Route on-time record
CHS to PHL: most on-time flights and the best time to fly
Charleston (Charleston International Airport) to Philadelphia (Philadelphia International Airport). 1,138 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 2.0% were cancelled. The most reliable flight number was American 1945 at 12:26 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
CHS → PHL
Charleston to Philadelphia: 1,138 nonstop flights a year
On time (12 months)
78%
Cancelled
2.0%
avg delay 22 min
Best time to leave
Noon to 3 PM
88% on time vs 69% 3 to 6 PM
Most reliable airline
Republic
81% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · American 1945
12:26 PM → 2:19 PM1h 53m nonstop
Local times, typical schedule. Last flown 2026-05-20.
87%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 93% of the time (43 flights, Jun 2025 to May 2026).
- Never cancelled in 43 scheduled flights.
- Leaves in this route's most on-time window (Noon to 3 PM: 88% on time; 3 to 6 PM: 69%).
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 43 flights
Find American 1945 fares Opens this date on Aviasales#2 · American 2163
7:13 PM → 9:07 PM1h 54m nonstop
Local times, typical schedule. Last flown 2026-05-18.
83%
chance on time
- On time (history)
- 89%
- Cancelled
- 2.7%
- Avg arrival delay
- 12 min
- Arrived on time 89% of the time (36 flights, Jun 2025 to May 2026).
- 93% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (36 flights), so its score leans on the airline's record at this hour.
Limited track record · 36 flights
Find American 2163 fares Opens this date on Aviasales#3 · American 2531
10:57 AM → 12:47 PM1h 50m nonstop
Local times, typical schedule. Last flown 2026-04-06.
83%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.0%
- Avg arrival delay
- 78 min
- Arrived on time 85% of the time (26 flights, Jun 2025 to May 2026).
- Short track record (26 flights), so its score leans on the airline's record at this hour.
Limited track record · 26 flights
Find American 2531 fares Opens this date on Aviasales#4 · Republic 4407 · sold as American Eagle, Delta Connection or United Express
4:22 PM → 6:22 PM2h 00m nonstop
Local times, typical schedule. Last flown 2026-04-06.
82%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 89% of the time (9 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 69% on time; Noon to 3 PM: 88%).
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (9 flights), so its score leans on the airline's record at this hour.
Limited track record · 9 flights
Find 4:22 PM flight fares Opens this date on Aviasales#5 · PSA 5575 · sold as American Eagle
11:32 AM → 1:25 PM1h 53m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 80%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 80% of the time (10 flights, Jun 2025 to May 2026).
- Short track record (10 flights), so its score leans on the airline's record at this hour.
Limited track record · 10 flights
Find 11:32 AM flight fares Opens this date on Aviasales#6 · American 1957
4:30 PM → 6:27 PM1h 57m nonstop
Local times, typical schedule. Last flown 2026-05-20.
77%
chance on time
- On time (history)
- 80%
- Cancelled
- 0.0%
- Avg arrival delay
- 12 min
- Arrived on time 80% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Leaves in this route's least on-time window (3 to 6 PM: 69% on time; Noon to 3 PM: 88%).
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 44 flights
Find American 1957 fares Opens this date on Aviasales#7 · PSA 5067 · sold as American Eagle
7:00 AM → 8:54 AM1h 54m nonstop
Local times, typical schedule. Last flown 2026-05-31.
76%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 89% of the time (9 flights, Jun 2025 to May 2026).
- Short track record (9 flights), so its score leans on the airline's record at this hour.
Limited track record · 9 flights
Find 7:00 AM flight fares Opens this date on Aviasales#8 · American 1672
6:42 PM → 8:38 PM1h 56m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as American 2529; its record covers all of them.
71%
chance on time
- On time (history)
- 75%
- Cancelled
- 3.1%
- Avg arrival delay
- 19 min
- Arrived on time 75% of the time (63 flights, Jun 2025 to May 2026).
- Cancelled 3.1% of the time (2 of 65).
- 74% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 63 flights
Find American 1672 fares Opens this date on Aviasales#9 · PSA 5630 · sold as American Eagle
4:30 PM → 6:29 PM1h 59m nonstop
Local times, typical schedule. Last flown 2026-05-31.
71%
chance on time
- On time (history)
- 64%
- Cancelled
- 0.0%
- Avg arrival delay
- 36 min
- Arrived on time 64% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 69% on time; Noon to 3 PM: 88%).
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
- 60% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 11 flights
Find 4:30 PM flight fares Opens this date on Aviasales#10 · Frontier 3036
2:59 PM → 4:51 PM1h 52m nonstop
Local times, typical schedule. Last flown 2026-04-12.
67%
chance on time
- On time (history)
- 68%
- Cancelled
- 3.8%
- Avg arrival delay
- 21 min
- Arrived on time 68% of the time (75 flights, Jun 2025 to May 2026).
- Cancelled 3.8% of the time (3 of 78).
- Leaves in this route's most on-time window (Noon to 3 PM: 88% on time; 3 to 6 PM: 69%).
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
Moderate track record · 75 flights
Find Frontier 3036 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Republic Airways (sold as American Eagle, Delta Connection or United Express)81%
38 flights · 89% on time as flown · 1.6% cancel
- American Airlines78%
795 flights · 79% on time as flown · 1.9% cancel
- PSA Airlines (sold as American Eagle)75%
222 flights · 76% on time as flown · 2.2% cancel
- Frontier Airlines71%
83 flights · 69% on time as flown · 2.6% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM86%
216 flights · avg delay 21 min
- 9 AM to noon84%
311 flights · avg delay 19 min
- Noon to 3 PM88%
70 flights · avg delay 8 min
- 3 to 6 PM69%
279 flights · avg delay 23 min
- 6 to 9 PM72%
262 flights · avg delay 27 min
Best day: Tuesday (83%). Worst: Friday (76%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft54%
- Airline (crew, maintenance, boarding)33%
- Air traffic control and airport volume12%
- Severe weather1%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
CHS to PHL questions
- What time of day is best to fly CHS to PHL?
- Noon to 3 PM: 88% of flights arrived on time, against 69% for departures 3 to 6 PM.
- Which airline is most on time from CHS to PHL?
- Republic, with a season-adjusted 81% chance of operating and arriving on time over 38 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on CHS to PHL?
- July (69% on time); the best was November (85%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from CHS
- PHL to CHS (return)
- CHS to ATL 89%
- CHS to CLT 83%
- CHS to ORD 77%
- CHS to DCA 72%
- CHS to LGA 74%
- CHS to EWR 79%
- CHS to DFW 80%
- CHS to BWI 82%
- CHS to BOS 71%
- CHS to MIA 79%
- CHS to BNA 81%
- CHS to JFK 73%
Live status: FAA delays and ground stops