Flight number record

DL 1383

Delta Air Lines · Pittsburgh to Atlanta

Route: PIT → ATL
Departs: 07:05
Flights: 355
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 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 17 points better than the national rate of 77.6%. 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 17 points better than the US average of 77.6%. That gap is worth roughly 165 fewer late arrivals for every thousand flights.

On time

94.1%

Arrivals under 15 minutes late, of 341 completed flights

Avg delay

93 min

Across delayed arrivals only, not all flights

Cancelled

3.10%

National rate is 1.81%

1 hour+ late

2.6%

National rate is 8.1%

These figures cover 355 flights between July 2025 and June 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.

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 156 of 355 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:05156 flights43.9%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

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 5 points better at 94.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

DL 1383 next to PIT to ATL

Every carrier on PIT to ATL combined arrived on time 90.3% of the time across 2,777 flights, so DL 1383 is 4 points ahead of it. Delta flew 2,475 flights on the same city pair under all its flight numbers, including this one, and those ran 90.7% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 13 points.

DL 1383 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 1383thin sample	355	94.1%	93 min	3.10%	A−
All Delta Air Lines on PIT–ATL	2,475	90.7%	71 min	2.34%	A
All carriers on PIT–ATL	2,777	90.3%	66 min	2.12%	A
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 1383 quarter by quarter

Quarter by quarter DL 1383 held fairly steady: 97.8% in Jul–Sep 2025, 89.7% in Oct–Dec 2025, 90.6% in Jan–Mar 2026 and 97.7% in Apr–Jun 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 202592 flights97.8%
Oct–Dec 202582 flights89.7%
Jan–Mar 202690 flights90.6%
Apr–Jun 202691 flights97.7%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 1383 ranged from 91.7% on Sunday to 98.0% on Friday. With about 51 flights behind each day, a spread of 6 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 1383 runs late

One category carries most of the weight here. Carrier accounts for 54% of the 1,868 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
54%
Extreme weather
21%
National Airspace System
13%
Late-arriving aircraft
12%

Extreme weather accounts for 21% 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 3.4 times the usual weather exposure. The split is drawn from 1,868 delay minutes reported on DL 1383.

Cancellations run at 3.10%, against 1.81% 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

Badly late arrivals are rare here: only 2.6% land an hour or more behind schedule, against 8.1% 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

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: 3.10% 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.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures