Flights Washington → St. Thomas
IAD → STT
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Washington (IAD) → St. Thomas (STT) route is operated by United Airlines. Across 120 flights monitored in recent months, 92% arrived on time (within 15 min of schedule), with an average delay of -2 minutes. The cancellation rate is 0.00%. FlightGuard's average computed risk is 14.6/100 (low), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At St. Thomas the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Washington the average ATFM delay is 2.0 minutes.
Heading to St. Thomas: what to expect in this direction
Flying from Washington (IAD) to St. Thomas (STT) heads south-east for about 2,589 km, a flight time of roughly 3h 39m.
Departures from Washington on this leg cluster in the overnight window: about 100% of IAD-STT flights take off then.
Air-traffic congestion: departing Washington the average ATFM delay is 2.0 min (atfm); arriving into St. Thomas it is 2.0 min (atfm).
Across 120 tracked IAD-STT flights, 92% left on time with an average delay of -2 min and a 0.0% cancellation rate.
Route facts
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| United Airlines (UA) | 74% | 10 min | 6.9% |
Airlines operating IAD-STT
Airports
Frequently asked questions about IAD-STT
On the Washington (IAD) -> St. Thomas (STT) route, on-time performance is 92% with an average delay of -2 minutes, based on 120 tracked flights.
The cancellation rate on Washington-St. Thomas is 0.00% across 120 monitored flights.
The route is operated by 1 airline: United Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at St. Thomas, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
