BWI to STT flight delays & on-time performance
Nonstop flights from Baltimore/Washington International Thurgood Marshall Airport to Cyril E. King Airport · 1,598 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BWI or STT right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Baltimore (BWI) to Charlotte Amalie (STT) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0% were cancelled, and 4% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 8am did best (79% on time); around 10am did worst (67%).
- Sunday was the most reliable day to fly (83% on time) and Saturday the least (68%).
- The largest source of delay minutes was air traffic control & airport congestion (56%).
Which airline is most on time from BWI to STT?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 75% | 0.0% | 13 min | 3.9% | 77 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am79%56 flights
- 10am67%21 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday50%0.0% cancelled
- Tuesday75%0.0% cancelled
- Wednesday100%0.0% cancelled
- Thursday57%0.0% cancelled
- Friday100%0.0% cancelled
- Saturday68%0.0% cancelled
- Sunday83%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Air traffic control & airport congestion56%
- Airline (crew, maintenance, cleaning, fueling)28%
- Late-arriving aircraft16%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
No cancellation causes recorded in this period.
BWI to STT: common questions
- How often are BWI to STT flights on time?
- 75% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Baltimore to Charlotte Amalie cancelled?
- 0.0% of scheduled flights were cancelled (0 of 77).
- How long are typical delays?
- Across all flights the average arrival delay was 13 min (early arrivals count as zero). Flights that were late arrived 45 min behind schedule on average, and 3.9% of flights were an hour or more late.
- How long is taxi time at BWI?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: STT to BWI — 55% on time
More flights from Baltimore
More flights to Charlotte Amalie
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BWI → STT, nonstop flights by US airlines that report to the DOT. How we calculate this.