Flight number record

DL 1594

Delta Air Lines · Atlanta to Tampa

Route: ATL → TPA
Departs: 17:30
Flights: 361
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1594, check with Delta Air Lines.

DL 1594 draws a D. About one flight in three arrives at least 15 minutes late, and the typical late arrival is about 50 minutes behind schedule. Build slack into anything you connect to. That rests on 361 flights, with a median arrival 3 minutes late.

The national on-time rate over the same period is 77.6%, so DL 1594 runs 13 points behind the country as a whole. Across a thousand flights that is about 127 extra late arrivals.

On time

64.9%

Arrivals under 15 minutes late, of 353 completed flights

Avg delay

50 min

Across delayed arrivals only, not all flights

Cancelled

1.39%

National rate is 1.81%

1 hour+ late

10.8%

National rate is 8.1%

These figures cover 361 flights between July 2025 and June 2026. Beyond the headline rate, 10.8% 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 1594 flies

DL 1594 flies ATL to TPA without a single fixed slot. Its most common scheduled departure was 17:30, used on 65 of 361 flights, with 17:20 (52 flights) and 17:25 (45 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 17:3065 flights18.0%
Departs 17:2052 flights14.4%
Departs 17:2545 flights12.5%

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 17:30 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and DL 1594 runs 3 points worse at 64.9%. 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 1594 next to ATL to TPA

Every carrier on ATL to TPA combined arrived on time 73.3% of the time across 6,141 flights, so DL 1594 is 8 points behind it. Delta flew 4,413 flights on the same city pair under all its flight numbers, including this one, and those ran 74.6% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 17 points.

DL 1594 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 1594thin sample	361	64.9%	50 min	1.39%	D
All Delta Air Lines on ATL–TPA	4,413	74.6%	55 min	1.18%	C
All carriers on ATL–TPA	6,141	73.3%	61 min	1.22%	C
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 1594 quarter by quarter

Quarter by quarter DL 1594 held fairly steady: 62.9% in Jul–Sep 2025, 63.3% in Oct–Dec 2025, 62.9% in Jan–Mar 2026 and 70.6% in Apr–Jun 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202591 flights62.9%
Oct–Dec 202592 flights63.3%
Jan–Mar 202690 flights62.9%
Apr–Jun 202688 flights70.6%

Scale runs 55% to 75%. Rows with fewer than 30 flights show a dash.

By weekday, DL 1594 did best on Wednesday at 84.6% on time and worst on Sunday at 50.0%. Each day rests on about 52 flights, so a gap of 35 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 1594 runs late

One category carries most of the weight here. Carrier accounts for 49% of the 6,181 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
49%
National Airspace System
23%
Late-arriving aircraft
20%
Extreme weather
8%

The largest share of delay minutes, 49%, 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 3,053 of the 6,181 delay minutes reported here. The split is drawn from 6,181 delay minutes reported on DL 1594.

Cancellations sit at 1.39% against a national 1.81%, which is ordinary. Diversions add another 0.83%.

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. 10.8% 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 1594 is not only a ATL to TPA flight. It also flew TPA to ATL (272 flights, 69.2% 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. 361 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 1594
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
TPA to ATLthin sample	272	69.2%	65 min	2.21%	C

What to do with this

Booking DL 1594

For a booking, DL 1594 is one of the weaker ways to fly ATL to TPA: 8 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.

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