OnTimeStats

Historical on-time performance

Detroit to Lexington KY

296 miData through May 2026Source: US DOT · BTS

Flights on DTW–LEX arrive on time 75% of the time over the last 12 months.

On-time rate75%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights

based on 609 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.

  • Republic Airways
    On-time86%
    Medianon time
    p9020 min
    Cancel0.0%
    Flights154
  • SkyWest Airlines
    On-time71%
    Medianon time
    p9085 min
    Cancel2.0%
    Flights455

Why flights run late

Delay causes

  • Airline78%
  • Weather12%
  • Air traffic (NAS)8%
  • Late aircraft2%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather89%
  • Air traffic (NAS)11%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 9 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 DTW → LEX

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 63% to 84% on time.

  • Afternoons84% on time · p90 35 min · 967 flights
  • Mornings83% on time · p90 30 min · 356 flights
  • Overnights81% on time · p90 35 min · 831 flights
  • Middays81% on time · p90 45 min · 159 flights · limited
  • Evenings63% on time · p90 105 min · 115 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 78% to 85% on time.

  • Tuesdays85% on time · p90 35 min · 347 flights
  • Saturdays85% on time · p90 25 min · 307 flights
  • Wednesdays83% on time · p90 30 min · 348 flights
  • Thursdays83% on time · p90 35 min · 358 flights
  • Mondays82% on time · p90 30 min · 356 flights
  • Fridays79% on time · p90 50 min · 359 flights
  • Sundays78% on time · p90 50 min · 353 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.