Historical on-time performance
Grand Rapids to Sanford
1,001 miData through Dec 2025Source: US DOT · BTS
Flights on GRR–SFB arrive on time 68% of the time over the last 12 months.
On-time rate68%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 350 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Allegiant AirOn-time68%Medianon timep9065 minCancel0.0%Flights350
Why flights run late
Delay causes
- Airline22%
- Weather14%
- Air traffic (NAS)21%
- Late aircraft43%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly GRR → SFB
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 36% to 85% on time.
- Middays85% on time · p90 25 min · 143 flights · limited
- Mornings82% on time · p90 35 min · 468 flights
- Afternoons69% on time · p90 65 min · 329 flights
- Evenings67% on time · p90 65 min · 139 flights · limited
- Overnights36% on time · p90 140 min · 56 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 81% on time.
- Tuesdays81% on time · p90 40 min · 103 flights · limited
- Fridays77% on time · p90 55 min · 176 flights · limited
- Saturdays76% on time · p90 55 min · 194 flights · limited
- Sundays74% on time · p90 55 min · 195 flights · limited
- Thursdays73% on time · p90 70 min · 192 flights · limited
- Wednesdays72% on time · p90 50 min · 102 flights · limited
- Mondays71% on time · p90 65 min · 173 flights · limited
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