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Route Reliability

Charlotte Amalie → Miami

STT–MIA · 1,107 miles · Cyril E. King Airport to Miami International Airport

86
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
6 min
Average arrival delay
1.1%
Cancelled
941
Flights in the data

Data through May 2026.

American Airlines is the only airline in this data on this route, arriving on time 83% of the time across 941 flights. No comparison to make.

What the data says

The late departure is the smart one here.

STT–MIA flights departing between 6–9 PM arrived on time 86% of the time, versus 79% between 3–6 PM.

Saturdays have been rough.

STT–MIA flights arrived on time 94% of the time on Wednesdays and just 75% on Saturdays. That gap is worth planning around.

Ticking up lately.

STT–MIA flights arrived on time 84% of the time over the last three months in the data, compared with 80% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon76%(135 flights)
  • Tue85%(118 flights)
  • Wed94%(120 flights)
  • Thu90%(135 flights)
  • Fri87%(134 flights)
  • Sat75%(149 flights)
  • Sun76%(138 flights)
On-time by departure window
  • 12–3 PM86%(424 flights)
  • 3–6 PM79%(382 flights)
  • 6–9 PM86%(123 flights)
On-time trend by month
94%
May

Jun 91% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%64
July 202586%65
August 202586%57
September 202580%50
October 202587%61
November 202580%64
December 202589%89
January 202674%81
February 202678%97
March 202673%122
April 202684%95
May 202694%84

Same trip, other airports

Keep nerding

Based on 941 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.