Flight number record
DL 801
Delta Air Lines · Atlanta to Baltimore
- Route
- ATL → BWI
- Departs
- 08:55
- Flights
- 331
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 801, check with Delta Air Lines.
DL 801 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 13 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 331 flights, with a median arrival 6 minutes early.
Set against the rest of the country, DL 801's record is 13 points better than the US average of 77.3%. That gap is worth roughly 129 fewer late arrivals for every thousand flights.
Key figures
On time
90.2%
Arrivals under 15 minutes late, of 326 completed flights
Avg delay
58 min
Across delayed arrivals only, not all flights
Cancelled
1.51%
National rate is 1.89%
1 hour+ late
3.7%
National rate is 8.3%
These figures cover 331 flights between September 2025 and August 2026. The median arrival is 6 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 801 flies
DL 801 flies ATL to BWI without a single fixed slot. Its most common scheduled departure was 08:55, used on 75 of 331 flights, with 09:25 (49 flights) next.
- Departs 08:5575 flights22.7%
- Departs 09:2549 flights14.8%
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 08:55 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and DL 801 runs 6 points better at 90.2%. 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 801 next to ATL to BWI
Every carrier on ATL to BWI combined arrived on time 75.2% of the time across 5,402 flights, so DL 801 is 15 points ahead of it. Delta flew 2,790 flights on the same city pair under all its flight numbers, including this one, and those ran 78.7% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 801thin sample | 331 | 90.2% | 58 min | 1.51% | A |
| All Delta Air Lines on ATL–BWI | 2,790 | 78.7% | 57 min | 2.04% | B |
| All carriers on ATL–BWI | 5,402 | 75.2% | 63 min | 2.26% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 801 quarter by quarter
DL 801 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Oct–Dec 2025 at 84.2%, a swing of 16 points on roughly 66 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 202579 flights84.2%
- Jan–Mar 202669 flights85.1%
- Apr–Jun 202691 flights95.6%
- Jul–Sep 202662 flights90.3%
Scale runs 75% to 100%.
By weekday, DL 801 did best on Wednesday at 97.8% on time and worst on Sunday at 82.2%. Each day rests on about 47 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 801 runs when it is late
The 32 late arrivals split 15 under half an hour, 5 between 30 and 60 minutes, and 12 an hour or more.
- 15+ min early50 flights15.3%
- Within 15 min244 flights74.8%
- 15–29 min late15 flights4.6%
- 30–59 min late5 flights1.5%
- 1–2 hours late11 flights3.4%
- 2+ hours late1 flights0.3%
Scale runs 0% to 100%.
Share of 326 completed flights by arrival against schedule.
9 of 35 late departures made up the time and arrived on time, 26% of them. Only 6 left on time and still arrived late.
The worst days
Worst days for DL 801
The latest arrival of the period was on 7 March 2026, 3 hours 32 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 March 2026 | 3 hours 32 minutes | Carrier |
| 18 January 2026 | 1 hour 56 minutes | Late-arriving aircraft |
| 5 January 2026 | 1 hour 53 minutes | Carrier |
| 9 November 2025 | 1 hour 48 minutes | Carrier |
| 9 December 2025 | 1 hour 48 minutes | Late-arriving aircraft |
Delay causes
Why DL 801 runs late
Carrier accounts for 53% of the 1,847 delay minutes carriers reported here, and the remaining four split what is left.
- 53%Carrier
- 29%Late-arriving aircraft
- 18%National Airspace System
The largest share of delay minutes, 53%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 987 of the 1,847 delay minutes reported here. The split is drawn from 1,847 delay minutes reported on DL 801.
Cancellations sit at 1.51% 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 3.7% 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.
The 577 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.
DL 801 is not only a ATL to BWI flight. It also flew BWI to ATL (314 flights, 86.5% 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. 331 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 |
|---|---|---|---|---|---|
| BWI to ATLthin sample | 314 | 86.5% | 70 min | 1.27% | A |
What to do with this
Booking DL 801
For a booking, read DL 801 as 90.2% on time with 1.51% cancelled over 331 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ATL to BWI, every carrier and departure
- BWI to ATL, the return direction
- Delta Air Lines 2928 on the same route69.9%
- Delta Air Lines 2711 on the same route89.3%
- Delta Air Lines 2590 on the same route79.0%
- Delta Air Lines 1267 on the same route69.6%
- Delta Air Lines 2799 on the same route78.6%
- Delta Air Lines 1257 on the same route68.5%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Baltimore/Washington International Thurgood Marshall (BWI) 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
- Worst months to fly in the US, ranked by the data
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.