OnTimeStats

Historical on-time performance

Detroit to Buffalo

240 miData through Dec 2025Source: US DOT · BTS

Flights on DTW–BUF arrive on time 76% of the time over the last 12 months.

On-time rate76%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights

based on 863 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.

  • Delta Air Lines
    On-time77%
    Medianon time
    p9065 min
    Cancel0.0%
    Flights386
  • SkyWest Airlines
    On-time75%
    Medianon time
    p9055 min
    Cancel1.5%
    Flights477

Why flights run late

Delay causes

  • Airline65%
  • Weather15%
  • Air traffic (NAS)10%
  • Late aircraft9%
  • 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 DTW → BUF

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 — 87% on time.

  • Mornings87% on time · p90 20 min · 601 flights
  • Afternoons82% on time · p90 35 min · 905 flights
  • Middays79% on time · p90 45 min · 955 flights
  • Evenings73% on time · p90 65 min · 52 flights · limited
  • Overnights73% on time · p90 65 min · 1,082 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 84% on time.

  • Tuesdays84% on time · p90 30 min · 524 flights
  • Wednesdays82% on time · p90 30 min · 524 flights
  • Saturdays81% on time · p90 35 min · 459 flights
  • Thursdays79% on time · p90 50 min · 520 flights
  • Mondays78% on time · p90 45 min · 528 flights
  • Sundays76% on time · p90 70 min · 519 flights
  • Fridays75% on time · p90 60 min · 521 flights
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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.