MIA to STX flight delays & on-time performance
Nonstop flights from Miami International Airport to Henry E. Rohlsen Airport · 1,139 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MIA or STX right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Miami (MIA) to Christiansted (STX) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.4% 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 9am did best (86% on time); around 5pm did worst (74%).
- Friday was the most reliable day to fly (82% on time) and Saturday the least (71%).
- The largest source of delay minutes was late-arriving aircraft (42%).
Which airline is most on time from MIA to STX?
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 | 77% | 0.4% | 14 min | 6.5% | 681 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am86%57 flights
- 10am81%148 flights
- 11am76%46 flights
- 12pm81%116 flights
- 1pm74%140 flights
- 2pm78%46 flights
- 5pm74%109 flights
- 6pm44%19 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%1.0% cancelled
- Tuesday79%0.0% cancelled
- Wednesday78%0.0% cancelled
- Thursday81%0.0% cancelled
- Friday82%0.0% cancelled
- Saturday71%2.0% cancelled
- Sunday74%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.
- Late-arriving aircraft42%
- Airline (crew, maintenance, cleaning, fueling)37%
- Air traffic control & airport congestion16%
- Extreme weather4%
- Security1%
Why flights are cancelled
Share of cancellations by reason.
- Air traffic control & airport congestion67%
- Extreme weather33%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
MIA to STX: common questions
- How often are MIA to STX flights on time?
- 77% 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 Miami to Christiansted cancelled?
- 0.4% of scheduled flights were cancelled (3 of 681).
- How long are typical delays?
- Across all flights the average arrival delay was 14 min (early arrivals count as zero). Flights that were late arrived 58 min behind schedule on average, and 6.5% of flights were an hour or more late.
- How long is taxi time at MIA?
- Flights on this route spent 22 min taxiing from the gate to takeoff on average.
Related routes
Return trip: STX to MIA — 80% on time
More flights from Miami
More flights to Christiansted
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MIA → STX, nonstop flights by US airlines that report to the DOT. How we calculate this.