Flight number record

DL 1625

Delta Air Lines · Memphis to Atlanta

Route: MEM → ATL
Departs: 07:30
Flights: 304
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1625, check with Delta Air Lines.

DL 1625 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 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 304 flights, with a median arrival 16 minutes early.

Set against the rest of the country, DL 1625's record is 14 points better than the US average of 77.6%. That gap is worth roughly 144 fewer late arrivals for every thousand flights.

On time

92.0%

Arrivals under 15 minutes late, of 299 completed flights

Avg delay

112 min

Across delayed arrivals only, not all flights

Cancelled

1.64%

National rate is 1.81%

1 hour+ late

4.0%

National rate is 8.1%

These figures cover 304 flights between July 2025 and June 2026. The median arrival is 16 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 1625 flies

DL 1625 flies MEM to ATL without a single fixed slot. Its most common scheduled departure was 07:30, used on 112 of 304 flights, with 08:05 (73 flights) and 08:06 (36 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:30112 flights36.8%
Departs 08:0573 flights24.0%
Departs 08:0636 flights11.8%

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 07:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 1625 runs 3 points better at 92.0%. 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 1625 next to MEM to ATL

Every carrier on MEM to ATL combined arrived on time 87.4% of the time across 3,389 flights, so DL 1625 is 5 points ahead of it. Delta flew 3,306 flights on the same city pair under all its flight numbers, including this one, and those ran 87.9% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 10 points.

DL 1625 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 1625thin sample	304	92.0%	112 min	1.64%	A
All Delta Air Lines on MEM–ATL	3,306	87.9%	90 min	1.94%	A
All carriers on MEM–ATL	3,389	87.4%	89 min	2.01%	A
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 1625 quarter by quarter

DL 1625 did not run the same all year. Its best quarter was Jul–Sep 2025 at 96.7% on time and its weakest Jan–Mar 2026 at 82.9%, a swing of 14 points on roughly 76 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 202592 flights96.7%
Oct–Dec 202579 flights93.5%
Jan–Mar 202642 flights82.9%
Apr–Jun 202691 flights90.0%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 1625 ranged from 85.7% on Saturday to 97.6% on Thursday. With about 43 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 1625 runs late

One category carries most of the weight here. Carrier accounts for 84% of the 2,676 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
84%
National Airspace System
9%
Extreme weather
7%

The largest share of delay minutes, 84%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 2,245 of the 2,676 delay minutes reported here. The split is drawn from 2,676 delay minutes reported on DL 1625.

Cancellations sit at 1.64% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.0% 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 same number turns up on three other city pairs in the data, including BNA to ATL (13), BZN to LGA (4) and LGA to BZN (4), but none flew often enough under DL 1625 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to MEM to ATL only.

One caution: this is a thin sample. 304 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 1625

For a booking, read DL 1625 as 92.0% on time with 1.64% cancelled over 304 flights. Those are rates from the past twelve months, not a forecast for any particular day.

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