OnTimeStats

Historical on-time performance

Juneau to Sitka

95 miData through May 2026Source: US DOT · BTS

Flights on JNU–SIT arrive on time 82% of the time over the last 12 months.

On-time rate82%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled2.1%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-time82%
    Medianon time
    p9030 min
    Cancel2.1%
    Flights725

Why flights run late

Delay causes

  • Airline20%
  • Weather14%
  • Air traffic (NAS)11%
  • Late aircraft55%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline13%
  • Weather87%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 15 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 JNU → SIT

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

Best time of day

Middays are the most reliable time of day to fly this route — 88% on time.

  • Middays88% on time · p90 10 min · 378 flights
  • Mornings84% on time · p90 20 min · 716 flights
  • Overnights83% on time · p90 25 min · 1,087 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 80% to 89% on time.

  • Fridays89% on time · p90 15 min · 314 flights
  • Saturdays87% on time · p90 20 min · 314 flights
  • Tuesdays84% on time · p90 25 min · 312 flights
  • Sundays83% on time · p90 25 min · 314 flights
  • Wednesdays83% on time · p90 25 min · 308 flights
  • Mondays82% on time · p90 30 min · 310 flights
  • Thursdays80% on time · p90 25 min · 309 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.