Flight number record
DL 1363
Delta Air Lines · Atlanta to Pittsburgh
- Route
- ATL → PIT
- Departs
- 09:10
- Flights
- 341
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1363, check with Delta Air Lines.
DL 1363 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 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs about 50 minutes. That rests on 341 flights, with a median arrival 7 minutes early.
Set against the rest of the country, DL 1363's record is 14 points better than the US average of 77.3%. That gap is worth roughly 137 fewer late arrivals for every thousand flights.
Key figures
On time
91.0%
Arrivals under 15 minutes late, of 335 completed flights
Avg delay
50 min
Across delayed arrivals only, not all flights
Cancelled
1.47%
National rate is 1.89%
1 hour+ late
2.4%
National rate is 8.3%
These figures cover 341 flights between September 2025 and August 2026. The median arrival is 7 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 1363 flies
DL 1363 flies ATL to PIT without a single fixed slot. Its most common scheduled departure was 09:10, used on 43 of 341 flights.
- Departs 09:1043 flights12.6%
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 09:10 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and DL 1363 runs 7 points better at 91.0%. 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 1363 next to ATL to PIT
Every carrier on ATL to PIT combined arrived on time 83.2% of the time across 2,737 flights, so DL 1363 is 8 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 83.6% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1363thin sample | 341 | 91.0% | 50 min | 1.47% | A |
| All Delta Air Lines on ATL–PIT | 2,452 | 83.6% | 56 min | 1.92% | B |
| All carriers on ATL–PIT | 2,737 | 83.2% | 56 min | 1.75% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1363 quarter by quarter
DL 1363 did not run the same all year. Its best quarter was Apr–Jun 2026 at 96.7% on time and its weakest Jul–Sep 2025 at 83.3%, a swing of 13 points on roughly 68 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 flights83.3%
- Oct–Dec 202592 flights86.8%
- Jan–Mar 202666 flights88.9%
- Apr–Jun 202691 flights96.7%
- Jul–Sep 202662 flights95.1%
Scale runs 75% to 100%.
By weekday, DL 1363 did best on Wednesday at 100.0% on time and worst on Saturday at 84.8%. Each day rests on about 49 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 1363 runs when it is late
The 30 late arrivals split 14 under half an hour, 8 between 30 and 60 minutes, and 8 an hour or more.
- 15+ min early53 flights15.8%
- Within 15 min252 flights75.2%
- 15–29 min late14 flights4.2%
- 30–59 min late8 flights2.4%
- 1–2 hours late6 flights1.8%
- 2+ hours late2 flights0.6%
Scale runs 0% to 100%.
Share of 335 completed flights by arrival against schedule.
5 of 31 late departures made up the time and arrived on time, 16% of them. Only 4 left on time and still arrived late.
The worst days
Worst days for DL 1363
The latest arrival of the period was on 24 January 2026, 3 hours 34 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in January 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 24 January 2026 | 3 hours 34 minutes | Late-arriving aircraft |
| 19 June 2026 | 2 hours 6 minutes | Carrier |
| 18 July 2026 | 1 hour 53 minutes | Carrier |
| 10 January 2026 | 1 hour 33 minutes | Extreme weather |
| 5 January 2026 | 1 hour 27 minutes | National Airspace System |
Delay causes
Why DL 1363 runs late
Carrier accounts for 54% of the 1,498 delay minutes carriers reported here, and the remaining four split what is left.
- 54%Carrier
- 23%Late-arriving aircraft
- 19%National Airspace System
- 3%Extreme weather
The largest share of delay minutes, 54%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 816 of the 1,498 delay minutes reported here. The split is drawn from 1,498 delay minutes reported on DL 1363.
Cancellations sit at 1.47% against a national 1.89%, which is ordinary. Diversions add another 0.29%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 2.4% 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.
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.
DL 1363 is not only a ATL to PIT flight. It also flew PIT to ATL (333 flights, 92.7% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.
One caution: this is a thin sample. 341 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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| PIT to ATLthin sample | 333 | 92.7% | 60 min | 1.50% | A |
What to do with this
Booking DL 1363
For a booking, DL 1363 has one of the better records a US domestic flight can show: 91.0% on time and 1.47% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- ATL to PIT, every carrier and departure
- PIT to ATL, the return direction
- Delta Air Lines 1353 on the same route85.4%
- Delta Air Lines 1380 on the same route92.2%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Pittsburgh International (PIT) 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.