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Route Reliability

Sanford → Grand Rapids

SFB–GRR · 1,001 miles · Orlando Sanford International Airport to Gerald R. Ford International Airport

74
Usually Fine
WanderNerd Reliability Score
71%
Arrive within 15 minutes
18 min
Average arrival delay
0.2%
Cancelled
412
Flights in the data

Data through May 2026.

Allegiant Air is the only airline in this data on this route, arriving on time 71% of the time across 412 flights. No comparison to make.

What the data says

Morning-you made the right choice.

SFB–GRR flights departing between 6–9 AM arrived on time 90% of the time, versus 52% between 3–6 PM.

Mondays have been rough.

SFB–GRR flights arrived on time 88% of the time on Wednesdays and just 61% on Mondays. That gap is worth planning around.

It basically never cancels.

Out of 412 scheduled flights, only 0.2% were cancelled.

Trending in the right direction.

SFB–GRR flights arrived on time 86% of the time over the last three months in the data, compared with 70% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon61%(59 flights)
  • Tue83%(42 flights)
  • Wed88%(48 flights)
  • Thu77%(64 flights)
  • Fri71%(59 flights)
  • Sat64%(72 flights)
  • Sun63%(67 flights)
On-time by departure window
  • 6–9 AM90%(59 flights)
  • 9 AM–12 PM86%(101 flights)
  • 12–3 PM58%(59 flights)
  • 3–6 PM52%(83 flights)
  • 6–9 PM69%(109 flights)
On-time trend by month
93%
May

Jun 68% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%34
July 202551%35
August 202560%25
September 202570%20
October 202565%34
November 202566%29
December 202569%45
January 202659%32
February 202681%36
March 202678%51
April 202686%42
May 202693%28

Same trip, other airports

Keep nerding

Based on 412 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.