PHL to CHS flight delays
Philadelphia, PA (PHL) Charleston, SC (CHS) · 550 miles
1,109 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
77.47%
Arrived on time
Within 15 minutes of schedule
2.25%
Cancelled
Share of scheduled flights
78 min
When late, late by
Average across delayed arrivals
18 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In March it ran 22 points more punctual than in December — 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.
The 2 airlines here are separated by under 1 point — close enough to call a tie. Choose on price and departure time.
The Philadelphia to Charleston route sits close to the middle of the record — neither notably punctual nor notably late.
Which airline should you fly on this route?
Over January 2025 – August 2026, American Airlines arrived on time most often on PHL to CHS. PSA Airlines was late most often. Flights ran closest to schedule in March and worst in December.
Every airline on PHL to CHS
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 |
|---|---|---|---|---|---|
| American Airlines | 735 | 77.15% | 1.63% | 73 min | C |
| PSA Airlines | 266 | 76.77% | 4.51% | 96 min | D |
| Frontier Airlines | 74 | 76.71% | 1.35% | 71 min | — |
| Republic Airways | 34 | 91.18% | 0% | 43 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
CHS to PHL Charleston back to Philadelphia 78.82% on time COther routes from Philadelphia
Common questions
Are flights from Philadelphia to Charleston usually delayed?
77.47% of flights on the PHL to CHS route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airline is most on time from Philadelphia to Charleston?
American Airlines, at 77.15% on time across 735 flights. The least punctual on the route was PSA Airlines at 76.77%.
How often are PHL to CHS flights cancelled?
2.25% of scheduled flights did not operate — about 23 in every thousand. That is in the normal range.
What is the best month to fly Philadelphia to Charleston?
March, when 88.3% of flights arrived on time. The worst was December at 66.3%.
When PHL to CHS flights are late, how late are they?
About 78 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 PHL to CHS 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 →