STT to MIA flight delays & on-time performance
Nonstop flights from Cyril E. King Airport to Miami International Airport · 1,107 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at STT or MIA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Charlotte Amalie (STT) to Miami (MIA) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.1% were cancelled, and 6% arrived an hour or more late.
- American Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 12pm did best (86% on time); around 3pm did worst (59%).
- Wednesday was the most reliable day to fly (92% on time) and Saturday the least (74%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (55%).
Which airline is most on time from STT to MIA?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| American Airlines | 82% | 1.1% | 22 min | 5.8% | 941 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 12pm86%89 flights
- 1pm86%238 flights
- 2pm80%107 flights
- 3pm59%35 flights
- 4pm77%198 flights
- 5pm82%150 flights
- 6pm86%124 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%0.0% cancelled
- Tuesday85%2.5% cancelled
- Wednesday92%0.0% cancelled
- Thursday90%0.0% cancelled
- Friday85%0.7% cancelled
- Saturday74%3.9% cancelled
- Sunday76%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)55%
- Late-arriving aircraft35%
- Air traffic control & airport congestion9%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather40%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion30%
- Security0%
STT to MIA: common questions
- How often are STT to MIA flights on time?
- 82% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Charlotte Amalie to Miami cancelled?
- 1.1% of scheduled flights were cancelled (10 of 941).
- How long are typical delays?
- Across all flights the average arrival delay was 22 min (early arrivals count as zero). Flights that were late arrived 120 min behind schedule on average, and 5.8% of flights were an hour or more late.
- How long is taxi time at STT?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MIA to STT — 77% on time
More flights from Charlotte Amalie
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: STT → MIA, nonstop flights by US airlines that report to the DOT. How we calculate this.