Flight Reliability
AS 221 · Alaska Airlines
Seattle → Honolulu (SEA–HNL)84% of its flights flew this route. The rest (LAX–SFO, ABQ–SEA) are included in these numbers.
- 62%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 0%
- Cancelled
- 5 min
- Median arrival delay
Based on 183 historical flights. Data through May 2026.
What the data says
Morning flights do better here.
AS 221 departing between 9 AM–12 PM arrived on time 70% of the time, versus 46% between 3–6 PM.
Wednesdays have been rough.
AS 221 arrived on time 69% of the time on Mondays and just 52% on Wednesdays. That gap is worth planning around.
A bit behind the SEA–HNL route.
AS 221 arrived on time 62% of the time, versus 66% across the SEA–HNL route.
Well behind the Alaska Airlines network.
AS 221 arrived on time 62% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon69%(26 flights)
- Tue68%(25 flights)
- Wed52%(25 flights)
- Thu68%(25 flights)
- Fri63%(27 flights)
- Sat60%(25 flights)
- Sun56%(27 flights)
- 6–9 AM63%(48 flights)
- 9 AM–12 PM70%(47 flights)
- 3–6 PM46%(11 flights)
- 6–9 PM60%(74 flights)
Jun 46% → May 45% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 46% | 11 |
| December 2025 | 53% | 15 |
| January 2026 | 63% | 30 |
| February 2026 | 71% | 28 |
| March 2026 | 50% | 30 |
| April 2026 | 90% | 29 |
| May 2026 | 45% | 31 |
- Departures on time
- 75%
- Diverted
- 1.6%
- Flights flown
- 180
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 183 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.