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WanderNerd

Route Reliability

St. Petersburg → Grand Rapids

PIEGRR · 1,044 miles · St. Pete–Clearwater International Airport to Gerald R. Ford International Airport

82
Pretty Reliable
WanderNerd Reliability Score
76%
Arrive within 15 minutes
8 min
Average arrival delay
0.3%
Cancelled
384
Flights in the data

Data through May 2026.

Allegiant Air is the only airline in this data on this route, arriving on time 76% of the time across 384 flights. No comparison to make.

What the data says

Morning flights do better here.

PIE–GRR flights departing between 6–9 AM arrived on time 94% of the time, versus 63% between 6–9 PM.

Sunday scaries are real for this one.

PIE–GRR flights arrived on time 89% of the time on Wednesdays and just 55% on Sundays. That gap is worth planning around.

It basically never cancels.

Out of 384 scheduled flights, only 0.3% were cancelled.

Flights on this route

The breakdown

On-time by weekday
  • Mon78%(63 flights)
  • Tue82%(39 flights)
  • Wed89%(46 flights)
  • Thu73%(55 flights)
  • Fri75%(64 flights)
  • Sat83%(59 flights)
  • Sun55%(56 flights)
On-time by departure window
  • 6–9 AM94%(70 flights)
  • 9 AM–12 PM82%(84 flights)
  • 12–3 PM76%(62 flights)
  • 3–6 PM68%(60 flights)
  • 6–9 PM63%(106 flights)
On-time trend by month
76%
May

Jun 63% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%30
July 202571%28
August 202567%21
September 202583%18
October 202587%30
November 202565%26
December 202578%41
January 202674%34
February 202678%36
March 202680%50
April 202682%39
May 202676%29

Based on 384 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.