BDL to SJU flight delays
Hartford, CT (BDL) San Juan, PR (SJU) · 1,666 miles
961 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
63.52%
Arrived on time
Within 15 minutes of schedule
1.87%
Cancelled
Share of scheduled flights
94 min
When late, late by
Average across delayed arrivals
36 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In May it ran 29 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.
This route does worse than its own airport. BDL as a whole runs 17.4 points more punctual than these flights, which points at something specific to the route — the time of day it is scheduled, or the aircraft that feed it — rather than the airport.
This is a late route. Flights from Hartford to San Juan miss their scheduled arrival often enough that a tight connection at the far end is a connection at risk.
The two directions do not behave alike. SJU to BDL arrives on time 7.4 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Which airline should you fly on this route?
Over January 2025 – August 2026, JetBlue Airways arrived on time most often on BDL to SJU. Frontier Airlines was late most often. Flights ran closest to schedule in May and worst in February.
Every airline on BDL to SJU
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 | 727 | 64.14% | 1.65% | 90 min | F |
| Frontier Airlines | 234 | 61.54% | 2.56% | 108 min | F |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
SJU to BDL San Juan back to Hartford 70.88% on time DOther routes from Hartford
Common questions
Are flights from Hartford to San Juan usually delayed?
63.52% of flights on the BDL to SJU route arrived within 15 minutes of schedule, so roughly 4 in every ten arrived late. That is worse than the average route in this record.
Which airline is most on time from Hartford to San Juan?
JetBlue Airways, at 64.14% on time across 727 flights. The least punctual on the route was Frontier Airlines at 61.54%.
How often are BDL to SJU flights cancelled?
1.87% of scheduled flights did not operate — about 19 in every thousand. That is in the normal range.
What is the best month to fly Hartford to San Juan?
May, when 73.9% of flights arrived on time. The worst was February at 44.9%.
When BDL to SJU flights are late, how late are they?
About 94 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 BDL to SJU during January 2025 – August 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 →