Carrier route record
B6FLL→PHL
JetBlue Airways · Fort Lauderdale to Philadelphia
- Flights
- 732
- Period
- September 2025 to August 2026
- Share of route
- 20%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on FLL to PHL carries a cancellation problem, not just a delay problem: 3.3% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 732 flights. The strongest carrier on the route with a full sample, American Airlines, flew 1,628 at 77.4% on time.
American Airlines is the most reliable of the three carriers covered here at 77.4% on time across 1,628 flights.
Key figures
On time
69.0%
Arrivals under 15 minutes late, of 706 completed flights
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
3.28%
National rate is 1.89%
Whole route
72.0%
Every carrier on FLL to PHL, 3,589 flights
These figures cover 732 flights between September 2025 and August 2026. Beyond the headline rate, 14.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
JetBlue against every carrier on FLL to PHL
JetBlue flew 732 of the 3,589 flights on FLL to PHL, about 20% of it. Its 69.0% on time is 3 points worse than the route as a whole, which runs 72.0%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from American at 77.4% to Frontier at 62.3%.
The choice of carrier is not cosmetic here. American Airlines arrives on time 77.4% of the time; Frontier Airlines manages 62.3%. Sample sizes sit next to every figure, because a two-point gap across 657 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlines | 1,628 | 77.4% | 116 min | 2.83% | B |
| Spirit Airlines | 572 | 71.3% | 71 min | 5.24% | C− |
| JetBlue Airways (this page) | 732 | 69.0% | 73 min | 3.28% | C− |
| Frontier Airlines | 657 | 62.3% | 107 min | 3.65% | D− |
Spirit Airlines cancels 5.2% 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.
Flight by flight
JetBlue flight numbers on FLL to PHL
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
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 38 points, against 15 points between the best and worst carrier.
- 5am–8am—
- 8am–11am148 flights90.2%
- 11am–2pm131 flights64.8%
- 2pm–5pm91 flights68.1%
- 5pm–8pm57 flights51.9%
- 8pm–5am305 flights63.7%
Scale runs 45% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 51.9% on time, against 90.2% for the 8am–11am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 8pm–5am window is the busiest, with 305 flights scheduled in it.
Across the year
JetBlue on FLL to PHL through the year
July is the worst month at 51.3% on time, 36 points below October, the best at 86.9%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. August was the busiest month here, with 93 flights.
Across the week, Wednesday is the strongest day at 81.8% on time and Monday the weakest at 60.7%, a spread of 21 points.
Arrival by arrival
How late JetBlue on FLL to PHL runs when it is late
JetBlue on FLL to PHL often beats the schedule: 207 of 706 completed flights, 29%, arrived 15 minutes or more early. The 219 late arrivals split 62 under half an hour, 58 between 30 and 60 minutes, and 99 an hour or more.
- 15+ min early207 flights29.3%
- Within 15 min280 flights39.7%
- 15–29 min late62 flights8.8%
- 30–59 min late58 flights8.2%
- 1–2 hours late62 flights8.8%
- 2+ hours late37 flights5.2%
Scale runs 0% to 100%.
Share of 706 completed flights by arrival against schedule.
40 of 236 late departures made up the time and arrived on time, 17% of them. 23 flights left on time and still arrived late.
The worst days
Worst days for JetBlue on FLL to PHL
The latest arrival of the period was on 3 August 2026, 6 hours 53 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 3 August 2026 | 6 hours 53 minutes | Late-arriving aircraft |
| 26 August 2026 | 6 hours 16 minutes | Late-arriving aircraft |
| 4 July 2026 | 5 hours 54 minutes | Late-arriving aircraft |
| 15 February 2026 | 5 hours 20 minutes | Carrier |
| 3 August 2026 | 4 hours 2 minutes | Late-arriving aircraft |
Delay causes
Why JetBlue runs late on this route
Late-arriving aircraft accounts for 50% of the 16,000 delay minutes carriers reported here, and the remaining four split what is left.
- 50%Late-arriving aircraft
- 30%Carrier
- 17%National Airspace System
- 4%Extreme weather
- 0%Security
50% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 16,000 reported delay minutes here, that single category outweighs weather by 14 to one. The split is drawn from 16,020 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 90.2% on time here.
Cancellations run at 3.28%, against 1.89% nationally. That is about one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
14.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection 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.
The return leg runs 70.9% on time across 730 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 732 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: the delay figures matter less here than the 3.28% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 706 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 PHL77.4%
- Spirit Airlines on FLL to PHL71.3%
- Frontier Airlines on FLL to PHL62.3%
- JetBlue Airways network-wide record
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- Philadelphia International (PHL) delay statistics
- The US routes with the most cancellations
- Same route, different airline: where the carrier you pick matters most
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.