Flight profile · JetBlue
B61553
Fort Lauderdale (FLL) to San Juan (SJU) · scheduled 10:00 AM – 12:51 PM
How B61553 performs
1,073 operations, July 2023 – July 2026.
B61553 arrived on time 68.5% of the time, against 70.5% for all FLL → SJU flights, so this departure is 2.0 percentage points worse than the route as a whole. Against JetBlue’s own flights on this route it is 4.2 points worse.
Source: US DOT Bureau of Transportation Statistics · 1,073 operations, July 2023 – July 2026 · If B61553 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where B61553 is right now
A live reading, only if you ask for it. It is not part of the reliability record above.
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| B61553 | 68.5% | 0.47% | 0 min | 8.4% | 1,073 |
| JetBlue on FLL → SJU | 72.7% | 0.77% | -3 min | 8.7% | 4,522 |
| All FLL → SJU flights | 70.5% | 0.93% | -1 min | 9.3% | 7,202 |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
Why B61553 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for B61553 on FLL → SJU. Only delays of 15 minutes or more are attributed.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Does a late aircraft delay this flight?
How often the plane that flies B61553 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, B61553 pushed back an average of 46 minutes late; when it came in on time or early, an average of 10 minutes late.
Each departure is matched to the flight the same aircraft flew into FLL just before it, using the tail number in the DOT file, 964 of 1,068 departures in all. A departure is left out when that flight is unknown, was cancelled or diverted, or the aircraft had sat for more than 12 hours. A flight the airline cancelled never left and is not in the count, and one flown by a substitute aircraft is matched to the aircraft that flew it, not to the one first planned.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late | Left 15+ late after a late inbound | Left 15+ late after an on-time inbound |
|---|---|---|---|
| B61553 | 14% | 73% | 23% |
| Network, same turn | 18% | 85% | 10% |
The schedule leaves a normal turn: enough time to clean and board if the aircraft is on time, little to spare if it is not.
The network row is every flight with a scheduled turn of 45 to 59 minutes. How often B61553’s aircraft landed 15 or more minutes late is lower than the network’s and, once the aircraft was late, how often B61553 left 15 or more minutes late is lower than the network’s.
More: Which Flight Numbers Pay for a Late Aircraft lists the flight numbers that pass a late aircraft on.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
From pushback to gate
When it leaves FLL late, does that still matter by the time it reaches SJU?
B61553 pushes back an average of 17.6 minutes late and reaches the gate at SJU an average of 12.9 minutes late. The 4.7 minutes between those two figures are slack the published schedule already carries, which is why a late pushback on this flight does not reliably become a late arrival. Its 18.1 minutes on the taxiways at FLL is about what any departure from the airport in that hour spends.
On arrival at SJU, B61553 spends 5.9 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is about what any arrival at SJU spends on the ground before reaching the gate.
Departure delay is averaged over every pushback and arrival delay over every completed arrival, so the two counts differ by the flights that never reached SJU. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 11,039 departures from FLL scheduled in the clock hour B61553 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at SJU (109,607 flights), not just B61553’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
The hour it leaves FLL
Part of any flight’s record belongs to the clock rather than to the flight. B61553 has one departure time, so this is what that time is worth.
On-time arrival rate. 11,039 departures from FLL are scheduled in the 10 AM–11 AM hour over the period, against 278,691 across the whole day.
B61553 is scheduled out of FLL at 10:00 AM, in the 10 AM–11 AM bank. Departures from FLL in that hour arrive on time 81.5% of the time against 72.6% across the airport’s whole day — the slot alone is worth 8.9 points better before anything about this particular flight is considered.
The two airport figures cover every departure from FLL to every destination, so they describe the slot rather than this journey — the like-for-like comparison against the route is above. Hours are scheduled local, and a number whose schedule moved between banks inside the period has no single hour and is not described here at all. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Hours below 120 departures are not scored.
By day of week
Does B61553 run worse on particular days?
Wednesday is historically the most reliable day and Monday the least, a gap of 16.0 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Days with fewer than 120 operations are not scored.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
51 min late
against a median of 0 min early
Percentiles over 1,073 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| B61553 this flight | JetBlue | 68.5% | 0 min early | 1,073 |
| B61453 | JetBlue | 64.1% | 2 min late | 881 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. B61553 is placed in the same ordering rather than left out of it; the rows around it are the most punctual departures on the route, not all of them, so this is a comparison and not a rank. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 1,073 records of B61553 operating FLL → SJU, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
Analysis last recomputed