OnTimeRoutes
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Delta Air Lines STT to JFK on-time performance

Delta Air Lines nonstop flights from Charlotte Amalie to New York · Aug 2025 – Jul 2026

On-time arrivals
85%
arrived < 15 min late
Cancelled
3.8%
9 flights
Avg arrival delay
8 min
46 min when late
Rank on route
#1 of 2
route average 79% on time

Key facts

  • Delta Air Lines flights on STT to JFK arrived on time 85% of the time in Aug 2025 – Jul 2026.
  • 3.8% were cancelled, and 3% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 79% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (54%).

On-time trend by month

50%75%100%July 2025: 67.7% on time, 0.0% cancelledJul ’25August 2025: 66.7% on time, 14.3% cancelledAug ’25November 2025: 75.0% on time, 0.0% cancelledNov ’25December 2025: 78.6% on time, 0.0% cancelledDec ’25January 2026: 79.2% on time, 16.1% cancelledJan ’26February 2026: 92.0% on time, 7.1% cancelledFeb ’26March 2026: 93.5% on time, 0.0% cancelledMar ’26April 2026: 87.5% on time, 0.0% cancelledApr ’26May 2026: 85.7% on time, 3.2% cancelledMay ’26June 2026: 82.8% on time, 0.0% cancelledJun ’26July 2026: 83.3% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft54%
  • Air traffic control & airport congestion23%
  • Airline (crew, maintenance, cleaning, fueling)22%
  • Security1%
  • Extreme weather0%

Other airlines on STT to JFK

239 Delta Air Lines flights tracked on this route; 9 cancelled, 7 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.