Flight number record
DL 360
Delta Air Lines · Atlanta to Washington
- Route
- ATL → DCA
- Departs
- 13:09
- Flights
- 365
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 360, check with Delta Air Lines.
DL 360 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.6%. The late ones land roughly 50 minutes behind schedule. That rests on 365 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.6%, so DL 360 runs 7 points behind the country as a whole. Across a thousand flights that is about 68 extra late arrivals.
Key figures
On time
70.8%
Arrivals under 15 minutes late, of 356 completed flights
Avg delay
51 min
Across delayed arrivals only, not all flights
Cancelled
1.64%
National rate is 1.81%
1 hour+ late
9.0%
National rate is 8.1%
These figures cover 365 flights between July 2025 and June 2026. Beyond the headline rate, 9.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When DL 360 flies
DL 360 flies ATL to DCA without a single fixed slot. Its most common scheduled departure was 13:09, used on 59 of 365 flights, with 13:13 (58 flights) and 13:20 (46 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 13:0959 flights16.2%
- Departs 13:1358 flights15.9%
- Departs 13:2046 flights12.6%
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 13:09 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and DL 360 runs 8 points worse at 70.8%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
DL 360 next to ATL to DCA
Every carrier on ATL to DCA combined arrived on time 70.1% of the time across 6,812 flights, so DL 360 is about level with it. Delta flew 3,838 flights on the same city pair under all its flight numbers, including this one, and those ran 67.3% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 360 | 365 | 70.8% | 51 min | 1.64% | C |
| All Delta Air Lines on ATL–DCA | 3,838 | 67.3% | 60 min | 2.58% | C |
| All carriers on ATL–DCA | 6,812 | 70.1% | 70 min | 3.32% | C− |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 360 quarter by quarter
DL 360 did not run the same all year. Its best quarter was Jul–Sep 2025 at 77.0% on time and its weakest Oct–Dec 2025 at 66.3%, a swing of 11 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 flights77.0%
- Oct–Dec 202592 flights66.3%
- Jan–Mar 202690 flights66.7%
- Apr–Jun 202691 flights73.3%
Scale runs 60% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, DL 360 did best on Saturday at 80.4% on time and worst on Thursday at 60.8%. Each day rests on about 52 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Delay causes
Why DL 360 runs late
One category carries most of the weight here. National Airspace System accounts for 48% of the 5,350 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.
- 48%National Airspace System
- 41%Carrier
- 10%Late-arriving aircraft
- 0%Extreme weather
The largest share of delay minutes, 41%, 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 2,219 of the 5,350 delay minutes reported here. The split is drawn from 5,350 delay minutes reported on DL 360.
Cancellations sit at 1.64% against a national 1.81%, which is ordinary. Diversions add another 0.82%.
Connections and routes
What a delay on this flight costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 547 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.
DL 360 is not only a ATL to DCA flight. It also flew DCA to ATL (337 flights, 72.9% 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. 365 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 |
|---|---|---|---|---|---|
| DCA to ATLthin sample | 337 | 72.9% | 92 min | 1.78% | C |
What to do with this
Booking DL 360
For a booking, read DL 360 as 70.8% on time with 1.64% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ATL to DCA, every carrier and departure
- DCA to ATL, the return direction
- Delta Air Lines 737 on the same route81.1%
- Delta Air Lines 380 on the same route79.7%
- Delta Air Lines 537 on the same route68.9%
- Delta Air Lines 926 on the same route83.3%
- Delta Air Lines 325 on the same route58.3%
- Delta Air Lines 950 on the same route62.5%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Ronald Reagan Washington National (DCA) 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
- How often a connection fails at the major US hubs
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.