OnTimeStats

Historical on-time performance

Savannah to Detroit

706 miData through Dec 2025Source: US DOT · BTS

Flights on SAV–DTW arrive on time 80% of the time over the last 12 months.

On-time rate80%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.8%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

  • Delta Air Linesbest
    On-time89%
    Medianon time
    p9015 min
    Cancel0.6%
    Flights157
  • SkyWest Airlines
    On-time64%
    Median5 min
    p9065 min
    Cancel1.1%
    Flights92

Why flights run late

Delay causes

  • Airline74%
  • Weather17%
  • Air traffic (NAS)2%
  • Late aircraft7%
  • 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 SAV → DTW

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

Best time of day

Middays are the most reliable time of day to fly this route — 85% on time.

  • Middays85% on time · p90 20 min · 689 flights
  • Evenings61% on time · p90 80 min · 232 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 66% to 85% on time.

  • Tuesdays85% on time · p90 25 min · 128 flights · limited
  • Wednesdays85% on time · p90 20 min · 132 flights · limited
  • Mondays85% on time · p90 20 min · 131 flights · limited
  • Thursdays83% on time · p90 30 min · 127 flights · limited
  • Fridays81% on time · p90 40 min · 128 flights · limited
  • Sundays67% on time · p90 110 min · 127 flights · limited
  • Saturdays66% on time · p90 45 min · 151 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.