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Route · PHL → CHS · 2020–2025 BTS data

Philadelphia to Charleston

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PHL to CHS (Philadelphia to Charleston) ranks #1866 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

80.2%
On-time
+1.2 pts
vs US avg
80 min
Delay when late
6,770
Flights
#1866 of 4927
Corpus placement

Cancelled

1.7%

Best Month

Oct 2024 89%

Worst Month

Jan 2024 63%

Distance

550 mi

Carriers

36

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 85 28 2 0 YX,OH,F9,AA
Nov 2025 110 25 0 0 F9,OH,AA,YX
Oct 2025 125 32 0 0 AA,YX,F9
Sep 2025 110 18 0 0 OH,F9,AA
Aug 2025 126 35 2 0 AA,F9,OH
Jul 2025 104 27 4 1 AA,OH,F9
Jun 2025 121 34 6 0 AA,OH,YX,F9
May 2025 135 39 3 1 AA,OH,YX,F9
Apr 2025 161 25 0 0 F9,OH,YX,AA
Mar 2025 137 26 2 0 AA,OH,YX,F9
Feb 2025 110 24 3 0 AA,OH,YX,F9
Jan 2025 115 19 12 0 AA,OH,YX
Dec 2024 72 13 0 0 AA,F9,OH,YX
Nov 2024 97 11 0 1 YX,OH,F9,AA
Oct 2024 148 16 0 0 YX,F9,AA,OH
Sep 2024 150 27 1 0 OH,AA,F9
Aug 2024 136 38 7 0 AA,F9,OH
Jul 2024 144 44 3 0 AA,F9
Jun 2024 135 29 3 0 AA,F9,YX
May 2024 141 39 0 0 AA,F9,OH,YX
Apr 2024 130 21 0 0 AA,F9,OH,YX
Mar 2024 103 17 0 0 AA,F9,OH,YX
Feb 2024 67 11 0 0 AA,YX
Jan 2024 51 19 0 0 AA,YX,OH

PHL–CHS seasonal on-time pattern

Best: November (86.2%) · weakest: July (71.0%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 80.7%

Strongest calendar month

November

86.2% on-time · ~82 flights/mo

Busiest calendar month

June

~123 flights/mo avg

Weakest calendar month

July

71.0% on-time · ~115 flights/mo

Cancellation Rate

1.7%

48 of 2,813 flights

Diversion Rate

0.1%

3 of 2,813 flights

Explore origin & destination

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

PHL - Philadelphia

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

PHL on-time profile

CHS - Charleston

Full on-time, delay-cause, and seasonal performance for Charleston, SC.

CHS on-time profile

Compare the two airports

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

Compare PHL vs CHS

Origin-hub reliability standing

Mid-pack among PHL departures

From PHL, this corridor sits with 60 other 75–85% on-time routes out of 65 tracked departures, not the hub's reliability leaders (4 at ≥85%) and not the softest ( 1 below 75%). Destination: Charleston · fleet on-time rank #3078 of 4927.

What the Data Says About PHL to CHS

6,770 tracked flights put the PHL to CHS pairing (Philadelphia to Charleston) at a 80.2% on-time rate, squarely in line with the wider network. Delays that do occur run 79.8 minutes on average. Across the 550-mile route and its 36 carriers, the trailing 24 months show 1.7% cancelled and 0.1% diverted (2,813 flights sampled).

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 89% on-time, while Jan 2024 came in at just 63% - a 26-point swing worth factoring into travel timing.

On the multi-year calendar, PHL–CHS peaks in November at 86.2% on-time while June carries the heaviest traffic (~123 flights per month) ; the softest month is July at 71.0%, a 15.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does PHL to CHS rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, PHL to CHS ranks #1866 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 PHL to CHS? ▼
Flights from Philadelphia to Charleston have a 80.2% on-time rate based on 6,770 flights. The average delay is 79.8 minutes. The best recent month was Oct 2024 with 89% on-time.
What is the cancellation rate for PHL to CHS? ▼
Over the last 24 months, 1.7% of flights on this route were cancelled (48 of 2,813 flights) and 0.1% were diverted.
How far is the flight from PHL to CHS? ▼
The flight distance from Philadelphia (PHL) to Charleston (CHS) is approximately 550 miles. This route is served by 36 carriers.
When is the best time to fly from PHL to CHS? ▼
The best recent month for on-time performance was Oct 2024 (89% on-time). The worst was Jan 2024 (63% on-time). Consider booking during months with historically better performance.

Airports on this route

PHL Airport

Philadelphia
CHS Airport

Charleston
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 PHL–CHS data

PHL–CHS is mid-pack at 80.2% on-time; month and carrier mix move more than the corridor headline.

  • Compare PHL and CHS airport profiles: delay causes and top routes differ even on the same corridor. PHL airport
  • If your dates flex, November (86.2% on-time) beats July (71.0%) on this corridor. Seasonal chart
  • 4 other routes post a similar 80.2% 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.