Flight number record

DL 2948

Delta Air Lines · Atlanta to Green Bay

Route: ATL → GRB
Departs: 22:15
Flights: 364
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2948, check with Delta Air Lines.

DL 2948 lands a B, 3 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about 45 minutes on average. That is a workable record, not a spotless one. That rests on 364 flights, with a median arrival 4 minutes early.

On time

80.7%

Arrivals under 15 minutes late, of 352 completed flights

Avg delay

46 min

Across delayed arrivals only, not all flights

Cancelled

1.92%

National rate is 1.81%

1 hour+ late

5.1%

National rate is 8.1%

These figures cover 364 flights between July 2025 and June 2026. The median arrival is 4 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 2948 flies

DL 2948 flies ATL to GRB without a single fixed slot. Its most common scheduled departure was 22:15, used on 66 of 364 flights, with 21:40 (46 flights) and 21:20 (38 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 22:1566 flights18.1%
Departs 21:4046 flights12.6%
Departs 21:2038 flights10.4%

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 22:15 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and DL 2948 runs 10 points better at 80.7%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

DL 2948 next to ATL to GRB

Every carrier on ATL to GRB combined arrived on time 80.8% of the time across 366 flights, so DL 2948 is about level with it. Across its whole network Delta Air Lines managed 81.6%, close to this flight's figure.

DL 2948 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2948thin sample	364	80.7%	46 min	1.92%	B
All Delta Air Lines on ATL–GRB	366	80.8%	46 min	1.91%	B
All carriers on ATL–GRB	366	80.8%	46 min	1.91%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2948 quarter by quarter

DL 2948 did not run the same all year. Its best quarter was Jul–Sep 2025 at 87.0% on time and its weakest Apr–Jun 2026 at 77.0%, a swing of 10 points on roughly 91 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 flights87.0%
Oct–Dec 202591 flights80.0%
Jan–Mar 202690 flights78.3%
Apr–Jun 202691 flights77.0%

Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2948 did best on Tuesday at 92.5% on time and worst on Sunday at 65.3%. Each day rests on about 52 flights, so a gap of 27 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2948 runs late

One category carries most of the weight here. Carrier accounts for 46% of the 3,117 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
46%
National Airspace System
23%
Late-arriving aircraft
22%
Extreme weather
9%

The largest share of delay minutes, 46%, 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 1,430 of the 3,117 delay minutes reported here. The split is drawn from 3,117 delay minutes reported on DL 2948.

Cancellations sit at 1.92% against a national 1.81%, which is ordinary. Diversions add another 1.37%.

Connections and routes

What a delay on this flight costs

5.1% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about 45 minutes, which a normal layover absorbs.

The 774 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 364 flights under DL 2948 in the data flew ATL to GRB. 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. 364 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 2948

For a booking, read DL 2948 as 80.7% on time with 1.92% cancelled over 364 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