Flight number record
DL 1387
Delta Air Lines · New York to New Orleans
- Route
- JFK → MSY
- Departs
- 16:30
- Flights
- 356
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1387, check with Delta Air Lines.
DL 1387 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 about an hour on average. That rests on 356 flights, with a median arrival 12 minutes early.
Key figures
On time
78.8%
Arrivals under 15 minutes late, of 344 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
3.37%
National rate is 1.89%
1 hour+ late
8.1%
National rate is 8.3%
These figures cover 356 flights between September 2025 and August 2026. Beyond the headline rate, 8.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 1387 flies
DL 1387 flies JFK to MSY without a single fixed slot. Its most common scheduled departure was 16:30, used on 56 of 356 flights, with 15:31 (55 flights) and 16:20 (53 flights) next.
- Departs 16:3056 flights15.7%
- Departs 15:3155 flights15.4%
- Departs 16:2053 flights14.9%
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 16:30 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 1387 runs 7 points better at 78.8%. 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 1387 next to JFK to MSY
Every carrier on JFK to MSY combined arrived on time 79.4% of the time across 1,142 flights, so DL 1387 is about level with it. Delta flew 720 flights on the same city pair under all its flight numbers, including this one, and those ran 81.6% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1387thin sample | 356 | 78.8% | 66 min | 3.37% | B− |
| All Delta Air Lines on JFK–MSY | 720 | 81.6% | 79 min | 5.42% | B− |
| All carriers on JFK–MSY | 1,142 | 79.4% | 76 min | 5.34% | B− |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1387 quarter by quarter
DL 1387 did not run the same all year. Its best quarter was Jan–Mar 2026 at 83.5% on time and its weakest Jul–Sep 2026 at 66.7%, a swing of 17 points on roughly 71 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 202587 flights81.0%
- Jan–Mar 202689 flights83.5%
- Apr–Jun 202689 flights79.5%
- Jul–Sep 202661 flights66.7%
Scale runs 60% to 90%.
By weekday, DL 1387 did best on Saturday at 85.4% on time and worst on Tuesday at 71.4%. Each day rests on about 51 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 1387 runs when it is late
DL 1387 often beats the schedule: 160 of 344 completed flights, 47%, arrived 15 minutes or more early. The 73 late arrivals split 23 under half an hour, 22 between 30 and 60 minutes, and 28 an hour or more.
- 15+ min early160 flights46.5%
- Within 15 min111 flights32.3%
- 15–29 min late23 flights6.7%
- 30–59 min late22 flights6.4%
- 1–2 hours late17 flights4.9%
- 2+ hours late11 flights3.2%
Scale runs 0% to 100%.
Share of 344 completed flights by arrival against schedule.
8 of 59 late departures made up the time and arrived on time, 14% of them. In the other direction, 22 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at MSY.
The worst days
Worst days for DL 1387
The latest arrival of the period was on 6 August 2026, 6 hours 34 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 August 2026 | 6 hours 34 minutes | Late-arriving aircraft |
| 30 October 2025 | 4 hours 55 minutes | Late-arriving aircraft |
| 3 August 2026 | 3 hours 23 minutes | Late-arriving aircraft |
| 23 June 2026 | 3 hours 17 minutes | Carrier |
| 24 May 2026 | 2 hours 53 minutes | Carrier |
Delay causes
Why DL 1387 runs late
Late-arriving aircraft accounts for 47% of the 4,840 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Late-arriving aircraft
- 27%National Airspace System
- 26%Carrier
- 0%Extreme weather
47% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,840 reported delay minutes here, that single category outweighs weather by 47 to one. The split is drawn from 4,840 delay minutes reported on DL 1387.
Cancellations run at 3.37%, against 1.89% nationally. That is about one flight in 30 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 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The 1,182 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 same number turns up on one other city pair in the data, including MSY to JFK (241), but none flew often enough under DL 1387 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to JFK to MSY only.
One caution: this is a thin sample. 356 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 1387
For a booking, the cancellation rate is the figure to plan around on DL 1387: 3.37% of its 356 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- JFK to MSY, every carrier and departure
- MSY to JFK, the return direction
- Delta Air Lines 1368 on the same route84.6%
- John F. Kennedy International (JFK) delay statistics
- Louis Armstrong New Orleans International (MSY) 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
- Why the first flight of the morning is statistically safest
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.