Flight profile · Frontier Airlines
F93937
San Juan (SJU) to Hartford (BDL) · scheduled 6:00 AM – 8:38 PM
How F93937 performs
594 operations, 2023-11-17 to 2026-06-30.
F93937 arrived on time 61.6% of the time, against 66.2% for all SJU → BDL flights — this specific departure is 4.6 percentage points worse than the route as a whole. Against Frontier Airlines’s own flights on this route it is 2.2 points better.
Source: US DOT Bureau of Transportation Statistics · 594 operations between 2023-11-17 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| F93937 | 61.6% | 1.85% | 4 min | 13.6% | 594 |
| Frontier Airlines on SJU → BDL | 59.4% | 2.10% | 7 min | 15.4% | 857 |
| All SJU → BDL flights | 66.2% | 1.58% | 1 min | 12.9% | 2,980 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-11-17 to 2026-06-30
Why F93937 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — 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
Share of the delay minutes US DOT attributed to each cause for F93937 on SJU → BDL. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on SJU → BDL
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| B61476 | JetBlue | 74.5% | 4 min early | 938 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 594 records of F93937 operating SJU → BDL, 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.