Flight number record
DL 3088
Delta Air Lines · Dayton to Atlanta
- Route
- DAY → ATL
- Departs
- 18:34
- Flights
- 286
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 3088, check with Delta Air Lines.
DL 3088 lands a B−, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 286 flights, with a median arrival 25 minutes early.
Set against the rest of the country, DL 3088's record is 6 points better than the US average of 77.3%. That gap is worth roughly 60 fewer late arrivals for every thousand flights.
Key figures
On time
83.3%
Arrivals under 15 minutes late, of 276 completed flights
Avg delay
93 min
Across delayed arrivals only, not all flights
Cancelled
3.15%
National rate is 1.89%
1 hour+ late
7.2%
National rate is 8.3%
These figures cover 286 flights between September 2025 and August 2026. The median arrival is 25 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 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 286 flights, with 18:44 (61 flights) and 18:47 (32 flights) next.
- Departs 18:3470 flights24.5%
- Departs 18:4461 flights21.3%
- Departs 18:4732 flights11.2%
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 18:34 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and DL 3088 runs 15 points better at 83.3%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
DL 3088 next to DAY to ATL
Every carrier on DAY to ATL combined arrived on time 89.4% of the time across 1,408 flights, so DL 3088 is 6 points behind it. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 3088thin sample | 286 | 83.3% | 93 min | 3.15% | B− |
| All Delta Air Lines on DAY–ATL | 1,408 | 89.4% | 96 min | 1.92% | A |
| All carriers on DAY–ATL | 1,408 | 89.4% | 96 min | 1.92% | A |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | 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 Jul–Sep 2026 at 61.7%, a swing of 32 points on roughly 72 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 202518 flights—
- Oct–Dec 202558 flights89.3%
- Jan–Mar 202682 flights93.6%
- Apr–Jun 202679 flights79.2%
- Jul–Sep 202649 flights61.7%
Scale runs 55% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, DL 3088 did best on Wednesday at 88.9% on time and worst on Sunday at 76.2%. Each day rests on about 41 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 3088 runs when it is late
DL 3088 often beats the schedule: 183 of 276 completed flights, 66%, arrived 15 minutes or more early. The 46 late arrivals split 15 under half an hour, 11 between 30 and 60 minutes, and 20 an hour or more.
- 15+ min early183 flights66.3%
- Within 15 min47 flights17.0%
- 15–29 min late15 flights5.4%
- 30–59 min late11 flights4.0%
- 1–2 hours late11 flights4.0%
- 2+ hours late9 flights3.3%
Scale runs 0% to 100%.
Share of 276 completed flights by arrival against schedule.
18 of 62 late departures made up the time and arrived on time, 29% of them. Only 2 left on time and still arrived late.
The worst days
Worst days for DL 3088
The latest arrival of the period was on 22 May 2026, 16 hours 59 minutes behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 22 May 2026 | 16 hours 59 minutes | Extreme weather |
| 11 November 2025 | 4 hours 49 minutes | Carrier |
| 11 January 2026 | 4 hours 1 minute | Late-arriving aircraft |
| 11 April 2026 | 3 hours 59 minutes | Carrier |
| 2 October 2025 | 2 hours 39 minutes | Carrier |
Delay causes
Why DL 3088 runs late
Late-arriving aircraft accounts for 44% of the 4,261 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Late-arriving aircraft
- 26%Extreme weather
- 20%Carrier
- 9%National Airspace System
Extreme weather accounts for 26% 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 4.3 times the usual weather exposure. The split is drawn from 4,261 delay minutes reported on DL 3088.
Cancellations run at 3.15%, against 1.89% nationally. That is about 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
7.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
DL 3088 is not only a DAY to ATL flight. It also flew ATL to DAY (286 flights, 77.9% 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. 286 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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| ATL to DAYthin sample | 286 | 77.9% | 59 min | 3.15% | B− |
What to do with this
Booking DL 3088
For a booking, the cancellation rate is the figure to plan around on DL 3088: 3.15% of its 286 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- DAY to ATL, every carrier and departure
- ATL to DAY, the return direction
- Delta Air Lines 3140 on the same route91.8%
- Delta Air Lines 3108 on the same route92.6%
- Delta Air Lines 2763 on the same route88.3%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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 ; recomputed monthly. How this data is collected.