Best Time to Fly CHS to JFK: On-Time Stats by Hour & Airline
Charleston AFB/International → John F. Kennedy International
Data through July 2026 · Last updated October 18, 2026
785 flights were scheduled from Charleston (CHS) to New York (JFK) in the last 12 months, and 74.6% of those that flew arrived on time, 3.1 points below the US average of 77.6%.
Republic Airways was the most punctual of the 2 airlines on the route at 77.9%, while JetBlue trailed at 73.7%.
September has been the best month (90% on time) and Sunday the weakest day of the week (70%).
5.7% of flights were cancelled, versus 1.8% nationally.
CHS to JFK 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 | 77.9% | 71 min | 9.3% | 150 |
| JetBlue | 73.7% | 82 min | 4.9% | 633 |
| Delta Air Lines | Limited data | 2 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CHS to JFK
On-time arrival % by scheduled departure hour (local time), 1,984 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 84.8% | 8.9% | 101 |
| 7am–8am | 91.1% | 1.9% | 206 |
| 8am–9am | Limited data | 20 | |
| 9am–10am | 85.9% | 0.0% | 71 |
| 10am–11am | 75.0% | 7.0% | 129 |
| 11am–12pm | 80.5% | 1.6% | 443 |
| 12pm–1pm | 75.0% | 5.7% | 192 |
| 1pm–2pm | 69.8% | 0.0% | 63 |
| 2pm–3pm | 76.7% | 4.4% | 45 |
| 3pm–4pm | 97.0% | 0.0% | 33 |
| 4pm–5pm | 78.8% | 9.1% | 88 |
| 5pm–6pm | 78.6% | 2.0% | 200 |
| 6pm–7pm | 59.7% | 6.7% | 238 |
| 7pm–8pm | 56.9% | 0.0% | 65 |
| 8pm–9pm | 48.0% | 13.6% | 88 |
| 9pm–10pm | Limited data | 2 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CHS to JFK
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) | 72.5% | -7.2 pts | 0.0% | 51 |
| Christmas & New Year (Dec 20 - Jan 3) | 66.7% | -13.1 pts | 4.3% | 116 |
| Summer peak (Jun 15 - Aug 15) | 60.4% | -19.4 pts | 12.8% | 288 |
| All other days | 79.8% | — | 2.6% | 1,529 |
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).