Best Time to Fly MIA to STX: On-Time Stats by Hour & Airline
Miami International → Henry E. Rohlsen
Data through July 2026 · Last updated October 18, 2026
681 flights were scheduled from Miami (MIA) to Christiansted (STX) in the last 12 months, and 77.4% of those that flew arrived on time, in line with the US average of 77.6%.
American Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (80% on time) and August the worst month (64%).
The cancellation rate was 0.4% (US average 1.8%).
MIA to STX on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| American Airlines | 77.4% | 58 min | 0.4% | 681 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MIA to STX
On-time arrival % by scheduled departure hour (local time), 1,220 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | 85.7% | 1.8% | 57 |
| 10am–11am | 80.2% | 0.4% | 259 |
| 11am–12pm | 76.2% | 0.5% | 207 |
| 12pm–1pm | 77.3% | 0.0% | 225 |
| 1pm–2pm | 71.8% | 0.0% | 298 |
| 2pm–3pm | 78.3% | 0.0% | 46 |
| 5pm–6pm | 74.1% | 0.9% | 109 |
| 6pm–7pm | Limited data | 19 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MIA to STX
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 27 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 72.2% | -6.3 pts | 3.6% | 56 |
| Summer peak (Jun 15 - Aug 15) | 67.5% | -11.0 pts | 0.4% | 235 |
| All other days | 78.5% | — | 0.2% | 902 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).