Flight Reliability
AS 1355 · Alaska Airlines
Los Angeles → Portland (LAX–PDX)
88
Pretty Reliable
WanderNerd Reliability Score
- 86%
- Arrive within 15 minutes
- 1 min early
- Average arrival delay
- 1.4%
- Cancelled
- 10 min early
- Median arrival delay
Based on 208 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
AS 1355 arrived on time 93% of the time on Sundays and just 73% on Fridays. That gap is worth planning around.
A bit ahead of the Alaska Airlines network.
AS 1355 arrived on time 86% of the time, versus 80% across the Alaska Airlines network.
Ticking up lately.
AS 1355 arrived on time 89% of the time over the last three months in the data, compared with 82% in the three months before that.
The breakdown
- Mon81%(31 flights)
- Tue90%(31 flights)
- Wed90%(31 flights)
- Thu90%(30 flights)
- Fri73%(30 flights)
- Sat83%(23 flights)
- Sun93%(29 flights)
90%
May
Nov 96% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 96% | 26 |
| December 2025 | 71% | 28 |
| January 2026 | 87% | 31 |
| February 2026 | 89% | 27 |
| March 2026 | 87% | 30 |
| April 2026 | 89% | 28 |
| May 2026 | 90% | 29 |
- Departures on time
- 84%
- Diverted
- 0%
- Flights flown
- 205
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 208 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.