OnTimeStats

Historical on-time performance

San Francisco to Kansas City

1,499 miData through Dec 2025Source: US DOT · BTS

Flights on SFO–MCI arrive on time 82% of the time over the last 12 months.

On-time rate82%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights

based on 249 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • United Airlines
    On-time73%
    Medianon time
    p9030 min
    Cancel0.0%
    Flights30
  • SkyWest Airlines
    On-time84%
    Medianon time
    p9020 min
    Cancel1.4%
    Flights219

Why flights run late

Delay causes

  • Airline35%
  • Weather0%
  • Air traffic (NAS)33%
  • Late aircraft32%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SFO → MCI

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 — 88% on time.

  • Mornings88% on time · p90 15 min · 252 flights
  • Evenings82% on time · p90 30 min · 510 flights
  • Middays77% on time · p90 40 min · 315 flights
  • Afternoons75% on time · p90 25 min · 101 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 78% to 87% on time.

  • Tuesdays87% on time · p90 15 min · 167 flights · limited
  • Saturdays87% on time · p90 20 min · 169 flights · limited
  • Fridays82% on time · p90 20 min · 169 flights · limited
  • Sundays79% on time · p90 25 min · 170 flights · limited
  • Thursdays79% on time · p90 40 min · 168 flights · limited
  • Wednesdays78% on time · p90 40 min · 167 flights · limited
  • Mondays78% on time · p90 25 min · 168 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.