Flight number record
DL 1267
Delta Air Lines · Atlanta to Baltimore
- Route
- ATL → BWI
- Departs
- 15:31
- Flights
- 321
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1267, check with Delta Air Lines.
DL 1267 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 321 flights, with a median arrival 2 minutes late.
The national on-time rate over the same period is 77.6%, so DL 1267 runs 9 points behind the country as a whole. Across a thousand flights that is about 90 extra late arrivals.
Key figures
On time
68.6%
Arrivals under 15 minutes late, of 318 completed flights
Avg delay
57 min
Across delayed arrivals only, not all flights
Cancelled
0.93%
National rate is 1.81%
1 hour+ late
10.1%
National rate is 8.1%
These figures cover 321 flights between July 2025 and June 2026. Beyond the headline rate, 10.1% 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 1267 flies
DL 1267 flies ATL to BWI without a single fixed slot. Its most common scheduled departure was 15:31, used on 65 of 321 flights, with 15:30 (37 flights) and 13:58 (35 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 15:3165 flights20.2%
- Departs 15:3037 flights11.5%
- Departs 13:5835 flights10.9%
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 15:31 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 1267 runs 4 points worse at 68.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
DL 1267 next to ATL to BWI
Every carrier on ATL to BWI combined arrived on time 75.6% of the time across 5,414 flights, so DL 1267 is 7 points behind it. Delta flew 2,824 flights on the same city pair under all its flight numbers, including this one, and those ran 78.3% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1267thin sample | 321 | 68.6% | 57 min | 0.93% | C+ |
| All Delta Air Lines on ATL–BWI | 2,824 | 78.3% | 59 min | 1.95% | B |
| All carriers on ATL–BWI | 5,414 | 75.6% | 63 min | 1.98% | B |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 1267 quarter by quarter
DL 1267 did not run the same all year. Its best quarter was Jan–Mar 2026 at 73.8% on time and its weakest Jul–Sep 2025 at 58.5%, a swing of 15 points on roughly 80 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 202584 flights58.5%
- Oct–Dec 202592 flights69.6%
- Jan–Mar 202666 flights73.8%
- Apr–Jun 202679 flights73.4%
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, DL 1267 ranged from 63.8% on Monday to 73.9% on Wednesday. With about 46 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 1267 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 5,741 reported delay minutes.
- 39%Carrier
- 30%National Airspace System
- 22%Late-arriving aircraft
- 8%Extreme weather
The largest share of delay minutes, 39%, 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 2,257 of the 5,741 delay minutes reported here. The split is drawn from 5,741 delay minutes reported on DL 1267.
Cancellations sit at 0.93% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
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. 10.1% 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 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. 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.
The same number turns up on one other city pair in the data, including BWI to ATL (245), but none flew often enough under DL 1267 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ATL to BWI only.
One caution: this is a thin sample. 321 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 1267
For a booking, DL 1267 is one of the weaker ways to fly ATL to BWI: 7 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.
Related
Where to go next
- ATL to BWI, every carrier and departure
- BWI to ATL, the return direction
- Delta Air Lines 2590 on the same route77.1%
- Delta Air Lines 2928 on the same route71.5%
- Delta Air Lines 2711 on the same route87.2%
- Delta Air Lines 801 on the same route90.5%
- Delta Air Lines 1257 on the same route71.1%
- Delta Air Lines 2799 on the same route79.1%
- 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
- 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.