Flight number record
DL 975
Delta Air Lines · New York to Atlanta
- Route
- LGA → ATL
- Departs
- 20:30
- Flights
- 294
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 975, check with Delta Air Lines.
DL 975 draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 294 flights, with a median arrival 10 minutes early.
The national on-time rate over the same period is 77.3%, so DL 975 runs 11 points behind the country as a whole. Across a thousand flights that is about 109 extra late arrivals.
Key figures
On time
66.4%
Arrivals under 15 minutes late, of 271 completed flights
Avg delay
84 min
Across delayed arrivals only, not all flights
Cancelled
7.82%
National rate is 1.89%
1 hour+ late
14.4%
National rate is 8.3%
These figures cover 294 flights between September 2025 and August 2026. Beyond the headline rate, 14.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 975 flies
DL 975 flies LGA to ATL without a single fixed slot. Its most common scheduled departure was 20:30, used on 170 of 294 flights, with 20:00 (105 flights) next.
- Departs 20:30170 flights57.8%
- Departs 20:00105 flights35.7%
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 20:30 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and DL 975 runs 4 points worse at 66.4%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
DL 975 next to LGA to ATL
Every carrier on LGA to ATL combined arrived on time 75.5% of the time across 8,500 flights, so DL 975 is 9 points behind it. Delta flew 4,935 flights on the same city pair under all its flight numbers, including this one, and those ran 79.1% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 15 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 975thin sample | 294 | 66.4% | 84 min | 7.82% | C− |
| All Delta Air Lines on LGA–ATL | 4,935 | 79.1% | 73 min | 3.55% | B− |
| All carriers on LGA–ATL | 8,500 | 75.5% | 79 min | 4.36% | B− |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 975 quarter by quarter
DL 975 did not run the same all year. Its best quarter was Jan–Mar 2026 at 76.5% on time and its weakest Oct–Dec 2025 at 53.1%, a swing of 23 points on roughly 74 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 202526 flights—
- Oct–Dec 202568 flights53.1%
- Jan–Mar 202674 flights76.5%
- Apr–Jun 202676 flights70.0%
- Jul–Sep 202650 flights55.8%
Scale runs 45% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, DL 975 did best on Wednesday at 77.1% on time and worst on Sunday at 56.1%. Each day rests on about 42 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 975 runs when it is late
DL 975 often beats the schedule: 123 of 271 completed flights, 45%, arrived 15 minutes or more early. The 91 late arrivals split 26 under half an hour, 26 between 30 and 60 minutes, and 39 an hour or more.
- 15+ min early123 flights45.4%
- Within 15 min57 flights21.0%
- 15–29 min late26 flights9.6%
- 30–59 min late26 flights9.6%
- 1–2 hours late23 flights8.5%
- 2+ hours late16 flights5.9%
Scale runs 0% to 100%.
Share of 271 completed flights by arrival against schedule.
25 of 107 late departures made up the time and arrived on time, 23% of them. 9 flights left on time and still arrived late.
The worst days
Worst days for DL 975
The latest arrival of the period was on 11 March 2026, 18 hours 43 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 11 March 2026 | 18 hours 43 minutes | National Airspace System |
| 6 March 2026 | 6 hours | National Airspace System |
| 26 January 2026 | 5 hours 40 minutes | Late-arriving aircraft |
| 5 July 2026 | 3 hours 46 minutes | National Airspace System |
| 9 July 2026 | 3 hours 44 minutes | National Airspace System |
Delay causes
Why DL 975 runs late
Late-arriving aircraft accounts for 47% of the 7,684 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Late-arriving aircraft
- 34%National Airspace System
- 19%Carrier
47% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,684 reported delay minutes here, that single category outweighs weather by 47 to one. The split is drawn from 7,684 delay minutes reported on DL 975.
Cancellations run at 7.82%, against 1.89% nationally. That is about one flight in twelve 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
14.4% 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 762 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 two other city pairs in the data, including BTV to ATL (1) and ATL to BTV (1), but none flew often enough under DL 975 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to ATL only.
One caution: this is a thin sample. 294 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 975
For a booking, the cancellation rate is the figure to plan around on DL 975: 7.82% of its 294 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- LGA to ATL, every carrier and departure
- ATL to LGA, the return direction
- Delta Air Lines 550 on the same route89.4%
- Frontier Airlines 3287 on the same route60.8%
- Delta Air Lines 992 on the same route86.0%
- Delta Air Lines 968 on the same route74.1%
- Delta Air Lines 993 on the same route82.6%
- Delta Air Lines 974 on the same route79.6%
- LaGuardia (LGA) delay statistics
- Hartsfield-Jackson Atlanta International (ATL) 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.