 flights)
- 3–6 PM78%(102 flights)
61%
May
Oct 82% → May 61% on time
| Month | On-time percentage | Flights |
|---|---|---|
| October 2025 | 82% | 28 |
| November 2025 | 73% | 30 |
| December 2025 | 82% | 28 |
| January 2026 | 85% | 27 |
| February 2026 | 89% | 27 |
| March 2026 | 90% | 30 |
| April 2026 | 79% | 29 |
| May 2026 | 61% | 31 |
- Departures on time
- 76%
- Diverted
- 0%
- Flights flown
- 230
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 232 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.