OnTimeStats

Historical on-time performance

Detroit to Savannah

705 miData through May 2026Source: US DOT · BTS

Flights on DTW–SAV arrive on time 79% of the time over the last 12 months.

On-time rate79%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.9%of scheduled flights

based on 310 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.

  • Delta Air Lines
    On-time89%
    Medianon time
    p9010 min
    Cancel2.3%
    Flights218
  • SkyWest Airlines
    On-time58%
    Median5 min
    p9060 min
    Cancel1.1%
    Flights92

Why flights run late

Delay causes

  • Airline71%
  • Weather9%
  • Air traffic (NAS)13%
  • Late aircraft7%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline83%
  • Weather17%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 6 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 → SAV

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 87% on time.

  • Middays87% on time · p90 15 min · 470 flights
  • Mornings85% on time · p90 20 min · 365 flights
  • Afternoons63% on time · p90 65 min · 271 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 89% on time.

  • Wednesdays89% on time · p90 15 min · 160 flights · limited
  • Tuesdays83% on time · p90 35 min · 156 flights · limited
  • Mondays82% on time · p90 30 min · 159 flights · limited
  • Thursdays81% on time · p90 35 min · 156 flights · limited
  • Fridays79% on time · p90 25 min · 156 flights · limited
  • Saturdays76% on time · p90 25 min · 164 flights · limited
  • Sundays72% on time · p90 75 min · 155 flights · limited

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.