Flight Reliability
AS 3335 · Alaska Airlines
Seattle → Boise (SEA–BOI)81% of its flights flew this route. The rest (PHX–SAN, RDM–PDX) are included in these numbers.
78
Usually Fine
WanderNerd Reliability Score
- 78%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 1.9%
- Cancelled
- 0 min
- Median arrival delay
Based on 155 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
AS 3335 departing between 12–3 PM arrived on time 79% of the time, versus 71% between 6–9 AM.
Mondays have been rough.
AS 3335 arrived on time 91% of the time on Tuesdays and just 65% on Mondays. That gap is worth planning around.
Lagging the SEA–BOI route.
AS 3335 arrived on time 78% of the time, versus 85% across the SEA–BOI route.
The breakdown
- Mon65%(23 flights)
- Tue91%(21 flights)
- Wed77%(22 flights)
- Thu83%(23 flights)
- Fri85%(20 flights)
- Sat75%(20 flights)
- Sun70%(23 flights)
- 6–9 AM71%(17 flights)
- 12–3 PM79%(126 flights)
- 3–6 PM—(9 flights)
71%
Nov
Jun 60% → Nov 71% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 60% | 30 |
| July 2025 | 84% | 31 |
| August 2025 | 81% | 31 |
| September 2025 | 90% | 30 |
| November 2025 | 71% | 17 |
- Departures on time
- 79%
- Diverted
- 0%
- Flights flown
- 152
- Months covered
- 9
Same route, other flights
Keep nerding
Based on 155 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.