Carrier route record
B6SFO→FLL
JetBlue Airways · San Francisco to Fort Lauderdale
- Flights
- 757
- Period
- September 2025 to August 2026
- Share of route
- 61%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on SFO to FLL lands a B+, about a point worse than the national rate of 77.3%. About one flight in four arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 757 flights, with a median arrival 3 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate JetBlue on SFO to FLL from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
76.5%
Arrivals under 15 minutes late, of 754 completed flights
Avg delay
69 min
Across delayed arrivals only, not all flights
Cancelled
0.13%
National rate is 1.89%
Whole route
79.3%
Every carrier on SFO to FLL, 1,242 flights
These figures cover 757 flights between September 2025 and August 2026. Beyond the headline rate, 8.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
JetBlue against every carrier on SFO to FLL
JetBlue flew 757 of the 1,242 flights on SFO to FLL, most of the route. Its 76.5% on time is 3 points worse than the route as a whole, which runs 79.3%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from United at 83.5% to JetBlue at 76.5%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlines | 485 | 83.5% | 44 min | 0.00% | B+ |
| JetBlue Airways (this page) | 757 | 76.5% | 69 min | 0.13% | B+ |
Flight by flight
JetBlue flight numbers on SFO to FLL
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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 23 points, against half a point between the best and worst carrier.
- 5am–8am53 flights88.7%
- 8am–11am167 flights85.5%
- 11am–2pm172 flights65.9%
- 2pm–5pm2 flights—
- 5pm–8pm—
- 8pm–5am363 flights75.5%
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 65.9% on time against 88.7% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 8pm–5am window is the busiest, with 363 flights scheduled in it.
Across the year
JetBlue on SFO to FLL through the year
November is the best month on the calendar at 89.2% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. December was the busiest month here, with 77 flights.
Across the week, Wednesday is the strongest day at 78.3% on time and Sunday the weakest at 73.4%, a spread of 5 points.
Arrival by arrival
How late JetBlue on SFO to FLL runs when it is late
The 177 late arrivals split 57 under half an hour, 58 between 30 and 60 minutes, and 62 an hour or more.
- 15+ min early176 flights23.3%
- Within 15 min401 flights53.2%
- 15–29 min late57 flights7.6%
- 30–59 min late58 flights7.7%
- 1–2 hours late36 flights4.8%
- 2+ hours late26 flights3.4%
Scale runs 0% to 100%.
Share of 754 completed flights by arrival against schedule.
22 of 145 late departures made up the time and arrived on time, 15% of them. In the other direction, 54 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at FLL.
The worst days
Worst days for JetBlue on SFO to FLL
The latest arrival of the period was on 11 October 2025, 16 hours 4 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 11 October 2025 | 16 hours 4 minutes | Carrier |
| 10 November 2025 | 12 hours 13 minutes | Carrier |
| 21 December 2025 | 6 hours 8 minutes | Carrier |
| 10 February 2026 | 3 hours 35 minutes | Carrier |
| 28 March 2026 | 3 hours 24 minutes | Late-arriving aircraft |
Delay causes
Why JetBlue runs late on this route
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 12,000 reported delay minutes.
- 41%Carrier
- 41%Late-arriving aircraft
- 18%National Airspace System
41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 12,000 reported delay minutes here, that single category outweighs weather by 41 to one. The split is drawn from 12,245 reported delay minutes.
The largest share of delay minutes, 41%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 5,058 of the 12,000 delay minutes reported here.
Cancellations are rare at 0.13%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here costs
8.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
At 2,584 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The return leg runs 75.2% on time across 754 flights, within about a point 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. 757 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 SFO to FLL
Put together: treat all of this as provisional. 757 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 76.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 754 completed flights over 12 months sit behind that.
Related
Where to go next
- SFO to FLL, every carrier
- JetBlue on FLL to SFO, the return leg
- United Airlines on SFO to FLL83.5%
- JetBlue Airways network-wide record
- San Francisco International (SFO) delay statistics
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
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.