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Route · GRR → PHL · 2020–2025 BTS data

Grand Rapids to Philadelphia

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), GRR to PHL (Grand Rapids to Philadelphia) ranks #4786 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

83.9%
On-time
+4.9 pts
vs US avg
83 min
Delay when late
627
Flights
#4786 of 4927
Corpus placement

Cancelled

5.6%

Best Month

Oct 2025 94%

Worst Month

Feb 2020 78%

Distance

573 mi

Carriers

2

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Oct 2025 51 3 0 0 OH,YX
Sep 2025 57 7 0 0 OH,YX
Nov 2022 30 3 1 0 OH
Apr 2022 46 12 1 0 OH
Aug 2021 33 6 0 0 OH
Jul 2021 62 13 1 0 OH
Jun 2021 54 12 1 0 OH
Aug 2020 31 4 1 0 OH
Jul 2020 30 7 1 1 OH
Apr 2020 55 4 19 0 OH
Mar 2020 59 9 3 0 OH
Feb 2020 58 13 3 0 OH
Jan 2020 61 8 4 0 OH

GRR–PHL seasonal on-time pattern

Best: October (94.1%) · weakest: February (77.6%)

75%80%85%90%95% JanFebMarAprJunJulAugSepOctNov 90%

Strongest calendar month

October

94.1% on-time · ~51 flights/mo

Busiest calendar month

January

~61 flights/mo avg

Weakest calendar month

February

77.6% on-time · ~58 flights/mo

Cancellation Rate

5.6%

35 of 627 flights

Diversion Rate

0.2%

1 of 627 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

GRR - Grand Rapids

Full on-time, delay-cause, and seasonal performance for Grand Rapids, MI.

GRR on-time profile

PHL - Philadelphia

Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.

PHL on-time profile

Compare the two airports

See GRR and PHL side by side on delays, cancellations, and reliability.

Compare GRR vs PHL

Origin-hub reliability standing

Mid-pack among GRR departures

From GRR, this corridor sits with 11 other 75–85% on-time routes out of 20 tracked departures, not the hub's reliability leaders (5 at ≥85%) and not the softest ( 4 below 75%). Destination: Philadelphia · fleet on-time rank #1615 of 4927.

What the Data Says About GRR to PHL

Bureau of Transportation Statistics records show Grand Rapids to Philadelphia (GRR to PHL) running a 83.9% on-time rate over 627 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 82.7 minutes. The 573-mile corridor is served by 2 carriers, and over the last 24 months 5.6% of 627 flights were cancelled, 0.2% diverted.

The monthly split is wide on this route: Oct 2025 posted the strongest performance at 94% on-time, while Feb 2020 came in at just 78% - a 17-point swing worth factoring into travel timing.

On the multi-year calendar, GRR–PHL peaks in October at 94.1% on-time while January carries the heaviest traffic (~61 flights per month) ; the softest month is February at 77.6%, a 16.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does GRR to PHL rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, GRR to PHL ranks #4786 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from GRR to PHL? ▼
Flights from Grand Rapids to Philadelphia have a 83.9% on-time rate based on 627 flights. The average delay is 82.7 minutes. The best recent month was Oct 2025 with 94% on-time.
What is the cancellation rate for GRR to PHL? ▼
Over the last 24 months, 5.6% of flights on this route were cancelled (35 of 627 flights) and 0.2% were diverted.
How far is the flight from GRR to PHL? ▼
The flight distance from Grand Rapids (GRR) to Philadelphia (PHL) is approximately 573 miles. This route is served by 2 carriers.
When is the best time to fly from GRR to PHL? ▼
The best recent month for on-time performance was Oct 2025 (94% on-time). The worst was Feb 2020 (78% on-time). Consider booking during months with historically better performance.

Airports on this route

GRR Airport

Grand Rapids
PHL Airport

Philadelphia
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using GRR–PHL data

GRR–PHL runs 4.9 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare GRR and PHL airport profiles: delay causes and top routes differ even on the same corridor. GRR airport
  • If your dates flex, October (94.1% on-time) beats February (77.6%) on this corridor. Seasonal chart
  • 4 other routes post a similar 83.9% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.