Route Reliability
Seattle → Sitka
SEA–SIT · 861 miles · Seattle–Tacoma International Airport to Sitka Rocky Gutierrez Airport
66
Usually Fine
WanderNerd Reliability Score
- 63%
- Arrive within 15 minutes
- 14 min
- Average arrival delay
- 0.4%
- Cancelled
- 243
- Flights in the data
Data through May 2026.
Alaska Airlines is the only airline in this data on this route, arriving on time 63% of the time across 243 flights. No comparison to make.
What the data says
The late departure is the smart one here.
SEA–SIT flights departing between 9 PM–12 AM arrived on time 71% of the time, versus 58% between 9 AM–12 PM.
Thursdays have been rough.
SEA–SIT flights arrived on time 77% of the time on Tuesdays and just 53% on Thursdays. That gap is worth planning around.
Flights on this route
The breakdown
- Mon56%(34 flights)
- Tue77%(34 flights)
- Wed71%(35 flights)
- Thu53%(34 flights)
- Fri57%(35 flights)
- Sat68%(34 flights)
- Sun60%(35 flights)
- 9 AM–12 PM58%(144 flights)
- 9 PM–12 AM71%(97 flights)
82%
May
Jun 57% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 57% | 60 |
| July 2025 | 52% | 60 |
| August 2025 | 59% | 49 |
| September 2025 | 80% | 30 |
| May 2026 | 82% | 39 |
Keep nerding
Based on 243 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.