OnTimeStats

Historical on-time performance

Harrisburg to Sanford

827 miData through May 2026Source: US DOT · BTS

Flights on MDT–SFB arrive on time 54% of the time over the last 12 months.

On-time rate54%arrived within 15 min
p90 delay150 min1 in 10 flights is worse (tail risk)
Cancelled3.3%of scheduled flights

based on 61 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Allegiant Air
    On-time54%
    Medianon time
    p90150 min
    Cancel3.3%
    Flights61

Why flights run late

Delay causes

  • Airline45%
  • Weather1%
  • Air traffic (NAS)9%
  • Late aircraft46%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline50%
  • Weather50%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 2 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 MDT → SFB

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 53% to 81% on time.

  • Mornings81% on time · p90 35 min · 200 flights
  • Middays79% on time · p90 40 min · 122 flights · limited
  • Overnights57% on time · p90 135 min · 266 flights
  • Afternoons53% on time · p90 100 min · 144 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 55% to 76% on time.

  • Mondays76% on time · p90 35 min · 140 flights · limited
  • Fridays67% on time · p90 75 min · 141 flights · limited
  • Thursdays66% on time · p90 90 min · 155 flights · limited
  • Sundays66% on time · p90 95 min · 160 flights · limited
  • Saturdays55% on time · p90 95 min · 114 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.