Flight number record

DL 3088

Delta Air Lines · Dayton to Atlanta

Route: DAY → ATL
Departs: 18:34
Flights: 280
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 3088, check with Delta Air Lines.

DL 3088 earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 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 280 flights, with a median arrival 26 minutes early.

Set against the rest of the country, DL 3088's record is 8 points better than the US average of 77.6%. That gap is worth roughly 84 fewer late arrivals for every thousand flights.

On time

86.0%

Arrivals under 15 minutes late, of 271 completed flights

Avg delay

104 min

Across delayed arrivals only, not all flights

Cancelled

2.86%

National rate is 1.81%

1 hour+ late

7.0%

National rate is 8.1%

These figures cover 280 flights between July 2025 and June 2026. The median arrival is 26 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 3088 flies

DL 3088 flies DAY to ATL without a single fixed slot. Its most common scheduled departure was 18:34, used on 70 of 280 flights, with 18:44 (61 flights) and 18:37 (34 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 18:3470 flights25.0%
Departs 18:4461 flights21.8%
Departs 18:3734 flights12.1%

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 18:34 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and DL 3088 runs 18 points better at 86.0%. 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 3088 next to DAY to ATL

Every carrier on DAY to ATL combined arrived on time 89.7% of the time across 1,400 flights, so DL 3088 is 4 points behind it. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 4 points.

DL 3088 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 3088thin sample	280	86.0%	104 min	2.86%	A
All Delta Air Lines on DAY–ATL	1,400	89.7%	101 min	1.71%	A
All carriers on DAY–ATL	1,400	89.7%	101 min	1.71%	A
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 3088 quarter by quarter

DL 3088 did not run the same all year. Its best quarter was Jan–Mar 2026 at 93.6% on time and its weakest Apr–Jun 2026 at 79.2%, a swing of 14 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 202561 flights81.7%
Oct–Dec 202558 flights89.3%
Jan–Mar 202682 flights93.6%
Apr–Jun 202679 flights79.2%

Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 3088 ranged from 80.5% on Sunday to 90.7% on Wednesday. With about 40 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.

Delay causes

Why DL 3088 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 45% of the 3,949 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.

Late-arriving aircraft
45%
Extreme weather
28%
Carrier
22%
National Airspace System
5%

Extreme weather accounts for 28% 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 4.4 times the usual weather exposure. The split is drawn from 3,949 delay minutes reported on DL 3088.

Cancellations run at 2.86%, against 1.81% nationally. That is roughly 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

7.0% 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 close to two hours, which a normal layover absorbs.

DL 3088 is not only a DAY to ATL flight. It also flew ATL to DAY (280 flights, 79.4% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.

One caution: this is a thin sample. 280 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.

Other routes flown as DL 3088
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
ATL to DAYthin sample	280	79.4%	62 min	2.86%	B

What to do with this

Booking DL 3088

For a booking, the cancellation rate is the figure to plan around on DL 3088: 2.86% of its 280 scheduled flights did not operate. A late arrival costs close to two hours, 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