SEA to SIT flight delays
Seattle, WA (SEA) Sitka, AK (SIT) · 861 miles
243 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
65.42%
Arrived on time
Within 15 minutes of schedule
0.41%
Cancelled
Share of scheduled flights
51 min
When late, late by
Average across delayed arrivals
19 min
Delay per flight
Averaged over every flight flown
What the record says about this route
This route does worse than its own airport. SEA as a whole runs 13.5 points more punctual than these flights, which points at something specific to the route — the time of day it is scheduled, or the aircraft that feed it — rather than the airport.
This is a late route. Flights from Seattle to Sitka miss their scheduled arrival often enough that a tight connection at the far end is a connection at risk.
Only Alaska Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
This is a thin route — 243 flights across the whole period. On a route this infrequent a cancellation is far more costly than the rate suggests, because the next departure may not be the same day.
Which airline should you fly on this route?
Over January 2025 – August 2026, Alaska Airlines arrived on time most often on SEA to SIT. Flights ran closest to schedule in May and worst in July.
Every airline on SEA to SIT
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Alaska Airlines | 243 | 65.42% | 0.41% | 51 min | D |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
SIT to SEA Sitka back to Seattle 69.04% on time DOther routes from Seattle
Common questions
Are flights from Seattle to Sitka usually delayed?
65.42% of flights on the SEA to SIT route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from Seattle to Sitka?
Only Alaska Airlines appears in the published record on this route, with 243 flights and 65.42% arriving on time.
How often are SEA to SIT flights cancelled?
0.41% of scheduled flights did not operate — about 4 in every thousand. That is in the normal range.
When SEA to SIT flights are late, how late are they?
About 51 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on SEA to SIT during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →