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DelayAtlas

Carrier route record

B6RDU→FLL

JetBlue Airways · Raleigh to Fort Lauderdale

Flights
668
Period
September 2025 to August 2026
Share of route
48%
Carriers
5
BGRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with JetBlue Airways.

JetBlue on RDU to FLL lands a B, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 668 flights, with a median arrival 8 minutes early.

The US average over the same twelve months is 77.3%, so there is little to separate JetBlue on RDU 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

79.5%

Arrivals under 15 minutes late, of 654 completed flights

Avg delay

78 min

Across delayed arrivals only, not all flights

Cancelled

2.10%

National rate is 1.89%

Whole route

77.2%

Every carrier on RDU to FLL, 1,402 flights

These figures cover 668 flights between September 2025 and August 2026. Beyond the headline rate, 8.9% 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 RDU to FLL

JetBlue flew 668 of the 1,402 flights on RDU to FLL, about 48% of it. Its 79.5% on time is 2 points better than the route as a whole, which runs 77.2%. Ranked by on-time rate it is number two of five carriers on the route, where the range runs from Delta at 80.8% to Spirit at 62.8%. Four of those carriers flew fewer than 365 flights here, so treat their positions as rough.

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.

On-time performance by carrier on RDU to FLL
AirlineFlightsOn timeAvg delayCancelledGrade
Delta Air Linesthin sample36480.8%67 min0.55%B+
JetBlue Airways (this page)66879.5%78 min2.10%B
Southwest Airlinesthin sample14276.3%62 min2.11%B
Frontier Airlinesthin sample7068.1%76 min1.43%C
Spirit Airlinesthin sample15862.8%75 min7.59%D−

Flight by flight

JetBlue flight numbers on RDU to FLL

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 24 points, against half a point between the best and worst carrier.

  • 5am–8am335 flights88.2%
  • 8am–11am89 flights79.5%
  • 11am–2pm41 flights82.1%
  • 2pm–5pm62 flights63.9%
  • 5pm–8pm131 flights64.3%
  • 8pm–5am10 flights—

Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 88.2% of the time, against 63.9% for the afternoon window. That is 24 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 335 flights scheduled in it.

Across the year

JetBlue on RDU to FLL through the year

On-time rate by calendar month79J83F79M84A89M83J70J78A90S89O84N61D
Darker means more delays. Figures are on-time percentages.September best, December worst

December is the weak month at 61.1% on time, against 90.0% in September. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. August was the busiest month here, with 93 flights.

Across the week, Wednesday is the strongest day at 85.3% on time and Monday the weakest at 75.2%, a spread of 10 points.

On-time rate by day of the week75.2Mon84.0Tue85.3Wed80.4Thu78.4Fri80.0Sat75.8Sun
Monday: 75.2 percent on time. Tuesday: 84.0 percent on time. Wednesday: 85.3 percent on time. Thursday: 80.4 percent on time. Friday: 78.4 percent on time. Saturday: 80.0 percent on time. Sunday: 75.8 percent on time

Arrival by arrival

How late JetBlue on RDU to FLL runs when it is late

JetBlue on RDU to FLL often beats the schedule: 226 of 654 completed flights, 35%, arrived 15 minutes or more early. The 134 late arrivals split 39 under half an hour, 37 between 30 and 60 minutes, and 58 an hour or more.

  • 15+ min early226 flights34.6%
  • Within 15 min294 flights45.0%
  • 15–29 min late39 flights6.0%
  • 30–59 min late37 flights5.7%
  • 1–2 hours late33 flights5.0%
  • 2+ hours late25 flights3.8%

Scale runs 0% to 100%.

Share of 654 completed flights by arrival against schedule.

20 of 135 late departures made up the time and arrived on time, 15% of them. 19 flights left on time and still arrived late.

The worst days

Worst days for JetBlue on RDU to FLL

The latest arrival of the period was on 18 May 2026, 8 hours 9 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.

The latest arrivals of JetBlue on RDU to FLL in the period
DateArrived late byLargest filed cause
18 May 20268 hours 9 minutesLate-arriving aircraft
18 December 20255 hours 14 minutesLate-arriving aircraft
6 July 20265 hours 14 minutesLate-arriving aircraft
10 August 20265 hours 12 minutesLate-arriving aircraft
16 April 20264 hours 42 minutesCarrier

Delay causes

Why JetBlue runs late on this route

Late-arriving aircraft accounts for 55% of the 10,000 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    55%
  • Carrier
    34%
  • National Airspace System
    10%
  • Extreme weather
    0%

55% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 10,000 reported delay minutes here, that single category outweighs weather by 55 to one. The split is drawn from 10,490 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 88.2% on time here.

Cancellations sit at 2.10% against a national 1.89%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

8.9% 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.

The 680 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 67.6% on time across 668 flights, 12 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 12 points of difference.

One caution: this is a thin sample. 668 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 RDU to FLL

Put together: treat all of this as provisional. 668 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 79.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 654 completed flights over 12 months sit behind that.

Related

Where to go next

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.