Flight number record
B6 719
JetBlue Airways · New York to Atlanta
- Route
- JFK → ATL
- Departs
- 20:59
- Flights
- 270
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s B6 719, check with JetBlue Airways.
B6 719 draws a D−. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 270 flights, with a median arrival 2 minutes late.
The national on-time rate over the same period is 77.6%, so B6 719 runs 17 points behind the country as a whole. Across a thousand flights that is about 171 extra late arrivals.
Key figures
On time
60.5%
Arrivals under 15 minutes late, of 256 completed flights
Avg delay
76 min
Across delayed arrivals only, not all flights
Cancelled
5.19%
National rate is 1.81%
1 hour+ late
16.0%
National rate is 8.1%
These figures cover 270 flights between July 2025 and June 2026. Beyond the headline rate, 16.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When B6 719 flies
B6 719 flies JFK to ATL without a single fixed slot. Its most common scheduled departure was 20:59, used on 51 of 270 flights, with 20:55 (40 flights) and 16:55 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 20:5951 flights18.9%
- Departs 20:5540 flights14.8%
- Departs 16:5537 flights13.7%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 20:59 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and B6 719 runs 10 points worse at 60.5%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
B6 719 next to JFK to ATL
Every carrier on JFK to ATL combined arrived on time 76.7% of the time across 4,272 flights, so B6 719 is 16 points behind it. JetBlue flew 1,079 flights on the same city pair under all its flight numbers, including this one, and those ran 68.3% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight trails by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 719thin sample | 270 | 60.5% | 76 min | 5.19% | D− |
| All JetBlue Airways on JFK–ATL | 1,079 | 68.3% | 71 min | 3.99% | C− |
| All carriers on JFK–ATL | 4,272 | 76.7% | 77 min | 2.25% | B |
| JetBlue Airways, whole network | 234,468 | 72.7% | 76 min | 2.56% | C |
Across the year
B6 719 quarter by quarter
B6 719 did not run the same all year. Its best quarter was Jan–Mar 2026 at 80.4% on time and its weakest Jul–Sep 2025 at 54.4%, a swing of 26 points on roughly 68 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202584 flights54.4%
- Oct–Dec 202581 flights55.8%
- Jan–Mar 202655 flights80.4%
- Apr–Jun 202650 flights57.1%
Scale runs 45% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, B6 719 did best on Wednesday at 70.0% on time and worst on Sunday at 45.7%. Each day rests on about 39 flights, so a gap of 24 points is worth noticing but could still narrow in another year.
Delay causes
Why B6 719 runs late
One category carries most of the weight here. Carrier accounts for 47% of the 7,621 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.
- 47%Carrier
- 40%Late-arriving aircraft
- 12%National Airspace System
- 1%Extreme weather
- 0%Security
40% 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 7,621 reported delay minutes here, that single category outweighs weather by 40 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 7,621 delay minutes reported on B6 719.
Cancellations run at 5.19%, against 1.81% 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 routes
What a delay on this flight costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 16.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 760 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
Every one of the 270 flights under B6 719 in the data flew JFK to ATL. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 270 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 B6 719
For a booking, the cancellation rate is the figure to plan around on B6 719: 5.19% of its 270 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- JFK to ATL, every carrier and departure
- ATL to JFK, the return direction
- Delta Air Lines 2286 on the same route89.5%
- Delta Air Lines 2342 on the same route89.7%
- Delta Air Lines 2293 on the same route75.9%
- Delta Air Lines 2227 on the same route85.9%
- Delta Air Lines 2190 on the same route74.9%
- JetBlue Airways 519 on the same route74.6%
- John F. Kennedy International (JFK) delay statistics
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- JetBlue Airways on-time record
- Every JetBlue Airways flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means JetBlue Airways’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
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.