Flight number record

DL 2799

Delta Air Lines · Atlanta to Baltimore

Route: ATL → BWI
Departs: 13:45
Flights: 301
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2799, check with Delta Air Lines.

DL 2799 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 roughly 45 minutes on average. That is a workable record, not a spotless one. That rests on 301 flights, with a median arrival 3 minutes early.

On time

79.1%

Arrivals under 15 minutes late, of 292 completed flights

Avg delay

47 min

Across delayed arrivals only, not all flights

Cancelled

2.33%

National rate is 1.81%

1 hour+ late

4.8%

National rate is 8.1%

These figures cover 301 flights between July 2025 and June 2026. The median arrival is 3 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.

Schedule

When DL 2799 flies

DL 2799 flies ATL to BWI without a single fixed slot. Its most common scheduled departure was 13:45, used on 55 of 301 flights, with 14:00 (49 flights) and 13:50 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 13:4555 flights18.3%
Departs 14:0049 flights16.3%
Departs 13:5041 flights13.6%

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 13:45 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and DL 2799 runs level with that at 79.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 2799 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 2799 is 4 points ahead of 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 3 points.

DL 2799 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2799thin sample	301	79.1%	47 min	2.33%	B
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 2799 quarter by quarter

Quarter by quarter DL 2799 held fairly steady: 83.0% in Jul–Sep 2025, 76.1% in Oct–Dec 2025 and 79.5% in Apr–Jun 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights83.0%
Oct–Dec 202592 flights76.1%
Jan–Mar 202627 flights—
Apr–Jun 202690 flights79.5%

Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2799 did best on Wednesday at 90.7% on time and worst on Monday at 64.3%. Each day rests on about 43 flights, so a gap of 26 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2799 runs late

One category carries most of the weight here. Carrier accounts for 63% of the 2,869 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.

Carrier
63%
Late-arriving aircraft
19%
National Airspace System
13%
Extreme weather
5%

The largest share of delay minutes, 63%, 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 1,818 of the 2,869 delay minutes reported here. The split is drawn from 2,869 delay minutes reported on DL 2799.

Cancellations sit at 2.33% against a national 1.81%, which is ordinary. Diversions add another 0.66%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.8% land an hour or more behind schedule, against 8.1% 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. 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 2799 is not only a ATL to BWI flight. It also flew BWI to ATL (298 flights, 78.3% 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. 301 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 2799
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
BWI to ATLthin sample	298	78.3%	86 min	2.35%	B

What to do with this

Booking DL 2799

For a booking, read DL 2799 as 79.1% on time with 2.33% cancelled over 301 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