Flight number record
DL 1383
Delta Air Lines · Pittsburgh to Atlanta
- Route
- PIT → ATL
- Departs
- 07:05
- Flights
- 355
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1383, check with Delta Air Lines.
DL 1383 earns an A. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 16 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 355 flights, with a median arrival 15 minutes early.
Set against the rest of the country, DL 1383's record is 16 points better than the US average of 77.3%. That gap is worth roughly 157 fewer late arrivals for every thousand flights.
Key figures
On time
93.0%
Arrivals under 15 minutes late, of 342 completed flights
Avg delay
86 min
Across delayed arrivals only, not all flights
Cancelled
2.82%
National rate is 1.89%
1 hour+ late
3.2%
National rate is 8.3%
These figures cover 355 flights between September 2025 and August 2026. The median arrival is 15 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 1383 flies
DL 1383 flies PIT to ATL without a single fixed slot. Its most common scheduled departure was 07:05, used on 164 of 355 flights.
- Departs 07:05164 flights46.2%
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 07:05 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 1383 runs 4 points better at 93.0%. 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 1383 next to PIT to ATL
Every carrier on PIT to ATL combined arrived on time 89.2% of the time across 2,737 flights, so DL 1383 is 4 points ahead of it. Delta flew 2,452 flights on the same city pair under all its flight numbers, including this one, and those ran 89.6% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1383thin sample | 355 | 93.0% | 86 min | 2.82% | A |
| All Delta Air Lines on PIT–ATL | 2,452 | 89.6% | 75 min | 2.08% | A |
| All carriers on PIT–ATL | 2,737 | 89.2% | 69 min | 1.90% | A |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1383 quarter by quarter
Quarter by quarter DL 1383 held fairly steady: 96.7% in Jul–Sep 2025, 89.7% in Oct–Dec 2025, 90.6% in Jan–Mar 2026, 97.7% in Apr–Jun 2026 and 91.8% in Jul–Sep 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights96.7%
- Oct–Dec 202582 flights89.7%
- Jan–Mar 202690 flights90.6%
- Apr–Jun 202691 flights97.7%
- Jul–Sep 202662 flights91.8%
Scale runs 80% to 100%.
By weekday, DL 1383 ranged from 85.7% on Sunday to 96.0% on Friday. With about 51 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 1383 runs when it is late
DL 1383 often beats the schedule: 175 of 342 completed flights, 51%, arrived 15 minutes or more early. The 24 late arrivals split 10 under half an hour, 3 between 30 and 60 minutes, and 11 an hour or more.
- 15+ min early175 flights51.2%
- Within 15 min143 flights41.8%
- 15–29 min late10 flights2.9%
- 30–59 min late3 flights0.9%
- 1–2 hours late5 flights1.5%
- 2+ hours late6 flights1.8%
Scale runs 0% to 100%.
Share of 342 completed flights by arrival against schedule.
A late pushback is often recovered here: of 29 departures that left 15 minutes late or more, 9 still arrived on time. Only 4 left on time and still arrived late.
The worst days
Worst days for DL 1383
The latest arrival of the period was on 27 January 2026, 4 hours 42 minutes behind schedule; most of its delay minutes were filed as extreme weather. On four of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 27 January 2026 | 4 hours 42 minutes | Extreme weather |
| 2 December 2025 | 4 hours 41 minutes | Carrier |
| 24 October 2025 | 3 hours 24 minutes | Carrier |
| 23 October 2025 | 3 hours 5 minutes | Carrier |
| 12 July 2026 | 2 hours 34 minutes | Carrier |
Delay causes
Why DL 1383 runs late
Carrier accounts for 65% of the 2,066 delay minutes carriers reported here, and the remaining four split what is left.
- 65%Carrier
- 23%Extreme weather
- 12%National Airspace System
Extreme weather accounts for 23% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 3.8 times the usual weather exposure. The split is drawn from 2,066 delay minutes reported on DL 1383.
Cancellations run at 2.82%, against 1.89% nationally. That is roughly one flight in 40 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
Badly late arrivals are rare here: only 3.2% 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.
The 526 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 355 flights under DL 1383 in the data flew PIT 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. 355 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 1383
For a booking, the cancellation rate is the figure to plan around on DL 1383: 2.82% of its 355 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
- PIT to ATL, every carrier and departure
- ATL to PIT, the return direction
- Delta Air Lines 1504 on the same route91.5%
- Delta Air Lines 1353 on the same route83.4%
- Delta Air Lines 1363 on the same route92.7%
- Delta Air Lines 1380 on the same route92.9%
- Pittsburgh International (PIT) 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
- What a cancellation rate actually tells you (and what it hides)
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.