Flight Reliability
AS 2291 · Alaska Airlines
Seattle → PUW (SEA–PUW)91% of its flights flew this route. The rest (PDX–SEA, SJC–LAX) are included in these numbers.
- 84%
- Arrive within 15 minutes
- 1 min early
- Average arrival delay
- 1.1%
- Cancelled
- 8 min early
- Median arrival delay
Based on 189 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
AS 2291 departing between 12–3 PM arrived on time 87% of the time, versus 50% between 9 PM–12 AM.
Sunday scaries are real for this one.
AS 2291 arrived on time 92% of the time on Thursdays and just 72% on Sundays. That gap is worth planning around.
A bit ahead of the Alaska Airlines network.
AS 2291 arrived on time 84% of the time, versus 80% across the Alaska Airlines network.
Trending in the right direction.
AS 2291 arrived on time 90% of the time over the last three months in the data, compared with 77% in the three months before that.
The breakdown
- Mon86%(29 flights)
- Tue85%(26 flights)
- Wed83%(24 flights)
- Thu92%(26 flights)
- Fri81%(26 flights)
- Sat89%(27 flights)
- Sun72%(29 flights)
- 6–9 AM—(1 flights)
- 9 AM–12 PM86%(62 flights)
- 12–3 PM87%(108 flights)
- 6–9 PM—(6 flights)
- 9 PM–12 AM50%(10 flights)
Nov 76% → May 83% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 76% | 29 |
| December 2025 | 57% | 14 |
| January 2026 | 87% | 31 |
| February 2026 | 86% | 28 |
| March 2026 | 90% | 30 |
| April 2026 | 97% | 30 |
| May 2026 | 83% | 12 |
- Departures on time
- 87%
- Diverted
- 0%
- Flights flown
- 187
- Months covered
- 9
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.