Flight number record

DL 2407

Delta Air Lines · Louisville to Atlanta

Route: SDF → ATL
Departs: 06:00
Flights: 255
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2407, check with Delta Air Lines.

DL 2407 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 15 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 255 flights, with a median arrival 18 minutes early.

Set against the rest of the country, DL 2407's record is 15 points better than the US average of 77.3%. That gap is worth roughly 147 fewer late arrivals for every thousand flights.

On time

92.0%

Arrivals under 15 minutes late, of 251 completed flights

Avg delay

85 min

Across delayed arrivals only, not all flights

Cancelled

1.57%

National rate is 1.89%

1 hour+ late

3.2%

National rate is 8.3%

These figures cover 255 flights between September 2025 and August 2026. The median arrival is 18 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.

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Schedule

When DL 2407 flies

DL 2407 is scheduled to leave Louisville (SDF) at 06:00 local time and reach Atlanta (ATL) at 07:24. That slot held for 207 of the 255 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.

Departs 06:00207 flights81.2%

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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 2407 runs 3 points better at 92.0%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

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Against the route

DL 2407 next to SDF to ATL

Every carrier on SDF to ATL combined arrived on time 89.6% of the time across 2,710 flights, so DL 2407 is 2 points ahead of it. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 11 points.

DL 2407 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2407thin sample	255	92.0%	85 min	1.57%	A
All Delta Air Lines on SDF–ATL	2,710	89.6%	89 min	1.55%	A
All carriers on SDF–ATL	2,710	89.6%	89 min	1.55%	A
Delta Air Lines, whole network	1,039,517	81.1%	71 min	1.74%	B

Across the year

DL 2407 quarter by quarter

Quarter by quarter DL 2407 held fairly steady: 88.6% in Jan–Mar 2026, 93.4% in Apr–Jun 2026 and 95.2% in Jul–Sep 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.

Oct–Dec 202512 flights—
Jan–Mar 202690 flights88.6%
Apr–Jun 202691 flights93.4%
Jul–Sep 202662 flights95.2%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2407 ranged from 86.1% on Saturday to 97.2% on Thursday. With about 36 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.

Arrival by arrival

How late DL 2407 runs when it is late

DL 2407 often beats the schedule: 153 of 251 completed flights, 61%, arrived 15 minutes or more early. The 20 late arrivals split 7 under half an hour, 5 between 30 and 60 minutes, and 8 an hour or more.

15+ min early153 flights61.0%
Within 15 min78 flights31.1%
15–29 min late7 flights2.8%
30–59 min late5 flights2.0%
1–2 hours late4 flights1.6%
2+ hours late4 flights1.6%

Scale runs 0% to 100%.

Share of 251 completed flights by arrival against schedule.

Only 19 of 251 completed flights left 15 minutes late or more, too few to say how often the time is made up.

The worst days

Worst days for DL 2407

The latest arrival of the period was on 25 January 2026, 8 hours 34 minutes behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).

The latest arrivals of DL 2407 in the period
Date	Arrived late by	Largest filed cause
25 January 2026	8 hours 34 minutes	Extreme weather
21 February 2026	3 hours 49 minutes	Carrier
15 August 2026	2 hours 37 minutes	Carrier
27 May 2026	2 hours 13 minutes	Carrier
16 March 2026	1 hour 45 minutes	Extreme weather

Delay causes

Why DL 2407 runs late

Carrier accounts for 50% of the 1,693 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
50%
Extreme weather
37%
National Airspace System
13%

Extreme weather accounts for 37% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 6.1 times the usual weather exposure. The split is drawn from 1,693 delay minutes reported on DL 2407.

Cancellations sit at 1.57% against a national 1.89%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 3.2% land an hour or more behind schedule, against 8.3% 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 same number turns up on one other city pair in the data, including CHA to ATL (90), but none flew often enough under DL 2407 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SDF to ATL only.

One caution: this is a thin sample. 255 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 2407

For a booking, read DL 2407 as 92.0% on time with 1.57% cancelled over 255 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures