Airport reliability
Sitka (SIT) on-time performance
How reliably flights leave Sitka, AK (SIT) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Sitka, AK1,332 departures in 12 months
- Departures on time
- 81.1% U.S. average 75.6%
- Cancelled
- 2.8% U.S. average 1.9%
- 60+ minutes late
- 5.2% U.S. average 8.1%
- Scheduled departures
- 1,332 12 months
What this means
SIT departures beat the U.S. average.
- 81.1% of the 1,332 scheduled departures from Sitka (SIT) arrived at their destination on time, 5.5 points higher than the U.S. average of 75.6%.
- 2.8% of departures were cancelled (U.S. average 1.9%), and 5.2% arrived an hour or more late.
- Flights arriving at SIT were on time 77.3% of the time.
- Over the last 3 years, April was the most reliable month for departures from SIT (88.9% on time) and January the least reliable (73.6%).
- Cancellations peaked in January, when 4.7% of flights were cancelled.
- Flights scheduled to depart 6 am to 7 am were the most punctual (86.7% on time); flights scheduled to depart 7 pm to 8 pm were the least (74.9%).
Airlines at SIT
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| Alaska Airlines | 81.1% | 2.8% | 5.2% | 64 min | 1,332 |
Tap a heading to sort.
On-time rate by departure hour
Share of scheduled flights on time SIT average 81.1%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing 6 am to 7 am | 86.7% | 362 |
| Departing 7 am to 8 am | 82.7% | 98 |
| Departing 10 am to 11 am | Insufficient sample | 29 |
| Departing 11 am to noon | 82.4% | 336 |
| Departing noon to 1 pm | Insufficient sample | 1 |
| Departing 1 pm to 2 pm | 75.0% | 72 |
| Departing 2 pm to 3 pm | 73.6% | 72 |
| Departing 7 pm to 8 pm | 74.9% | 362 |
Best and worst months at SIT
Share of scheduled flights on time 12-month average 81.1%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 73.6% | 276 |
| February | 84.3% | 255 |
| March | 79.2% | 279 |
| April | 88.9% | 270 |
| May | 87.7% | 382 |
| June | 81.6% | 473 |
| July | 82.3% | 496 |
| August | 73.9% | 459 |
| September | 84.4% | 378 |
| October | 84.8% | 282 |
| November | 86.1% | 267 |
| December | 75.5% | 274 |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 83.3% | 120 |
| Oct 2025 | 83.3% | 96 |
| Nov 2025 | 85.4% | 89 |
| Dec 2025 | 64.4% | 90 |
| Jan 2026 | 67.4% | 92 |
| Feb 2026 | 77.4% | 84 |
| Mar 2026 | 65.6% | 93 |
| Apr 2026 | 86.7% | 90 |
| May 2026 | 90.8% | 131 |
| Jun 2026 | 86.7% | 150 |
| Jul 2026 | 90.3% | 155 |
| Aug 2026 | 78.2% | 142 |
Busiest routes from SIT
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Juneau (JNU) | 80.8% | 3.9% | 1 | 725 |
| Ketchikan (KTN) | 84.1% | 1.6% | 1 | 364 |
| Seattle (SEA) | 77.4% | 1.2% | 1 | 243 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Scheduled nonstop domestic departures from Sitka, AK (SIT) by airlines that report to the DOT.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.