OnTimeStats

Historical on-time performance

Kansas City to Los Angeles

1,363 miData through Dec 2025Source: US DOT · BTS

Flights on MCI–LAX arrive on time 81% of the time over the last 12 months.

On-time rate81%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights

based on 900 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Delta Air Linesbest
    On-time90%
    Medianon time
    p9010 min
    Cancel1.0%
    Flights511
  • Southwest Airlines
    On-time69%
    Median5 min
    p9040 min
    Cancel0.0%
    Flights359
  • Spirit Airlines
    On-time73%
    Medianon time
    p9060 min
    Cancel3.3%
    Flights30

Why flights run late

Delay causes

  • Airline30%
  • Weather3%
  • Air traffic (NAS)10%
  • Late aircraft57%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly MCI → LAX

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

Best time of day

Mornings are the most reliable time of day to fly this route — 90% on time.

  • Mornings90% on time · p90 10 min · 1,141 flights
  • Afternoons82% on time · p90 30 min · 1,256 flights
  • Middays77% on time · p90 35 min · 256 flights
  • Evenings65% on time · p90 50 min · 367 flights
  • Overnights65% on time · p90 60 min · 896 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 82% on time.

  • Thursdays82% on time · p90 30 min · 591 flights
  • Wednesdays80% on time · p90 30 min · 532 flights
  • Tuesdays79% on time · p90 30 min · 549 flights
  • Mondays78% on time · p90 35 min · 586 flights
  • Saturdays77% on time · p90 45 min · 522 flights
  • Fridays77% on time · p90 40 min · 585 flights
  • Sundays74% on time · p90 40 min · 551 flights
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Keep exploring

Related pages

Delay predictorfor this route→MCI airportKansas City→LAX airportLos Angeles→American Airlines on this routecarrier detail→American Airlinesairline profile→

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.