OnTimeStats

Historical on-time performance

Sanford to Flint

988 miData through May 2026Source: US DOT · BTS

Flights on SFB–FNT arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights

based on 234 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Allegiant Air
    On-time72%
    Medianon time
    p9070 min
    Cancel0.4%
    Flights234

Why flights run late

Delay causes

  • Airline59%
  • Weather3%
  • Air traffic (NAS)9%
  • Late aircraft30%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline0%
  • Weather100%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 1 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 SFB → FNT

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

Best time of day

Mornings are the most reliable time of day to fly this route — 90% on time.

  • Mornings90% on time · p90 10 min · 151 flights · limited
  • Middays82% on time · p90 30 min · 365 flights
  • Evenings66% on time · p90 70 min · 211 flights
  • Afternoons63% on time · p90 100 min · 125 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 65% to 81% on time.

  • Sundays81% on time · p90 40 min · 127 flights · limited
  • Thursdays81% on time · p90 30 min · 126 flights · limited
  • Saturdays77% on time · p90 50 min · 163 flights · limited
  • Wednesdays75% on time · p90 55 min · 133 flights · limited
  • Fridays71% on time · p90 75 min · 136 flights · limited
  • Mondays65% on time · p90 70 min · 135 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.