Carrier route record
B6SFO→FLL
JetBlue Airways · San Francisco to Fort Lauderdale
- Flights
- 777
- Period
- July 2025 to June 2026
- Share of route
- 61%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on SFO to FLL lands a B+, level with the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 777 flights, with a median arrival 4 minutes early.
The US average over the same twelve months is 77.6%, 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
78.2%
Arrivals under 15 minutes late, of 772 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
0.39%
National rate is 1.81%
Whole route
81.2%
Every carrier on SFO to FLL, 1,270 flights
These figures cover 777 flights between July 2025 and June 2026. The median arrival is 4 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
JetBlue against every carrier on SFO to FLL
JetBlue flew 777 of the 1,270 flights on SFO to FLL, most of the route. Its 78.2% on time is 3 points worse than the route as a whole, which runs 81.2%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from United at 85.9% to JetBlue at 78.2%.
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 | 493 | 85.9% | 46 min | 0.41% | A+ |
| JetBlue Airways (this page) | 777 | 78.2% | 71 min | 0.39% | B+ |
Flight by flight
JetBlue flight numbers on SFO to FLL
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 19 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am53 flights88.7%
- 8am–11am167 flights85.5%
- 11am–2pm172 flights69.4%
- 2pm–5pm22 flights—
- 5pm–8pm—
- 8pm–5am363 flights77.3%
Scale runs 60% 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 69.4% 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. July was the busiest month here, with 82 flights.
Across the week, Friday is the strongest day at 80.2% on time and Sunday the weakest at 75.9%. 4 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. Carrier accounts for 46% of the 12,000 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.
- 46%Carrier
- 36%Late-arriving aircraft
- 18%National Airspace System
36% 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 12,000 reported delay minutes here, that single category outweighs weather by 36 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 11,964 reported delay minutes.
The largest share of delay minutes, 46%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 5,524 of the 12,000 delay minutes reported here.
Cancellations are rare at 0.39%, below the national 1.81% 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
7.1% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says 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 76.7% on time across 774 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. 777 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. 777 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 78.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 772 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 FLL85.9%
- 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 7.04 million flight records
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.