PlainFlights

Route · CMH → PHL · 2020–2025 BTS data

Columbus to Philadelphia

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), CMH to PHL (Columbus to Philadelphia) ranks #1761 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

84.6%
On-time
+5.6 pts
vs US avg
84 min
Delay when late
7,181
Flights
#1761 of 4927
Corpus placement

Cancelled

2.4%

Best Month

Jan 2024 92%

Worst Month

Jul 2025 57%

Distance

406 mi

Carriers

13

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 91 18 5 0 YX,OH,AA
Nov 2025 88 15 1 0 OH,AA,YX
Oct 2025 165 35 2 2 AA,OH,YX
Sep 2025 126 27 1 0 OH,YX,AA
Aug 2025 169 37 5 0 AA,YX,OH
Jul 2025 127 54 10 1 AA,YX
Jun 2025 127 39 6 0 AA,OH,YX
May 2025 75 28 3 0 AA,OH,YX
Apr 2025 118 34 2 0 OH,YX,AA
Mar 2025 88 24 0 0 OH,YX
Feb 2025 68 16 6 0 OH,YX
Jan 2025 91 15 2 0 OH,YX
Dec 2024 74 17 0 1 AA,OH,YX
Nov 2024 118 21 0 0 YX,OH,AA
Oct 2024 168 31 0 0 YX,AA,OH
Sep 2024 155 38 0 0 YX,OH,AA
Aug 2024 186 52 7 0 AA,F9,OH,YX
Jul 2024 195 45 8 1 AA,F9,OH,YX
Jun 2024 157 20 4 0 AA,F9,OH,YX
May 2024 122 11 2 0 AA,F9,OH,YX
Apr 2024 79 11 0 0 AA,OH,YX
Mar 2024 58 7 0 0 OH,YX
Feb 2024 72 6 0 0 AA,OH,YX
Jan 2024 85 7 4 0 YX,OH

CMH–PHL seasonal on-time pattern

Best: March (88.3%) · weakest: July (77.1%)

75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 86.5%

Strongest calendar month

March

88.3% on-time · ~86 flights/mo

Busiest calendar month

August

~128 flights/mo avg

Weakest calendar month

July

77.1% on-time · ~120 flights/mo

Cancellation Rate

2.4%

68 of 2,802 flights

Diversion Rate

0.2%

5 of 2,802 flights

Explore origin & destination

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

CMH - Columbus

Full on-time, delay-cause, and seasonal performance for Columbus, OH.

CMH 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 CMH and PHL side by side on delays, cancellations, and reliability.

Compare CMH vs PHL

Origin-hub reliability standing

Mid-pack among CMH departures

From CMH, this corridor sits with 19 other 75–85% on-time routes out of 33 tracked departures, not the hub's reliability leaders (13 at ≥85%) and not the softest ( 1 below 75%). Destination: Philadelphia · fleet on-time rank #1356 of 4927.

What the Data Says About CMH to PHL

Bureau of Transportation Statistics records show Columbus to Philadelphia (CMH to PHL) running a 84.6% on-time rate over 7,181 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 83.8 minutes. The 406-mile corridor is served by 13 carriers, and over the last 24 months 2.4% of 2,802 flights were cancelled, 0.2% diverted.

The monthly split is wide on this route: Jan 2024 posted the strongest performance at 92% on-time, while Jul 2025 came in at just 57% - a 34-point swing worth factoring into travel timing.

On the multi-year calendar, CMH–PHL peaks in March at 88.3% on-time while August carries the heaviest traffic (~128 flights per month) ; the softest month is July at 77.1%, a 11.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does CMH to PHL rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, CMH to PHL ranks #1761 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 CMH to PHL? ▼
Flights from Columbus to Philadelphia have a 84.6% on-time rate based on 7,181 flights. The average delay is 83.8 minutes. The best recent month was Jan 2024 with 92% on-time.
What is the cancellation rate for CMH to PHL? ▼
Over the last 24 months, 2.4% of flights on this route were cancelled (68 of 2,802 flights) and 0.2% were diverted.
How far is the flight from CMH to PHL? ▼
The flight distance from Columbus (CMH) to Philadelphia (PHL) is approximately 406 miles. This route is served by 13 carriers.
When is the best time to fly from CMH to PHL? ▼
The best recent month for on-time performance was Jan 2024 (92% on-time). The worst was Jul 2025 (57% on-time). Consider booking during months with historically better performance.

Airports on this route

CMH Airport

Columbus
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 CMH–PHL data

CMH–PHL runs 5.6 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare CMH and PHL airport profiles: delay causes and top routes differ even on the same corridor. CMH airport
  • If your dates flex, March (88.3% on-time) beats July (77.1%) on this corridor. Seasonal chart
  • 4 other routes post a similar 84.6% 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.