Chicago (ORD) to Charlotte Amalie (STT): On-Time Performance
Data through May 2026
Chicago (ORD) to Charlotte Amalie (STT) is a thinner route than most in this dataset — 255 departures over the past year, roughly 5 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 75% arrived on time.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 1.0%
- Flights/day
- 0.70
- last 12 months
- Duration
- 4h 50m
- scheduled
- Distance
- 2,116 mi
Best airline from ORD to STT
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 77% | 13 min | 1.1% | 264 |
| American Airlines | 70% | 21 min | 0.8% | 118 |
Monthly on-time trend
Best time to fly from ORD to STT
Aim for departures around 10 a.m. (89% on-time); avoid 9 a.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 64% | 17 min |
| Tuesday | 83% | 11 min |
| Wednesdaybest | 91% | 8 min |
| Thursday | 81% | 14 min |
| Friday | 54% | 33 min |
| Saturday | 76% | 14 min |
| Sunday | 74% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft23%
- Airline operations37%
- National airspace system33%
- Weather5%
- Security1%
Frequently asked questions
- How often are flights from ORD to STT delayed?
- 25% of ORD–STT flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 15 minutes.
- Which airline is most reliable from ORD to STT?
- United Airlines has the best on-time record on this route at 77%, based on 264 flights. 2 airlines flew ORD–STT frequently enough to compare in this period.
- What is the best time of day to fly from ORD to STT?
- Departures around 10 a.m. have the best record (89% on-time), while departures around 9 a.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ORD to STT?
- The scheduled ORD–STT flight time averages 4h 50m over 2,116 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are ORD to STT flights cancelled?
- 1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What day of the week is most reliable for ORD to STT?
- Wednesday flights have the best record at 91% on-time. Day-of-week differences on this route are meaningful — Friday trails at 54%.
Explore related pages
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Based on 382 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.