OnTimeStats

Historical on-time performance

Oakland to Los Angeles

337 miData through May 2026Source: US DOT · BTS

Flights on OAK–LAX arrive on time 80% of the time over the last 12 months.

On-time rate80%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights

based on 2,122 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time80%
    Medianon time
    p9030 min
    Cancel1.0%
    Flights2,122

Why flights run late

Delay causes

  • Airline31%
  • Weather0%
  • Air traffic (NAS)12%
  • Late aircraft57%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline76%
  • Weather10%
  • Air traffic (NAS)14%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 21 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 OAK → LAX

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 — 91% on time.

  • Mornings91% on time · p90 10 min · 2,916 flights
  • Middays86% on time · p90 20 min · 2,180 flights
  • Evenings76% on time · p90 40 min · 1,704 flights
  • Afternoons76% on time · p90 35 min · 1,429 flights
  • Overnights69% on time · p90 55 min · 819 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 78% to 88% on time.

  • Tuesdays88% on time · p90 15 min · 1,241 flights
  • Saturdays87% on time · p90 20 min · 987 flights
  • Wednesdays87% on time · p90 20 min · 1,246 flights
  • Mondays83% on time · p90 30 min · 1,396 flights
  • Thursdays80% on time · p90 30 min · 1,394 flights
  • Fridays79% on time · p90 30 min · 1,412 flights
  • Sundays78% on time · p90 35 min · 1,372 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.