OnTimeStats

Historical on-time performance

Sitka to Juneau

95 miData through May 2026Source: US DOT · BTS

Flights on SIT–JNU arrive on time 79% of the time over the last 12 months.

On-time rate79%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled3.3%of scheduled flights

based on 725 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Alaska Airlines
    On-time79%
    Medianon time
    p9030 min
    Cancel3.3%
    Flights725

Why flights run late

Delay causes

  • Airline15%
  • Weather11%
  • Air traffic (NAS)11%
  • Late aircraft63%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline38%
  • Weather54%
  • Air traffic (NAS)8%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 24 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SIT → JNU

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

Mornings are the most reliable time of day to fly this route — 89% on time.

  • Mornings89% on time · p90 5 min · 1,087 flights
  • Evenings77% on time · p90 40 min · 1,092 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 80% to 85% on time.

  • Thursdays85% on time · p90 15 min · 309 flights
  • Wednesdays84% on time · p90 25 min · 308 flights
  • Fridays84% on time · p90 15 min · 314 flights
  • Saturdays84% on time · p90 20 min · 314 flights
  • Sundays84% on time · p90 20 min · 314 flights
  • Mondays81% on time · p90 35 min · 310 flights
  • Tuesdays80% on time · p90 25 min · 312 flights

Keep exploring

Related pages

Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.