Route
JFK → STT
John F. Kennedy International Airport Cyril E. King Airport
1,623 miles
Return route STT → JFK →
How punctual is this route?
- On-time arrivals
- 80.1%
- Less than 15 minutes late
- Cancelled
- 2.2%
- Of scheduled flights
- Average delay when late
- 100 min
- Flights arriving 15+ minutes late
- Flights tracked
- 546
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 49%
- Late-arriving aircraft 26%
- Air traffic control & airport 20%
- Extreme weather 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 100.0% | 2 |
| November 2025 | 93.9% | 33 |
| December 2025 | 75.6% | 45 |
| January 2026 | 81.5% | 62 |
| February 2026 | 63.5% | 56 |
| March 2026 | 78.7% | 62 |
| April 2026 | 85.5% | 62 |
| May 2026 | 91.9% | 62 |
| June 2026 | 78.0% | 60 |
| July 2026 | 71.0% | 62 |
| August 2026 | 85.0% | 40 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| American Airlines | 305 | 79.9% | 2.0% | 128 min |
| Delta Air Lines | 241 | 80.3% | 2.5% | 62 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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