BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
GRR→SFB

Grand Rapids, MI (GRR) to Sanford, FL (SFB) flight delay odds

68.5% of 406 official scheduled GRR-to-SFB flights arrived on time; 23.6% arrived at least 30 minutes late and 0.5% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
68.5%arrived on time
23.6%30+ min late
0.5%cancelled
406scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late13.3%all scheduled flights
120+ minutes late4.7%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+16.9 mincompleted flights

Which departure time was most reliable for GRR to SFB?

Among qualifying GRR-to-SFB departure window results, Early morning had the highest on-time rate: 83.3% of 84 flights. Evening was lowest at 53.0% across 66 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning8483.3%8.3%0.0%
Late morning6978.3%13.0%1.4%
Afternoon16968.0%24.9%0.6%
Evening6653.0%37.9%0.0%

Which weekday was most reliable for GRR to SFB?

Among qualifying GRR-to-SFB weekday results, Wednesday had the highest on-time rate: 83.3% of 48 flights. Monday was lowest at 59.3% across 59 flights.

DayFlightsOn time30+ minCancelled
Monday5959.3%33.9%1.7%
Tuesday4165.9%19.5%0.0%
Wednesday4883.3%10.4%0.0%
Thursday6476.6%15.6%0.0%
Friday6068.3%23.3%1.7%
Saturday6867.6%27.9%0.0%
Sunday6660.6%30.3%0.0%

Which airline was most reliable for GRR to SFB?

Only Allegiant Air met the GRR-to-SFB airline threshold: 68.5% of 406 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Allegiant Air40668.5%23.6%0.5%

Which month was most reliable for GRR to SFB?

Among qualifying GRR-to-SFB month results, February 2026 had the highest on-time rate: 91.7% of 36 flights. July 2025 was lowest at 37.1% across 35 flights.

MonthFlightsOn time30+ minCancelled
July 20253537.1%54.3%0.0%
August 20252548.0%40.0%0.0%
September 20252065.0%20.0%0.0%
October 20253470.6%23.5%0.0%
November 20252955.2%34.5%0.0%
December 20254568.9%22.2%0.0%
January 20263253.1%34.4%0.0%
February 20263691.7%8.3%0.0%
March 20265276.9%11.5%1.9%
April 20264283.3%11.9%0.0%
May 20262889.3%7.1%0.0%
June 20262867.9%28.6%3.6%

What drove GRR to SFB delay minutes?

Late aircraft was the largest recorded GRR-to-SFB delay category, accounting for 45.9% of 10,014 BTS-attributed delay minutes during July 2025–June 2026.

Airline28.8%
Late aircraft45.9%
National airspace15.5%
Weather9.8%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.