Flight number record

DL 3018

Delta Air Lines · Greensboro to Atlanta

Route: GSO → ATL
Departs: 05:30
Flights: 350
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 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 19 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 350 flights, with a median arrival 18 minutes early.

Set against the rest of the country, DL 3018's record is 19 points better than the US average of 77.3%. That gap is worth roughly 186 fewer late arrivals for every thousand flights.

On time

95.9%

Arrivals under 15 minutes late, of 342 completed flights

Avg delay

96 min

Across delayed arrivals only, not all flights

Cancelled

2.29%

National rate is 1.89%

1 hour+ late

1.8%

National rate is 8.3%

These figures cover 350 flights between September 2025 and August 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.

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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 60 of 350 flights, with 05:19 (60 flights) and 06:00 (56 flights) next.

Departs 05:3060 flights17.1%
Departs 05:1960 flights17.1%
Departs 06:0056 flights16.0%

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 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 7 points better at 95.9%. 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 3018 next to GSO to ATL

Every carrier on GSO to ATL combined arrived on time 89.2% of the time across 2,730 flights, so DL 3018 is 7 points ahead of it. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 15 points.

DL 3018 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 3018thin sample	350	95.9%	96 min	2.29%	A
All Delta Air Lines on GSO–ATL	2,730	89.2%	100 min	2.09%	A
All carriers on GSO–ATL	2,730	89.2%	100 min	2.09%	A
Delta Air Lines, whole network	1,039,517	81.1%	71 min	1.74%	B

Across the year

DL 3018 quarter by quarter

DL 3018 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Jan–Mar 2026 at 87.8%, a swing of 12 points on roughly 70 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 flights100.0%
Oct–Dec 202590 flights97.7%
Jan–Mar 202685 flights87.8%
Apr–Jun 202687 flights100.0%
Jul–Sep 202658 flights96.6%

Scale runs 80% to 100%.

By weekday, DL 3018 ranged from 89.6% on Tuesday to 100.0% on Friday. With about 50 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 3018 runs when it is late

DL 3018 often beats the schedule: 221 of 342 completed flights, 65%, arrived 15 minutes or more early. The 14 late arrivals split 5 under half an hour, 3 between 30 and 60 minutes, and 6 an hour or more.

15+ min early221 flights64.6%
Within 15 min107 flights31.3%
15–29 min late5 flights1.5%
30–59 min late3 flights0.9%
1–2 hours late2 flights0.6%
2+ hours late4 flights1.2%

Scale runs 0% to 100%.

Share of 342 completed flights by arrival against schedule.

Only 17 of 342 completed flights left 15 minutes late or more, too few to say how often the time is made up.

The worst days

Worst days for DL 3018

The latest arrival of the period was on 17 March 2026, 5 hours 44 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.

The latest arrivals of DL 3018 in the period
Date	Arrived late by	Largest filed cause
17 March 2026	5 hours 44 minutes	Carrier
16 March 2026	4 hours 18 minutes	National Airspace System
12 October 2025	3 hours 39 minutes	Carrier
1 February 2026	2 hours 1 minute	Carrier
5 February 2026	1 hour 25 minutes	Carrier

Delay causes

Why DL 3018 runs late

Carrier accounts for 75% of the 1,347 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
75%
National Airspace System
25%

The largest share of delay minutes, 75%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,007 of the 1,347 delay minutes reported here. The split is drawn from 1,347 delay minutes reported on DL 3018.

Cancellations sit at 2.29% against a national 1.89%, 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 1.8% 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.

Every one of the 350 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. 350 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 95.9% on time with 2.29% cancelled over 350 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures