Best Time to Fly JFK to CHS: On-Time Stats by Hour & Airline
John F. Kennedy International → Charleston AFB/International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 75.4% of New York (JFK) to Charleston (CHS) flights arrived on time (787 scheduled flights). That is 2.2 points below the national average of 77.6%.
Among 2 airlines, Republic Airways led with 80.3% on time and JetBlue was last with 74.2%.
Over 24 months, Wednesday was the most reliable day (82% on time) and July the worst month (59%).
The cancellation rate was 5.7% (US average 1.8%).
JFK to CHS on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airways | 80.3% | 64 min | 9.3% | 151 |
| JetBlue | 74.2% | 71 min | 4.9% | 634 |
| Delta Air Lines | Limited data | 2 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly JFK to CHS
On-time arrival % by scheduled departure hour (local time), 1,988 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 1 | |
| 6am–7am | 89.7% | 0.0% | 39 |
| 7am–8am | 77.9% | 7.3% | 123 |
| 8am–9am | 81.8% | 3.2% | 494 |
| 9am–10am | 79.6% | 3.1% | 229 |
| 10am–11am | Limited data | 14 | |
| 11am–12pm | 84.9% | 1.9% | 54 |
| 12pm–1pm | 83.3% | 3.5% | 87 |
| 1pm–2pm | 85.6% | 0.7% | 147 |
| 2pm–3pm | 71.0% | 1.7% | 116 |
| 3pm–4pm | 62.2% | 2.3% | 260 |
| 4pm–5pm | 61.0% | 13.2% | 68 |
| 5pm–6pm | 67.1% | 5.8% | 87 |
| 6pm–7pm | 85.3% | 11.7% | 77 |
| 7pm–8pm | 81.1% | 6.2% | 113 |
| 8pm–9pm | 72.4% | 3.8% | 79 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on JFK to CHS
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 69.2% | -11.5 pts | 0.0% | 52 |
| Christmas & New Year (Dec 20 - Jan 3) | 64.3% | -16.5 pts | 3.5% | 116 |
| Summer peak (Jun 15 - Aug 15) | 62.3% | -18.5 pts | 12.2% | 288 |
| All other days | 80.8% | — | 2.5% | 1,532 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).