Flight number record
B6 320
JetBlue Airways · Atlanta to New York
- Route
- ATL → JFK
- Departs
- 07:45
- Flights
- 272
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s B6 320, check with JetBlue Airways.
B6 320 earns an A−. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 2.3 hours. That rests on 272 flights, with a median arrival 8 minutes early.
Set against the rest of the country, B6 320's record is 8 points better than the US average of 77.6%. That gap is worth roughly 78 fewer late arrivals for every thousand flights.
Key figures
On time
85.4%
Arrivals under 15 minutes late, of 260 completed flights
Avg delay
138 min
Across delayed arrivals only, not all flights
Cancelled
4.41%
National rate is 1.81%
1 hour+ late
8.1%
National rate is 8.1%
These figures cover 272 flights between July 2025 and June 2026. Beyond the headline rate, 8.1% 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 320 flies
B6 320 flies ATL to JFK without a single fixed slot. Its most common scheduled departure was 07:45, used on 67 of 272 flights, with 07:06 (30 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 07:4567 flights24.6%
- Departs 07:0630 flights11.0%
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 07:45 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and B6 320 runs 4 points worse at 85.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Against the route
B6 320 next to ATL to JFK
Every carrier on ATL to JFK combined arrived on time 75.3% of the time across 4,263 flights, so B6 320 is 10 points ahead of it. JetBlue flew 1,080 flights on the same city pair under all its flight numbers, including this one, and those ran 70.6% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight beats by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 320thin sample | 272 | 85.4% | 138 min | 4.41% | A− |
| All JetBlue Airways on ATL–JFK | 1,080 | 70.6% | 100 min | 4.26% | C− |
| All carriers on ATL–JFK | 4,263 | 75.3% | 83 min | 2.35% | B |
| JetBlue Airways, whole network | 234,468 | 72.7% | 76 min | 2.56% | C |
Across the year
B6 320 quarter by quarter
B6 320 did not run the same all year. Its best quarter was Oct–Dec 2025 at 88.0% on time and its weakest Jan–Mar 2026 at 78.0%, a swing of 10 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 flights86.7%
- Oct–Dec 202590 flights88.0%
- Jan–Mar 202644 flights78.0%
- Apr–Jun 202654 flights84.9%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, B6 320 ranged from 80.0% on Sunday to 87.5% on Friday. With about 39 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.
Delay causes
Why B6 320 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 46% of the 5,241 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%Late-arriving aircraft
- 36%Carrier
- 18%National Airspace System
46% 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 5,241 reported delay minutes here, that single category outweighs weather by 46 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 5,241 delay minutes reported on B6 320.
Cancellations run at 4.41%, against 1.81% nationally. That is roughly one flight in 25 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
8.1% 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 about 2.3 hours, which a normal layover absorbs.
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 272 flights under B6 320 in the data flew ATL to JFK. 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. 272 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 320
For a booking, the cancellation rate is the figure to plan around on B6 320: 4.41% of its 272 scheduled flights did not operate. A late arrival costs about 2.3 hours, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- ATL to JFK, every carrier and departure
- JFK to ATL, the return direction
- Delta Air Lines 2398 on the same route76.1%
- Delta Air Lines 2380 on the same route81.3%
- Delta Air Lines 2420 on the same route91.0%
- Delta Air Lines 2386 on the same route78.4%
- Frontier Airlines 4818 on the same route53.5%
- Delta Air Lines 1034 on the same route91.8%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- John F. Kennedy International (JFK) 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.