Flight number record
DL 2480
Delta Air Lines · Baltimore to Detroit
- Route
- BWI → DTW
- Departs
- 17:36
- Flights
- 359
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2480, check with Delta Air Lines.
DL 2480 lands a B, about a point better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That rests on 359 flights, with a median arrival 11 minutes early.
Key figures
On time
78.6%
Arrivals under 15 minutes late, of 351 completed flights
Avg delay
107 min
Across delayed arrivals only, not all flights
Cancelled
2.23%
National rate is 1.89%
1 hour+ late
11.1%
National rate is 8.3%
These figures cover 359 flights between September 2025 and August 2026. Beyond the headline rate, 11.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 2480 flies
DL 2480 flies BWI to DTW without a single fixed slot. Its most common scheduled departure was 17:36, used on 61 of 359 flights, with 17:25 (60 flights) next.
- Departs 17:3661 flights17.0%
- Departs 17:2560 flights16.7%
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 17:36 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and DL 2480 runs 11 points better at 78.6%. 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 2480 next to BWI to DTW
Every carrier on BWI to DTW combined arrived on time 80.8% of the time across 2,233 flights, so DL 2480 is 2 points behind it. Delta flew 1,224 flights on the same city pair under all its flight numbers, including this one, and those ran 85.7% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2480thin sample | 359 | 78.6% | 107 min | 2.23% | B |
| All Delta Air Lines on BWI–DTW | 1,224 | 85.7% | 101 min | 1.80% | A |
| All carriers on BWI–DTW | 2,233 | 80.8% | 76 min | 2.06% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2480 quarter by quarter
DL 2480 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.0% on time and its weakest Jul–Sep 2026 at 67.8%, a swing of 22 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 202530 flights90.0%
- Oct–Dec 202587 flights84.9%
- Jan–Mar 202689 flights73.6%
- Apr–Jun 202691 flights80.9%
- Jul–Sep 202662 flights67.8%
Scale runs 60% to 95%.
By weekday, DL 2480 did best on Thursday at 85.4% on time and worst on Sunday at 69.4%. Each day rests on about 51 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2480 runs when it is late
DL 2480 often beats the schedule: 148 of 351 completed flights, 42%, arrived 15 minutes or more early. When DL 2480 is late it tends to be very late: 39 of its 75 late arrivals were an hour or more behind, and 21 were two hours or more.
- 15+ min early148 flights42.2%
- Within 15 min128 flights36.5%
- 15–29 min late17 flights4.8%
- 30–59 min late19 flights5.4%
- 1–2 hours late18 flights5.1%
- 2+ hours late21 flights6.0%
Scale runs 0% to 100%.
Share of 351 completed flights by arrival against schedule.
21 of 84 late departures made up the time and arrived on time, 25% of them. 12 flights left on time and still arrived late.
The worst days
Worst days for DL 2480
The latest arrival of the period was on 8 March 2026, 19 hours 6 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in July 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 8 March 2026 | 19 hours 6 minutes | Carrier |
| 5 July 2026 | 6 hours 54 minutes | Carrier |
| 20 May 2026 | 5 hours 51 minutes | Late-arriving aircraft |
| 9 July 2026 | 5 hours 8 minutes | Late-arriving aircraft |
| 18 July 2026 | 4 hours 50 minutes | Late-arriving aircraft |
Delay causes
Why DL 2480 runs late
Late-arriving aircraft accounts for 47% of the 8,039 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Late-arriving aircraft
- 27%Carrier
- 26%National Airspace System
47% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,039 reported delay minutes here, that single category outweighs weather by 47 to one. The split is drawn from 8,039 delay minutes reported on DL 2480.
Cancellations sit at 2.23% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
11.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
DL 2480 is not only a BWI to DTW flight. It also flew DTW to BWI (357 flights, 80.0% 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. 359 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 |
|---|---|---|---|---|---|
| DTW to BWIthin sample | 357 | 80.0% | 71 min | 1.68% | B |
What to do with this
Booking DL 2480
For a booking, read DL 2480 as 78.6% on time with 2.23% cancelled over 359 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- BWI to DTW, every carrier and departure
- DTW to BWI, the return direction
- Delta Air Lines 2601 on the same route93.3%
- Delta Air Lines 1546 on the same route87.8%
- Baltimore/Washington International Thurgood Marshall (BWI) delay statistics
- Detroit Metropolitan Wayne County (DTW) 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.