Carrier route record
B6FLL→PHL
JetBlue Airways · Fort Lauderdale to Philadelphia
- Flights
- 675
- Period
- July 2025 to June 2026
- Share of route
- 20%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on FLL to PHL sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 675 flights. The strongest carrier on the route with a full sample, American Airlines, flew 1,449 at 77.6% on time.
American Airlines is the most reliable of the three carriers covered here at 77.6% on time across 1,449 flights.
Key figures
On time
73.8%
Arrivals under 15 minutes late, of 661 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
1.78%
National rate is 1.81%
Whole route
73.2%
Every carrier on FLL to PHL, 3,410 flights
These figures cover 675 flights between July 2025 and June 2026. Beyond the headline rate, 10.3% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
JetBlue against every carrier on FLL to PHL
JetBlue flew 675 of the 3,410 flights on FLL to PHL, about 20% of it. Its 73.8% on time is about level with the route as a whole at 73.2%. Ranked by on-time rate it is number two of four carriers on the route, where the range runs from American at 77.6% to Frontier at 64.5%.
The choice of carrier is not cosmetic here. American Airlines arrives on time 77.6% of the time; Frontier Airlines manages 64.5%. Sample sizes sit next to every figure, because a two-point gap across 577 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlines | 1,449 | 77.6% | 114 min | 2.76% | B |
| JetBlue Airways (this page) | 675 | 73.8% | 66 min | 1.78% | C |
| Spirit Airlines | 709 | 70.6% | 72 min | 4.80% | C− |
| Frontier Airlines | 577 | 64.5% | 107 min | 2.60% | D |
Spirit Airlines cancels 4.8% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Departure window
When JetBlue runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 28 points, against 13 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am—
- 8am–11am208 flights91.0%
- 11am–2pm75 flights72.0%
- 2pm–5pm145 flights63.4%
- 5pm–8pm3 flights—
- 8pm–5am244 flights65.8%
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 91.0% of the time, against 63.4% for the afternoon window. That is 28 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8pm–5am window is the busiest, with 244 flights scheduled in it.
Across the year
JetBlue on FLL to PHL through the year
October is the best month on the calendar at 86.9% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. August was the busiest month here, with 62 flights.
Across the week, Wednesday is the strongest day at 85.2% on time and Sunday the weakest at 67.0%. 18 points is a smaller lever than departure hour, but it is free.
Delay causes
Why JetBlue runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 11,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 44%Late-arriving aircraft
- 33%Carrier
- 18%National Airspace System
- 6%Extreme weather
- 0%Security
44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 11,000 reported delay minutes here, that single category outweighs weather by 8 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 11,388 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 91.0% on time here.
Cancellations sit at 1.78% against a national 1.81%, which is ordinary. Diversions add another 0.30%.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.3% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 993 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg is a different operation and performs like one: it runs 70.1% on time across 674 flights, 4 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 4 points of difference.
One caution: this is a thin sample. 675 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking JetBlue on FLL to PHL
Put together: treat all of this as provisional. 675 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 73.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 661 completed flights over 12 months sit behind that.
Related
Where to go next
- FLL to PHL, every carrier
- JetBlue on PHL to FLL, the return leg
- American Airlines on FLL to PHL77.6%
- Spirit Airlines on FLL to PHL70.6%
- Frontier Airlines on FLL to PHL64.5%
- JetBlue Airways network-wide record
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- Philadelphia International (PHL) delay statistics
- Same route, different airline: where the carrier you pick matters most
- Why the first flight of the morning is statistically safest
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.