Flight number record

DL 3018

Delta Air Lines · Greensboro to Atlanta

Route: GSO → ATL
Departs: 05:30
Flights: 354
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 3018, check with Delta Air Lines.

DL 3018 earns an A. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 18 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 354 flights, with a median arrival 18 minutes early.

Set against the rest of the country, DL 3018's record is 18 points better than the US average of 77.6%. That gap is worth roughly 181 fewer late arrivals for every thousand flights.

On time

95.7%

Arrivals under 15 minutes late, of 346 completed flights

Avg delay

116 min

Across delayed arrivals only, not all flights

Cancelled

2.26%

National rate is 1.81%

1 hour+ late

2.6%

National rate is 8.1%

These figures cover 354 flights between July 2025 and June 2026. The median arrival is 18 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 3018 flies

DL 3018 flies GSO to ATL without a single fixed slot. Its most common scheduled departure was 05:30, used on 71 of 354 flights, with 05:19 (60 flights) and 06:00 (50 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 05:3071 flights20.1%
Departs 05:1960 flights16.9%
Departs 06:0050 flights14.1%

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 05:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 3018 runs 6 points better at 95.7%. 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 3018 next to GSO to ATL

Every carrier on GSO to ATL combined arrived on time 89.6% of the time across 2,755 flights, so DL 3018 is 6 points ahead of it. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 14 points.

DL 3018 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 3018thin sample	354	95.7%	116 min	2.26%	A
All Delta Air Lines on GSO–ATL	2,755	89.6%	96 min	2.14%	A
All carriers on GSO–ATL	2,755	89.6%	96 min	2.14%	A
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 3018 quarter by quarter

DL 3018 did not run the same all year. Its best quarter was Apr–Jun 2026 at 100.0% on time and its weakest Jan–Mar 2026 at 87.8%, a swing of 12 points on roughly 89 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 202590 flights97.7%
Jan–Mar 202685 flights87.8%
Apr–Jun 202687 flights100.0%

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

By weekday, DL 3018 ranged from 91.8% on Tuesday to 98.0% on Wednesday. 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 3018 runs late

One category carries most of the weight here. Carrier accounts for 65% of the 1,737 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
65%
National Airspace System
20%
Extreme weather
15%

Extreme weather accounts for 15% 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 2.4 times the usual weather exposure. The split is drawn from 1,737 delay minutes reported on DL 3018.

Cancellations sit at 2.26% 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 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.

Every one of the 354 flights under DL 3018 in the data flew GSO 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. 354 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 3018

For a booking, read DL 3018 as 95.7% on time with 2.26% cancelled over 354 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