OnTimeStats

Historical on-time performance

Kansas City to Atlanta

692 miData through May 2026Source: US DOT · BTS

Flights on MCI–ATL arrive on time 86% of the time over the last 12 months.

On-time rate86%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights

based on 3,112 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-time88%
    Medianon time
    p9015 min
    Cancel1.6%
    Flights2,775
  • Southwest Airlines
    On-time76%
    Medianon time
    p9040 min
    Cancel0.3%
    Flights337

Why flights run late

Delay causes

  • Airline34%
  • Weather5%
  • Air traffic (NAS)19%
  • Late aircraft42%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline70%
  • Weather30%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 46 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 MCI → ATL

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 — 90% on time.

  • Mornings90% on time · p90 10 min · 3,541 flights
  • Middays86% on time · p90 20 min · 2,844 flights
  • Afternoons81% on time · p90 30 min · 1,541 flights
  • Evenings80% on time · p90 35 min · 1,921 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 82% to 89% on time.

  • Tuesdays89% on time · p90 15 min · 1,362 flights
  • Thursdays88% on time · p90 15 min · 1,460 flights
  • Wednesdays87% on time · p90 15 min · 1,372 flights
  • Fridays85% on time · p90 20 min · 1,503 flights
  • Saturdays85% on time · p90 20 min · 1,200 flights
  • Mondays84% on time · p90 20 min · 1,507 flights
  • Sundays82% on time · p90 35 min · 1,447 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.