Sitka (SIT) to Seattle (SEA): On-Time Performance
Data through July 2026
Sitka (SIT) to Seattle (SEA) is a thinner route than most in this dataset — 244 departures over the past year, roughly 5 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 71% arrived on time, noticeably below the national average of 78%.
- On-time
- 71%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 0.67
- last 12 months
- Duration
- 2h 23m
- scheduled
- Distance
- 861 mi
Best airline from SIT to SEA
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 76% | 43 min | 4.3% | 70 |
| Alaska Airlines | 70% | 16 min | 0.9% | 542 |
Monthly on-time trend
Best time to fly from SIT to SEA
Aim for departures around 7 a.m. (83% on-time); avoid 1 p.m. departures (59%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 75% | 13 min |
| Tuesday | 72% | 24 min |
| Wednesday | 69% | 21 min |
| Thursday | 75% | 17 min |
| Friday | 66% | 30 min |
| Saturdaybest | 81% | 9 min |
| Sunday | 60% | 18 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft34%
- Airline operations40%
- National airspace system14%
- Weather7%
- Security5%
Frequently asked questions
- How often are flights from SIT to SEA delayed?
- 29% of SIT–SEA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 19 minutes.
- Which airline is most reliable from SIT to SEA?
- SkyWest Airlines has the best on-time record on this route at 76%, based on 70 flights. 2 airlines flew SIT–SEA frequently enough to compare in this period.
- What is the best time of day to fly from SIT to SEA?
- Departures around 7 a.m. have the best record (83% on-time), while departures around 1 p.m. have the worst (59%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SIT to SEA?
- The scheduled SIT–SEA flight time averages 2h 23m over 861 miles. Actual arrival times vary — flights on this route land 15+ minutes late 29% of the time.
- How often are SIT to SEA flights cancelled?
- 1.3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What day of the week is most reliable for SIT to SEA?
- Saturday flights have the best record at 81% on-time. Day-of-week differences on this route are meaningful — Sunday trails at 60%.
Explore related pages
More routes from SIT
Other ways to fly to Seattle (SEA)
Related guides
Based on 612 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.