Route Reliability
Philadelphia → Charlotte Amalie
PHL–STT · 1,605 miles · Philadelphia International Airport to Cyril E. King Airport
- 77%
- Arrive within 15 minutes
- 3 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 77% of the time across 187 flights. No comparison to make.
What the data says
The 6–9 AM departure wins.
PHL–STT flights departing between 6–9 AM arrived on time 79% of the time, versus 68% between 9 AM–12 PM.
Sunday scaries are real for this one.
PHL–STT flights arrived on time 95% of the time on Wednesdays and just 67% on Sundays. That gap is worth planning around.
Trending in the right direction.
PHL–STT flights arrived on time 85% of the time over the last three months in the data, compared with 65% in the three months before that.
Flights on this route
The breakdown
- Mon86%(21 flights)
- Tue82%(22 flights)
- Wed95%(20 flights)
- Thu67%(21 flights)
- Fri86%(22 flights)
- Sat69%(55 flights)
- Sun67%(21 flights)
- 6–9 AM79%(154 flights)
- 9 AM–12 PM68%(28 flights)
Dec 57% → May 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| December 2025 | 57% | 14 |
| January 2026 | 68% | 28 |
| February 2026 | 70% | 30 |
| March 2026 | 83% | 35 |
| April 2026 | 87% | 31 |
| May 2026 | 86% | 22 |
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.