Carrier route record
B6FLL→SFO
JetBlue Airways · Fort Lauderdale to San Francisco
- Flights
- 754
- 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 FLL to SFO sits in the middle of the pack with a B+. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 754 flights, with a median arrival 4 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate JetBlue on FLL to SFO from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
75.2%
Arrivals under 15 minutes late, of 751 completed flights
Avg delay
58 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.89%
Whole route
78.7%
Every carrier on FLL to SFO, 1,236 flights
These figures cover 754 flights between September 2025 and August 2026. Beyond the headline rate, 8.7% 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 FLL to SFO
JetBlue flew 754 of the 1,236 flights on FLL to SFO, most of the route. Its 75.2% on time is 4 points worse than the route as a whole, which runs 78.7%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from United at 84.2% to JetBlue at 75.2%.
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 | 482 | 84.2% | 60 min | 0.00% | B+ |
| JetBlue Airways (this page) | 754 | 75.2% | 58 min | 0.27% | B+ |
Flight by flight
JetBlue flight numbers on FLL to SFO
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 26 points, against half a point between the best and worst carrier.
- 5am–8am310 flights88.4%
- 8am–11am79 flights81.0%
- 11am–2pm—
- 2pm–5pm—
- 5pm–8pm19 flights—
- 8pm–5am346 flights62.5%
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 62.5% on time, against 88.4% for the 5am–8am 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 346 flights scheduled in it.
Across the year
JetBlue on FLL to SFO through the year
June is the worst month at 63.3% on time, 22 points below May, the best at 85.5%. 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. December was the busiest month here, with 77 flights.
Across the week, Saturday is the strongest day at 84.4% on time and Thursday the weakest at 65.1%, a spread of 19 points.
Arrival by arrival
How late JetBlue on FLL to SFO runs when it is late
JetBlue on FLL to SFO often beats the schedule: 227 of 751 completed flights, 30%, arrived 15 minutes or more early. The 186 late arrivals split 69 under half an hour, 52 between 30 and 60 minutes, and 65 an hour or more.
- 15+ min early227 flights30.2%
- Within 15 min338 flights45.0%
- 15–29 min late69 flights9.2%
- 30–59 min late52 flights6.9%
- 1–2 hours late43 flights5.7%
- 2+ hours late22 flights2.9%
Scale runs 0% to 100%.
Share of 751 completed flights by arrival against schedule.
54 of 190 late departures made up the time and arrived on time, 28% of them. In the other direction, 50 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 SFO.
The worst days
Worst days for JetBlue on FLL to SFO
The latest arrival of the period was on 3 March 2026, 3 hours 59 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 |
|---|---|---|
| 3 March 2026 | 3 hours 59 minutes | Carrier |
| 5 April 2026 | 3 hours 36 minutes | Late-arriving aircraft |
| 21 February 2026 | 3 hours 19 minutes | Carrier |
| 16 March 2026 | 3 hours 16 minutes | Carrier |
| 25 December 2025 | 2 hours 56 minutes | Carrier |
Delay causes
Why JetBlue runs late on this route
Late-arriving aircraft accounts for 43% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.
- 43%Late-arriving aircraft
- 29%National Airspace System
- 25%Carrier
- 2%Extreme weather
- 1%Security
43% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 11,000 reported delay minutes here, that single category outweighs weather by 22 to one. The split is drawn from 10,826 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 88.4% on time here.
Cancellations are rare at 0.27%, 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
8.7% 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 about 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 76.5% on time across 757 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. 754 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 SFO
Put together: treat all of this as provisional. 754 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 75.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 751 completed flights over 12 months sit behind that.
Related
Where to go next
- FLL to SFO, every carrier
- JetBlue on SFO to FLL, the return leg
- United Airlines on FLL to SFO84.2%
- JetBlue Airways network-wide record
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- San Francisco International (SFO) 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.