FlightRecord

Cyril E. King Airport (STT): Delays & On-Time Performance

Data through May 2026

Cyril E. King Airport (STT) is a tale of two seasons: departures ran 87% on-time in June 2025 but sank to 67% in March 2026. Across the year it averages 78% against a national 78%, over roughly 15 departures a day to 15 destinations.

Departures on-time
78%
left <15 min late
Avg dep delay
21 min
Arrivals on-time
78%
Cancelled
1.4%
Destinations
15
nonstop
Airlines
7

Monthly on-time trend

Monthly departure on-time percentage at STT50%75%100%June 2024: 71% on-time (504 flights)71Jun 2024July 2024: 71% on-time (495 flights)71August 2024: 71% on-time (412 flights)71September 2024: 85% on-time (232 flights)85Sep 2024October 2024: 83% on-time (278 flights)83November 2024: 86% on-time (368 flights)86December 2024: 81% on-time (483 flights)81Dec 2024January 2025: 82% on-time (506 flights)82February 2025: 79% on-time (455 flights)79March 2025: 82% on-time (549 flights)82Mar 2025April 2025: 82% on-time (490 flights)82May 2025: 81% on-time (458 flights)81June 2025: 87% on-time (479 flights)87Jun 2025July 2025: 81% on-time (510 flights)81August 2025: 76% on-time (351 flights)76September 2025: 83% on-time (162 flights)83Sep 2025October 2025: 86% on-time (223 flights)86November 2025: 79% on-time (367 flights)79December 2025: 77% on-time (494 flights)77Dec 2025January 2026: 69% on-time (602 flights)69February 2026: 73% on-time (611 flights)73March 2026: 67% on-time (764 flights)67Mar 2026April 2026: 83% on-time (611 flights)83May 2026: 85% on-time (481 flights)85

Best time of day to depart from STT

On-time percentage by scheduled departure hour at STT10 a.m.: 89% on-time (298 flights)1011 a.m.: 83% on-time (676 flights)1112 p.m.: 85% on-time (671 flights)121 p.m.: 81% on-time (2,116 flights)132 p.m.: 78% on-time (2,063 flights)143 p.m.: 74% on-time (1,761 flights)154 p.m.: 74% on-time (2,066 flights)165 p.m.: 75% on-time (944 flights)176 p.m.: 86% on-time (266 flights)18scheduled departure hour

Busiest routes from STT

RouteFlights/12moOn-timeAvg delay
STT → MIA94181%25 min
STT → ATL72080%19 min
STT → CLT60382%22 min
STT → JFK54478%22 min
STT → SJU54173%22 min
STT → MCO45076%15 min
STT → FLL33078%14 min
STT → IAD32882%11 min

Most reliable routes

  1. STT → EWR86%
  2. STT → IAD82%
  3. STT → CLT82%
  4. STT → IAH81%
  5. STT → MIA81%

Most delay-prone routes

  1. STT → DFW69%
  2. STT → ORD70%
  3. STT → SJU73%
  4. STT → BOS74%
  5. STT → PHL75%

Airline performance at STT

AirlineOn-time departuresAvg delayFlights
United Airlines84%11 min1,721
Delta Air Lines79%20 min1,976
American Airlines79%27 min4,276
Spirit Airlines76%16 min1,543
JetBlue Airways74%21 min1,161
Southwest Airlines64%15 min177

Frequently asked questions

How often are flights delayed at STT?
22% of departures from Cyril E. King Airport left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 21 minutes. The national on-time average over the same period was 78%.
What is the best time of day to depart from STT?
Flights scheduled around 10 a.m. depart on time 89% of the time at STT, versus 74% around 4 p.m.. Booking before noon is the usual rule of thumb here.
What is the worst month for delays at STT?
In this dataset, March 2026 was the weakest month at STT, with 67% of departures on time.
How often are flights cancelled at STT?
1.4% of scheduled departures from STT were cancelled in this period, compared with a national rate of 1.6%.

Popular route pages from this airport

Based on 10,885 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.