Flight number record

DL 2720

Delta Air Lines · Atlanta to Jacksonville

Route: ATL → JAX
Departs: 15:20
Flights: 363
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2720, check with Delta Air Lines.

DL 2720 lands a B, about a point worse than the national rate of 77.6%. About one flight in four arrives 15 minutes late or worse, and those flights are late by roughly 55 minutes on average. That is a workable record, not a spotless one. That rests on 363 flights, with a median arrival 2 minutes early.

On time

76.5%

Arrivals under 15 minutes late, of 357 completed flights

Avg delay

53 min

Across delayed arrivals only, not all flights

Cancelled

1.38%

National rate is 1.81%

1 hour+ late

6.7%

National rate is 8.1%

These figures cover 363 flights between July 2025 and June 2026. The median arrival is 2 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 2720 flies

DL 2720 flies ATL to JAX without a single fixed slot. Its most common scheduled departure was 15:20, used on 82 of 363 flights, with 15:25 (38 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 15:2082 flights22.6%
Departs 15:2538 flights10.5%

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 15:20 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 2720 runs 4 points better at 76.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 2720 next to ATL to JAX

Every carrier on ATL to JAX combined arrived on time 75.5% of the time across 4,017 flights, so DL 2720 is about level with it. Delta flew 3,829 flights on the same city pair under all its flight numbers, including this one, and those ran 76.3% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 5 points.

DL 2720 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2720thin sample	363	76.5%	53 min	1.38%	B
All Delta Air Lines on ATL–JAX	3,829	76.3%	57 min	1.44%	B
All carriers on ATL–JAX	4,017	75.5%	57 min	1.42%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2720 quarter by quarter

DL 2720 did not run the same all year. Its best quarter was Apr–Jun 2026 at 84.1% on time and its weakest Jul–Sep 2025 at 59.3%, a swing of 25 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 flights59.3%
Oct–Dec 202590 flights82.2%
Jan–Mar 202690 flights80.7%
Apr–Jun 202691 flights84.1%

Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2720 did best on Wednesday at 86.5% on time and worst on Sunday at 64.7%. Each day rests on about 52 flights, so a gap of 22 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2720 runs late

One category carries most of the weight here. Carrier accounts for 63% of the 4,412 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
17%
National Airspace System
17%
Extreme weather
3%

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 2,762 of the 4,412 delay minutes reported here. The split is drawn from 4,412 delay minutes reported on DL 2720.

Cancellations sit at 1.38% against a national 1.81%, which is ordinary. Diversions add another 0.28%.

Connections and routes

What a delay on this flight costs

6.7% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last roughly 55 minutes, which a normal layover absorbs.

DL 2720 is not only a ATL to JAX flight. It also flew JAX to ATL (360 flights, 77.4% 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. 363 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 2720
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
JAX to ATLthin sample	360	77.4%	77 min	1.39%	B

What to do with this

Booking DL 2720

For a booking, read DL 2720 as 76.5% on time with 1.38% cancelled over 363 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