OnTimeStats

Historical on-time performance

Anchorage to Juneau

571 miData through May 2026Source: US DOT · BTS

Flights on ANC–JNU arrive on time 86% of the time over the last 12 months.

On-time rate86%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights

based on 1,230 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Alaska Airlines
    On-time86%
    Medianon time
    p9025 min
    Cancel0.2%
    Flights1,230

Why flights run late

Delay causes

  • Airline47%
  • Weather18%
  • Air traffic (NAS)11%
  • Late aircraft24%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline33%
  • Weather67%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 3 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 ANC → JNU

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

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 79% to 88% on time.

  • Middays88% on time · p90 20 min · 1,092 flights
  • Mornings88% on time · p90 15 min · 1,093 flights
  • Evenings82% on time · p90 30 min · 1,088 flights
  • Afternoons79% on time · p90 25 min · 328 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 82% to 87% on time.

  • Sundays87% on time · p90 15 min · 529 flights
  • Fridays87% on time · p90 15 min · 530 flights
  • Wednesdays87% on time · p90 20 min · 515 flights
  • Saturdays85% on time · p90 20 min · 514 flights
  • Tuesdays85% on time · p90 25 min · 520 flights
  • Mondays84% on time · p90 25 min · 520 flights
  • Thursdays82% on time · p90 30 min · 521 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.