Best time to fly out of Sitka Rocky Gutierrez (SIT)

The early-flight folk wisdom holds up at Sitka Rocky Gutierrez: departures in the 6–8am band left on time 92.2% of the time, against 79.9% in the 6–8pm band. These are historical odds, not forecasts. The records say what happened on this schedule over three years; they know nothing about tomorrow’s thunderstorm.

Data through June 2026 · Bureau of Transportation Statistics

On-time rate by hour and day

On this page, “on time” means a departure that pushed back less than 15 minutes behind its scheduled time — the Bureau of Transportation Statistics definition, and the one airlines are held to.

Share of departures that left on time, by hour band and day of week.
Departure time MonTueWedThuFriSatSun
Before 6am
6–8am 91 93 92 95 95 90 91
8–10am
10am–12pm 88 85 89 94 94 88 89
12–2pm
2–4pm
4–6pm
6–8pm 77 77 81 81 79 82 83
8–10pm
10pm–12am
fewer left on time more left on time

The steadiest stretch at SIT was 6–8am — 92.2% of departures left on time across 1,531 flights. The weakest was 6–8pm at 79.9%. 6–8am departures from SIT left on time 92.2% of the time across 1,531 flights; 6–8pm departures, 79.9% across 1,065. That is a gap of 12.3 points, and it is the whole case for the early flight.

The year at SIT

January was the hard month at SIT: 79.8% of departures left on time, across 276 flights. April was the easy one at 89.6%. Each month pools three years of that month, so a single bad week does not decide it.

Share of departures that left on time, by calendar month. Best month in green, worst in amber. The hairline sits at the overall rate, 85.5%.
Departure on-time share at SIT by calendar month
Month Share departures that left on time Flights
January 79.8% 276
February 86.9% 255
March 84.9% 279
April 89.6% 270
May 88.4% 382
June 84.1% 473
July 86.3% 527
August 81.2% 503
September 86.2% 378
October 87% 282
November 88.3% 267
December 85.2% 274

Airlines at SIT

Every airline with at least 100 departures from SIT, busiest first. These are that airline’s departures from this airport only — its record across the country sits on its own page.

Airline Left on time Typical delay Cancelled Departures
Alaska Airlines 85.8% 63 min 1.6% 4,007
SkyWest Airlines 76.8% 191 min 2.5% 159

What delays out of SIT were put down to

Airlines file a reason with every arrival running 15 minutes late or more. Across 638 flights that departed SIT and ran 15 minutes late or more, the delay minutes break down with 46.4% put down to late-arriving aircraft and 32.6% to airline operations.

Late-arriving aircraft 46.4% Airline operations 32.6% Air traffic & airport volume 10.4% Severe weather 9.2% Security 1.5%
  • Late-arriving aircraft 46.4%
  • Airline operations 32.6%
  • Air traffic & airport volume 10.4%
  • Severe weather 9.2%
  • Security 1.5%

Late-arriving aircraft is the knock-on category: the plane came in late, so it went out late again. It is why a 7am problem in Newark is still a problem in Denver at dinnertime, and why it is usually the biggest slice on the bar.

If you are connecting through SIT

Of 4,166 scheduled arrivals into SIT, 76.5% reached the gate less than 15 minutes behind schedule. Of the 883 arrivals that ran late, 60.9% were no more than 45 minutes behind — which is the difference between a tight connection and a new boarding pass.

Work out a specific layover — pick the airport and the minutes you have, and the tool reads the same arrival records back as a share.

Busiest routes out of SIT

Ranked by flights, with the share that arrived on time at the far end. Where a route carries enough flights for a page of its own the chip goes there; otherwise it goes to the destination airport.

SIT in one number

Sitka Rocky Gutierrez (SIT)

Rank 217 of 363 US airports by departures. Steadiest stretch of the day: 6–8am. Hardest month: January.

July 2023–June 2026 · 4,098 departures flown

85.5% of departures left on time

Questions about SIT

What is the best time of day to fly out of Sitka Rocky Gutierrez?
6–8am. Departures in that band left on time 92.2% of the time across 1,531 flights, July 2023 through June 2026 — the best of the ten bands in the day. The 6–8pm band was the weakest at 79.9%.
Is the early flight out of SIT really more reliable?
6–8am departures from SIT left on time 92.2% of the time across 1,531 flights; 6–8pm departures, 79.9% across 1,065. That is a gap of 12.3 points, and it is the whole case for the early flight.
What is the worst month to fly out of SIT?
January: 79.8% of the departures that flew left on time, with 276 scheduled. April was the other end of the year at 89.6%. Each figure pools three years of that calendar month.
Which airline is most on time at SIT?
Alaska Airlines — 85.8% of its 4,007 departures from SIT left on time. SkyWest Airlines sat at the other end at 76.8% over 159 flights. Only airlines with at least 100 departures here are ranked.
How often are flights cancelled at SIT?
1.6% of scheduled departures were cancelled over July 2023 through June 2026. Cancellations are counted against everything scheduled, not against everything that flew — a rate that looks small still adds up to real people in a rebooking line.