ON TIMEBOARD
GRR Grand Rapids / PIE St. Petersburg

GRR → PIE on time

Gerald R. Ford (Grand Rapids, MI) to St. Petersburg Clearwater (St. Petersburg, FL). Every scheduled flight, September 2025 to August 2026.

On time
76%
arrived < 15 min late
Cancelled
0.3%
381 flights
Typical arrival
−5 min
median vs schedule
When late
+58 min
average delay
Flights / day
1
1 airline

76% of flights from Grand Rapids to St. Petersburg arrived on time over the past 12 months. That is about the typical U.S. route. 6% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for GRR → PIE: when a flight was late, it was under 45 minutes late 71% of the time. About 1 in 20 flights landed an hour or more late, and 1 in 127 three hours or more; 0.3% were cancelled outright.

Share of all 381 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Allegiant Air38176%0.3%−5 min5.0%+58 minAllegiant Air

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at GRR). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%6 a.m. departures: too few flights (20 flights)6a7 a.m. departures: too few flights (30 flights)7a8 a.m. departures: too few flights (32 flights)8a9 a.m. departures: too few flights (42 flights)9a10 a.m. departures: too few flights (16 flights)10a11 a.m. departures: too few flights (16 flights)11anoon departures: too few flights (14 flights)12p1 p.m. departures: too few flights (32 flights)1p2 p.m. departures: too few flights (24 flights)2p3 p.m. departures: too few flights (64 flights)3p4 p.m. departures: too few flights (22 flights)4p5 p.m. departures: too few flights (25 flights)5p6 p.m. departures: too few flights (9 flights)6p7 p.m. departures: too few flights (2 flights)7p8 p.m. departures: too few flights (33 flights)8p
GRR → PIE, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

By month

Each calendar month pooled over 2023–2026. Best: April (87%). Worst: December (72%).

40%70%100%Jan: too few flights (98 flights)JanFeb: 76% on time (108 flights)76FebMar: 79% on time (143 flights)79MarApr: 87% on time (114 flights)87AprMay: too few flights (84 flights)MayJun: too few flights (81 flights)JunJul: too few flights (82 flights)JulAug: too few flights (63 flights)AugSep: too few flights (53 flights)SepOct: too few flights (88 flights)OctNov: too few flights (75 flights)NovDec: 72% on time (113 flights)72Dec

By day of week

DayFlightsOn timeCancelled
Monday65——
Tuesday37——
Wednesday46——
Thursday55——
Friday64——
Saturday59——
Sunday55——

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Air traffic & airport (NAS) 36%Airline (crew, maintenance, ops) 29%Late inbound plane 21%Severe weather 14%

Cancellations: weather 1

Month by month

Not enough months with data to draw a trend.

Worst days in the past year

DateFlightsOn timeCancelled
Apr 4, 2026333%0
Apr 11, 2026367%0
Mar 21, 2026367%0
Mar 28, 2026367%0

Questions

How often are flights from GRR to PIE on time?

76% of 381 scheduled flights from Grand Rapids, MI to St. Petersburg, FL arrived within 15 minutes of schedule between September 2025 and August 2026. 0.3% were cancelled.

What month has the most delays from GRR to PIE?

December (72% on time). The best month is April (87%), over 2023–2026.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.