Route · STT → SJU · 2020–2025 BTS data
Charlotte Amalie to San Juan
The STT–SJU corridor (Charlotte Amalie, VI → San Juan, PR) runs behind the national average, served by 6 carriers across roughly 68 miles.
Data updated 2026-06-13
- 74.3%
- On-time
- -4.7 pts
- vs US avg
- 88 min
- Delay when late
- 3,424
- Flights
Cancelled
1.4%
Best Month
Apr 2025 84%
Worst Month
Feb 2024 64%
Distance
68 mi
Carriers
6
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 51 | 17 | 0 | 0 | B6 |
| Nov 2025 | 41 | 14 | 0 | 0 | B6 |
| Aug 2025 | 42 | 12 | 2 | 0 | F9,B6 |
| Jul 2025 | 43 | 16 | 0 | 0 | B6,F9 |
| Jun 2025 | 34 | 6 | 0 | 0 | B6 |
| May 2025 | 36 | 7 | 0 | 0 | B6 |
| Apr 2025 | 51 | 8 | 0 | 0 | B6 |
| Mar 2025 | 49 | 8 | 0 | 0 | B6 |
| Feb 2025 | 42 | 12 | 1 | 0 | B6 |
| Jan 2025 | 49 | 16 | 0 | 0 | B6 |
| Dec 2024 | 54 | 17 | 0 | 1 | B6 |
| Nov 2024 | 42 | 10 | 0 | 0 | B6 |
| Oct 2024 | 63 | 14 | 0 | 1 | B6 |
| Sep 2024 | 49 | 11 | 1 | 0 | B6 |
| Aug 2024 | 71 | 21 | 1 | 0 | B6 |
| Jul 2024 | 72 | 19 | 0 | 0 | B6,UA |
| Jun 2024 | 75 | 24 | 0 | 0 | B6,F9,UA |
| May 2024 | 58 | 16 | 2 | 0 | B6,F9 |
| Apr 2024 | 81 | 21 | 2 | 0 | B6,F9 |
| Mar 2024 | 76 | 17 | 5 | 0 | B6,F9 |
| Feb 2024 | 56 | 20 | 3 | 0 | B6,F9 |
| Jan 2024 | 58 | 11 | 1 | 0 | B6,F9 |
| Dec 2023 | 78 | 25 | 0 | 1 | F9,B6 |
| Nov 2023 | 45 | 13 | 0 | 0 | B6,F9 |
Cancellation Rate
1.4%
18 of 1,316 flights
Diversion Rate
0.2%
3 of 1,316 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
STT - Charlotte Amalie
Full on-time, delay-cause, and seasonal performance for Charlotte Amalie, VI.
Origin airport →SJU - San Juan
Full on-time, delay-cause, and seasonal performance for San Juan, PR.
Destination airport →Compare the two airports
See STT and SJU side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to STT–SJU.
Routes with a similar on-time rate
What the Data Says About STT to SJU
On-time performance on the STT to SJU pairing (Charlotte Amalie to San Juan) trails a chunk of the network: 74.3% of 3,424 tracked flights arrived on schedule, with a 88.1-minute average delay on the ones that ran late. The route spans about 68 miles across 6 carriers. Cancellations over the trailing 24 months hit 1.4% (18 of 1,316 flights), with 0.2% diverted.
The monthly split is wide on this route: Apr 2025 posted the strongest performance at 84% on-time, while Feb 2024 came in at just 64% - a 20-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.