Carrier route record
B6DTW→FLL
JetBlue Airways · Detroit to Fort Lauderdale
- Flights
- 107
- Period
- September 2025 to August 2026
- Share of route
- 4%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on DTW to FLL lands a B−, level with the national rate of 77.3%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 107 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 1,808 at 73.6% on time.
The US average over the same twelve months is 77.3%, so there is little to separate JetBlue on DTW 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
77.2%
Arrivals under 15 minutes late, of 101 completed flights
Avg delay
95 min
Across delayed arrivals only, not all flights
Cancelled
4.67%
National rate is 1.89%
Whole route
71.5%
Every carrier on DTW to FLL, 2,692 flights
These figures cover 107 flights between September 2025 and August 2026. Beyond the headline rate, 10.9% 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 DTW to FLL
JetBlue flew 107 of the 2,692 flights on DTW to FLL, about 4% of it. Its 77.2% on time is 6 points better than the route as a whole, which runs 71.5%. Ranked by on-time rate it is first of four carriers on the route, where the range runs from JetBlue at 77.2% to Frontier at 59.7%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 73.6% of the time; Spirit Airlines manages 66.8%. Sample sizes sit next to every figure, because a two-point gap across 630 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| JetBlue Airways (this page)thin sample | 107 | 77.2% | 95 min | 4.67% | B− |
| Delta Air Lines | 1,808 | 73.6% | 69 min | 1.66% | C |
| Spirit Airlines | 630 | 66.8% | 68 min | 3.17% | C− |
| Frontier Airlinesthin sample | 147 | 59.7% | 61 min | 5.44% | D− |
Spirit Airlines cancels 3.2% 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.
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 21 points, against 7 points between the best and worst carrier.
- 5am–8am53 flights87.8%
- 8am–11am—
- 11am–2pm—
- 2pm–5pm54 flights67.3%
- 5pm–8pm—
- 8pm–5am—
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 87.8% of the time, against 67.3% for the afternoon window. That is 21 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 54 flights scheduled in it.
Across the year
JetBlue on DTW to FLL through the year
- Jul–Sep 2026107 flights77.2%
Scale runs 70% to 85%.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 77.2% on time across 107 flights.
Split by quarter, JetBlue on DTW to FLL logged 107 flights in Jul–Sep 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 77.2% annual figure is the one to use.
Arrival by arrival
How late JetBlue on DTW to FLL runs when it is late
JetBlue on DTW to FLL often beats the schedule: 43 of 101 completed flights, 43%, arrived 15 minutes or more early. The 23 late arrivals split 3 under half an hour, 9 between 30 and 60 minutes, and 11 an hour or more.
- 15+ min early43 flights42.6%
- Within 15 min35 flights34.7%
- 15–29 min late3 flights3.0%
- 30–59 min late9 flights8.9%
- 1–2 hours late6 flights5.9%
- 2+ hours late5 flights5.0%
Scale runs 0% to 100%.
Share of 101 completed flights by arrival against schedule.
6 of 25 late departures made up the time and arrived on time, 24% of them. 4 flights left on time and still arrived late.
The worst days
Worst days for JetBlue on DTW to FLL
The latest arrival of the period was on 10 August 2026, 10 hours 21 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Four of the five worst days fell in July 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 10 August 2026 | 10 hours 21 minutes | Carrier |
| 30 July 2026 | 2 hours 46 minutes | Carrier |
| 21 July 2026 | 2 hours 45 minutes | Carrier |
| 18 July 2026 | 2 hours 29 minutes | Carrier |
| 29 July 2026 | 2 hours 7 minutes | Carrier |
Delay causes
Why JetBlue runs late on this route
Carrier accounts for 62% of the 2,183 delay minutes carriers reported here, and the remaining four split what is left.
- 62%Carrier
- 30%Late-arriving aircraft
- 8%National Airspace System
The largest share of delay minutes, 62%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,354 of the 2,183 delay minutes reported here. The split is drawn from 2,183 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 87.8% on time here.
Cancellations run at 4.67%, against 1.89% nationally. That is about one flight in twenty 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
10.9% 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 1,127 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 is a different operation and performs like one: it runs 69.2% on time across 108 flights, 8 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 8 points of difference.
One caution: this is a thin sample. 107 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 DTW to FLL
Put together: the delay figures matter less here than the 4.67% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 101 completed flights over 12 months sit behind that.
Related
Where to go next
- DTW to FLL, every carrier
- JetBlue on FLL to DTW, the return leg
- Delta Air Lines on DTW to FLL73.6%
- Spirit Airlines on DTW to FLL66.8%
- Frontier Airlines on DTW to FLL59.7%
- JetBlue Airways network-wide record
- Detroit Metropolitan Wayne County (DTW) delay statistics
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- The US routes with the most cancellations
- 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.