Flight number record

DL 2480

Delta Air Lines · Baltimore to Detroit

Route: BWI → DTW
Departs: 17:26
Flights: 359
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2480, check with Delta Air Lines.

DL 2480 lands a B, 2 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That is a workable record, not a spotless one. That rests on 359 flights, with a median arrival 13 minutes early.

On time

79.9%

Arrivals under 15 minutes late, of 353 completed flights

Avg delay

112 min

Across delayed arrivals only, not all flights

Cancelled

1.67%

National rate is 1.81%

1 hour+ late

11.3%

National rate is 8.1%

These figures cover 359 flights between July 2025 and June 2026. Beyond the headline rate, 11.3% 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 2480 flies

DL 2480 flies BWI to DTW without a single fixed slot. Its most common scheduled departure was 17:26, used on 66 of 359 flights, with 17:25 (60 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 17:2666 flights18.4%
Departs 17:2560 flights16.7%

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 17:26 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and DL 2480 runs 12 points better at 79.9%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

DL 2480 next to BWI to DTW

Every carrier on BWI to DTW combined arrived on time 81.7% of the time across 2,257 flights, so DL 2480 is 2 points behind it. Delta flew 1,204 flights on the same city pair under all its flight numbers, including this one, and those ran 86.8% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 2 points.

DL 2480 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2480thin sample	359	79.9%	112 min	1.67%	B
All Delta Air Lines on BWI–DTW	1,204	86.8%	103 min	1.66%	A
All carriers on BWI–DTW	2,257	81.7%	78 min	1.77%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2480 quarter by quarter

DL 2480 did not run the same all year. Its best quarter was Oct–Dec 2025 at 84.9% on time and its weakest Jan–Mar 2026 at 73.6%, a swing of 11 points on roughly 90 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 flights80.2%
Oct–Dec 202587 flights84.9%
Jan–Mar 202689 flights73.6%
Apr–Jun 202691 flights80.9%

Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2480 ranged from 74.5% on Monday to 84.3% on Friday. With about 51 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 2480 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 55% of the 7,918 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.

Late-arriving aircraft
55%
Carrier
28%
National Airspace System
18%
Extreme weather
0%

55% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 7,918 reported delay minutes here, that single category outweighs weather by 55 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 7,918 delay minutes reported on DL 2480.

Cancellations sit at 1.67% 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. 11.3% 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.

DL 2480 is not only a BWI to DTW flight. It also flew DTW to BWI (357 flights, 79.0% 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.

Other routes flown as DL 2480
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
DTW to BWIthin sample	357	79.0%	85 min	1.12%	B

What to do with this

Booking DL 2480

For a booking, read DL 2480 as 79.9% on time with 1.67% cancelled over 359 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

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.

Key figures