Flight number record
DL 2522
Delta Air Lines · New Orleans to Atlanta
- Route
- MSY → ATL
- Departs
- 07:30
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2522, check with Delta Air Lines.
DL 2522 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 12 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 365 flights, with a median arrival 11 minutes early.
Set against the rest of the country, DL 2522's record is 12 points better than the US average of 77.3%. That gap is worth roughly 122 fewer late arrivals for every thousand flights.
Key figures
On time
89.5%
Arrivals under 15 minutes late, of 362 completed flights
Avg delay
87 min
Across delayed arrivals only, not all flights
Cancelled
0.82%
National rate is 1.89%
1 hour+ late
4.4%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 11 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When DL 2522 flies
DL 2522 flies MSY to ATL without a single fixed slot. Its most common scheduled departure was 07:30, used on 69 of 365 flights, with 07:28 (53 flights) next.
- Departs 07:3069 flights18.9%
- Departs 07:2853 flights14.5%
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 07:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 2522 runs level with that at 89.5%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
DL 2522 next to MSY to ATL
Every carrier on MSY to ATL combined arrived on time 82.2% of the time across 4,004 flights, so DL 2522 is 7 points ahead of it. Delta flew 3,278 flights on the same city pair under all its flight numbers, including this one, and those ran 86.7% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 8 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2522 | 365 | 89.5% | 87 min | 0.82% | A+ |
| All Delta Air Lines on MSY–ATL | 3,278 | 86.7% | 71 min | 1.49% | A |
| All carriers on MSY–ATL | 4,004 | 82.2% | 68 min | 1.47% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2522 quarter by quarter
DL 2522 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Oct–Dec 2025 at 82.2%, a swing of 18 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 flights100.0%
- Oct–Dec 202592 flights82.2%
- Jan–Mar 202690 flights89.9%
- Apr–Jun 202691 flights93.4%
- Jul–Sep 202662 flights88.7%
Scale runs 75% to 100%.
By weekday, DL 2522 ranged from 84.6% on Saturday to 94.2% on Wednesday. With about 52 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late DL 2522 runs when it is late
DL 2522 often beats the schedule: 119 of 362 completed flights, 33%, arrived 15 minutes or more early. The 38 late arrivals split 11 under half an hour, 11 between 30 and 60 minutes, and 16 an hour or more.
- 15+ min early119 flights32.9%
- Within 15 min205 flights56.6%
- 15–29 min late11 flights3.0%
- 30–59 min late11 flights3.0%
- 1–2 hours late10 flights2.8%
- 2+ hours late6 flights1.7%
Scale runs 0% to 100%.
Share of 362 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 36 departures that left 15 minutes late or more, only 3 made it up before arrival. Only 5 left on time and still arrived late.
The worst days
Worst days for DL 2522
The latest arrival of the period was on 11 July 2026, 12 hours 50 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 11 July 2026 | 12 hours 50 minutes | Carrier |
| 14 January 2026 | 5 hours 10 minutes | Carrier |
| 3 November 2025 | 3 hours 50 minutes | Extreme weather |
| 7 December 2025 | 2 hours 40 minutes | National Airspace System |
| 8 May 2026 | 2 hours 14 minutes | Carrier |
Delay causes
Why DL 2522 runs late
Carrier accounts for 72% of the 3,317 delay minutes carriers reported here, and the remaining four split what is left.
- 72%Carrier
- 20%National Airspace System
- 8%Extreme weather
The largest share of delay minutes, 72%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,394 of the 3,317 delay minutes reported here. The split is drawn from 3,317 delay minutes reported on DL 2522.
Cancellations are rare at 0.82%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.4% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
Every one of the 365 flights under DL 2522 in the data flew MSY 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. 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 2522
For a booking, DL 2522 has one of the better records a US domestic flight can show: 89.5% on time and 0.82% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- MSY to ATL, every carrier and departure
- ATL to MSY, the return direction
- Delta Air Lines 1534 on the same route91.5%
- Delta Air Lines 2542 on the same route85.7%
- Delta Air Lines 3128 on the same route92.8%
- Delta Air Lines 1547 on the same route90.6%
- Delta Air Lines 3157 on the same route76.2%
- Louis Armstrong New Orleans International (MSY) 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
- Worst months to fly in the US, ranked by the data
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.