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

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

Historically, 68.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 406 flights.

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

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

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%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

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%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

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

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

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 reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

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.