Flight Reliability
AS 2354 · Alaska Airlines
Seattle → Portland (SEA–PDX)86% of its flights flew this route. The rest (SEA–GEG, OAK–SAN) are included in these numbers.
- 79%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 0%
- Cancelled
- 2 min
- Median arrival delay
Based on 189 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
AS 2354 arrived on time 89% of the time on Saturdays and just 67% on Fridays. That gap is worth planning around.
A bit behind the SEA–PDX route.
AS 2354 arrived on time 79% of the time, versus 83% across the SEA–PDX route.
It basically never cancels.
Out of 189 scheduled flights, only 0.0% were cancelled.
Trending in the right direction.
AS 2354 arrived on time 84% of the time over the last three months in the data, compared with 76% in the three months before that.
The breakdown
- Mon74%(23 flights)
- Tue81%(31 flights)
- Wed88%(34 flights)
- Thu76%(21 flights)
- Fri67%(21 flights)
- Sat89%(35 flights)
- Sun71%(24 flights)
- 12–3 PM81%(134 flights)
- 3–6 PM82%(49 flights)
- 6–9 PM—(6 flights)
Jun 79% → May 78% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 29 |
| July 2025 | 81% | 31 |
| August 2025 | 80% | 20 |
| October 2025 | 68% | 28 |
| November 2025 | 75% | 28 |
| January 2026 | 100% | 11 |
| May 2026 | 78% | 23 |
- Departures on time
- 87%
- Diverted
- 0%
- Flights flown
- 189
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 189 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.