Flight number record
DL 2398
Delta Air Lines · Atlanta to New York
- Route
- ATL → JFK
- Departs
- 15:59
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2398, check with Delta Air Lines.
DL 2398 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 365 flights, with a median arrival 7 minutes early.
The national on-time rate over the same period is 77.3%, so DL 2398 runs 5 points behind the country as a whole. Across a thousand flights that is about 45 extra late arrivals.
Key figures
On time
72.8%
Arrivals under 15 minutes late, of 357 completed flights
Avg delay
96 min
Across delayed arrivals only, not all flights
Cancelled
1.37%
National rate is 1.89%
1 hour+ late
13.4%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. Beyond the headline rate, 13.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 2398 flies
DL 2398 flies ATL to JFK without a single fixed slot. Its most common scheduled departure was 15:59, used on 68 of 365 flights.
- Departs 15:5968 flights18.6%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 15:59 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 2398 runs level with that at 72.8%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
DL 2398 next to ATL to JFK
Every carrier on ATL to JFK combined arrived on time 74.6% of the time across 4,218 flights, so DL 2398 is 2 points behind it. Delta flew 2,445 flights on the same city pair under all its flight numbers, including this one, and those ran 78.4% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 8 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2398 | 365 | 72.8% | 96 min | 1.37% | C |
| All Delta Air Lines on ATL–JFK | 2,445 | 78.4% | 73 min | 1.55% | B |
| All carriers on ATL–JFK | 4,218 | 74.6% | 81 min | 2.80% | C |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2398 quarter by quarter
DL 2398 did not run the same all year. Its best quarter was Jan–Mar 2026 at 80.5% on time and its weakest Jul–Sep 2026 at 53.4%, a swing of 27 points on roughly 73 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 202530 flights80.0%
- Oct–Dec 202592 flights74.7%
- Jan–Mar 202690 flights80.5%
- Apr–Jun 202691 flights73.6%
- Jul–Sep 202662 flights53.4%
Scale runs 45% to 85%.
By weekday, DL 2398 did best on Wednesday at 78.8% on time and worst on Sunday at 63.3%. Each day rests on about 52 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2398 runs when it is late
DL 2398 often beats the schedule: 128 of 357 completed flights, 36%, arrived 15 minutes or more early. The 97 late arrivals split 22 under half an hour, 27 between 30 and 60 minutes, and 48 an hour or more.
- 15+ min early128 flights35.9%
- Within 15 min132 flights37.0%
- 15–29 min late22 flights6.2%
- 30–59 min late27 flights7.6%
- 1–2 hours late23 flights6.4%
- 2+ hours late25 flights7.0%
Scale runs 0% to 100%.
Share of 357 completed flights by arrival against schedule.
A late pushback is often recovered here: of 129 departures that left 15 minutes late or more, 41 still arrived on time. 9 flights left on time and still arrived late.
The worst days
Worst days for DL 2398
The latest arrival of the period was on 23 December 2025, 7 hours 8 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On three of the five worst days the largest share was filed as national airspace system delay.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 23 December 2025 | 7 hours 8 minutes | Carrier |
| 16 March 2026 | 6 hours 50 minutes | Late-arriving aircraft |
| 2 August 2026 | 6 hours | National Airspace System |
| 30 October 2025 | 5 hours 57 minutes | National Airspace System |
| 6 September 2025 | 5 hours 50 minutes | National Airspace System |
Delay causes
Why DL 2398 runs late
National Airspace System accounts for 48% of the 9,264 delay minutes carriers reported here, and the remaining four split what is left.
- 48%National Airspace System
- 34%Carrier
- 14%Late-arriving aircraft
- 3%Extreme weather
48% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 4,470 minutes out of 9,264, against a national NAS share of 21%. The split is drawn from 9,264 delay minutes reported on DL 2398.
Cancellations sit at 1.37% against a national 1.89%, which is ordinary. Diversions add another 0.82%.
Connections and routes
What a delay on this flight costs
13.4% 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 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.
Every one of the 365 flights under DL 2398 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. 365 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 DL 2398
For a booking, DL 2398 is a flight to put a long connection behind. 13.4% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.
Related
Where to go next
- ATL to JFK, every carrier and departure
- JFK to ATL, the return direction
- Delta Air Lines 2380 on the same route80.7%
- Delta Air Lines 2420 on the same route89.3%
- Frontier Airlines 4732 on the same route73.3%
- Delta Air Lines 1034 on the same route89.2%
- JetBlue Airways 320 on the same route83.8%
- Delta Air Lines 2378 on the same route67.3%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- John F. Kennedy International (JFK) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines flight number with a record
- The most and least reliable flight numbers in the US
- How often a connection fails at the major US hubs
A flight number here means Delta Air Lines’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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.