GRR to PHL flight delays
Grand Rapids, MI (GRR) Philadelphia, PA (PHL) · 573 miles
277 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
86.45%
Arrived on time
Within 15 minutes of schedule
1.44%
Cancelled
Share of scheduled flights
94 min
When late, late by
Average across delayed arrivals
13 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 94 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The season swings this route hard. In October it ran 20.3 points more punctual than in May — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Only PSA Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Flights from Grand Rapids to Philadelphia keep to schedule more reliably than most. On a route this punctual the day you fly matters more than the airline you pick.
Which airline should you fly on this route?
Over January 2025 – August 2026, PSA Airlines arrived on time most often on GRR to PHL. Flights ran closest to schedule in November and worst in July.
Every airline on GRR to PHL
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| PSA Airlines | 228 | 87.05% | 1.75% | 104 min | B |
| Republic Airways | 37 | 86.49% | 0% | 44 min | — |
| Allegiant Air | 12 | 75% | 0% | 75 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
Other routes from Grand Rapids
Common questions
Are flights from Grand Rapids to Philadelphia usually delayed?
86.45% of flights on the GRR to PHL route arrived within 15 minutes of schedule, so roughly 1 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Grand Rapids to Philadelphia?
Only PSA Airlines appears in the published record on this route, with 228 flights and 87.05% arriving on time.
How often are GRR to PHL flights cancelled?
1.44% of scheduled flights did not operate — about 14 in every thousand. That is in the normal range.
What is the best month to fly Grand Rapids to Philadelphia?
October, when 94.1% of flights arrived on time. The worst was May at 73.8%.
When GRR to PHL flights are late, how late are they?
About 94 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on GRR to PHL during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →