BOS to STT flight delays
Boston, MA (BOS) Charlotte Amalie, VI (STT) · 1,693 miles
449 flights · July 2024 – July 2026 · US Bureau of Transportation Statistics
75.69%
Arrived on time
Within 15 minutes of schedule
2.9%
Cancelled
Share of scheduled flights
78 min
When late, late by
Average across delayed arrivals
20 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Which airline you fly changes the odds here. JetBlue Airways arrived on time 6.7 points more often than Delta Air Lines over the same period on the same route — same airports, same weather, same air traffic control. A gap that survives all of that is about how the two airlines are run.
The season swings this route hard. In April it ran 28.9 points more punctual than in February — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Cancellation, not delay, is the risk worth pricing here: 2.9% of scheduled flights never operated. A late flight still gets you there. A cancelled one leaves you rebooking, and on a route with few daily departures that can mean losing a day.
This is a thin route — 449 flights across the whole period. On a route this infrequent a cancellation is far more costly than the rate suggests, because the next departure may not be the same day.
Which airline should you fly on this route?
Over July 2024 – July 2026, JetBlue Airways arrived on time most often on BOS to STT. Delta Air Lines was late most often. Flights ran closest to schedule in October and worst in February.
Every airline on BOS to STT
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| JetBlue Airways | 322 | 77.56% | 2.17% | 65 min | C |
| Delta Air Lines | 127 | 70.83% | 4.72% | 104 min | F |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
STT to BOS Charlotte Amalie back to Boston 78.76% on time DOther routes from Boston
Common questions
Are flights from Boston to Charlotte Amalie usually delayed?
75.69% of flights on the BOS to STT route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airline is most on time from Boston to Charlotte Amalie?
JetBlue Airways, at 77.56% on time across 322 flights. The least punctual on the route was Delta Air Lines at 70.83%.
How often are BOS to STT flights cancelled?
2.9% of scheduled flights did not operate — about 29 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
What is the best month to fly Boston to Charlotte Amalie?
April, when 88.5% of flights arrived on time. The worst was February at 59.6%.
When BOS to STT flights are late, how late are they?
About 78 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on BOS to STT during July 2024 – July 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →