Route Reliability
Charlotte Amalie → Philadelphia
STT–PHL · 1,605 miles · Cyril E. King Airport to Philadelphia International Airport
- 74%
- Arrive within 15 minutes
- 25 min
- Average arrival delay
- 2.1%
- Cancelled
- 187
- Flights in the data
Data through May 2026.
American Airlines is the only airline in this data on this route, arriving on time 74% of the time across 187 flights. No comparison to make.
What the data says
Morning flights do better here.
STT–PHL flights departing between 9 AM–12 PM arrived on time 86% of the time, versus 70% between 12–3 PM.
Thursdays have been rough.
STT–PHL flights arrived on time 87% of the time on Saturdays and just 55% on Thursdays. That gap is worth planning around.
Trending in the right direction.
STT–PHL flights arrived on time 80% of the time over the last three months in the data, compared with 63% in the three months before that.
Flights on this route
The breakdown
- Mon75%(20 flights)
- Tue77%(22 flights)
- Wed71%(21 flights)
- Thu55%(20 flights)
- Fri68%(22 flights)
- Sat87%(53 flights)
- Sun67%(18 flights)
- 9 AM–12 PM86%(35 flights)
- 12–3 PM70%(114 flights)
- 3–6 PM78%(27 flights)
Dec 62% → May 95% on time
| Month | On-time percentage | Flights |
|---|---|---|
| December 2025 | 62% | 13 |
| January 2026 | 62% | 26 |
| February 2026 | 67% | 30 |
| March 2026 | 74% | 35 |
| April 2026 | 69% | 29 |
| May 2026 | 95% | 21 |
Keep nerding
Based on 187 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.