Historical on-time performance
Sanford to Grand Rapids
1,001 miData through May 2026Source: US DOT · BTS
Flights on SFB–GRR arrive on time 70% of the time over the last 12 months.
On-time rate70%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.3%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
- Allegiant AirOn-time70%Medianon timep9060 minCancel0.3%Flights310
Why flights run late
Delay causes
- Airline43%
- Weather16%
- Air traffic (NAS)9%
- Late aircraft33%
- 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 → GRR
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 — 89% on time.
- Mornings89% on time · p90 25 min · 134 flights · limited
- Afternoons78% on time · p90 55 min · 121 flights · limited
- Middays77% on time · p90 45 min · 469 flights
- Overnights63% on time · p90 100 min · 126 flights · limited
- Evenings63% on time · p90 90 min · 310 flights
Best day of week
Tuesdays are the most reliable day to fly this route — 85% on time.
- Tuesdays85% on time · p90 25 min · 110 flights · limited
- Wednesdays75% on time · p90 50 min · 111 flights · limited
- Saturdays72% on time · p90 65 min · 199 flights · limited
- Sundays72% on time · p90 70 min · 195 flights · limited
- Mondays72% on time · p90 60 min · 174 flights · limited
- Fridays70% on time · p90 65 min · 179 flights · limited
- Thursdays70% on time · p90 75 min · 192 flights · limited
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