OnTimeStats

Historical on-time performance

Los Angeles to Anchorage

2,345 miData through Dec 2025Source: US DOT · BTS

Flights on LAX–ANC arrive on time 84% of the time over the last 12 months.

On-time rate84%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 194 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Alaska Airlines
    On-time84%
    Medianon time
    p9025 min
    Cancel0.0%
    Flights194

Why flights run late

Delay causes

  • Airline15%
  • Weather0%
  • Air traffic (NAS)45%
  • Late aircraft40%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly LAX → ANC

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 81% to 87% on time.

  • Overnights87% on time · p90 20 min · 52 flights · limited
  • Evenings81% on time · p90 25 min · 960 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 85% on time.

  • Saturdays85% on time · p90 20 min · 195 flights · limited
  • Sundays84% on time · p90 25 min · 159 flights · limited
  • Wednesdays82% on time · p90 20 min · 125 flights · limited
  • Tuesdays82% on time · p90 20 min · 123 flights · limited
  • Thursdays82% on time · p90 25 min · 156 flights · limited
  • Fridays81% on time · p90 20 min · 155 flights · limited
  • Mondays74% on time · p90 30 min · 145 flights · limited
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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.