Flight number record

DL 1587

Delta Air Lines · Tampa to Atlanta

Route: TPA → ATL
Departs: 12:39
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1587, check with Delta Air Lines.

DL 1587 lands a B, 3 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 about an hour on average. That is a workable record, not a spotless one. That rests on 365 flights, with a median arrival 8 minutes early.

On time

80.5%

Arrivals under 15 minutes late, of 359 completed flights

Avg delay

56 min

Across delayed arrivals only, not all flights

Cancelled

1.37%

National rate is 1.81%

1 hour+ late

4.7%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 2026. The median arrival is 8 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 1587 flies

DL 1587 flies TPA to ATL without a single fixed slot. Its most common scheduled departure was 12:39, used on 77 of 365 flights, with 12:37 (59 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 12:3977 flights21.1%
Departs 12:3759 flights16.2%

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 12:39 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and DL 1587 runs level with that at 80.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 1587 next to TPA to ATL

Every carrier on TPA to ATL combined arrived on time 79.9% of the time across 6,138 flights, so DL 1587 is about level with it. Delta flew 4,413 flights on the same city pair under all its flight numbers, including this one, and those ran 81.7% on time. Across its whole network Delta Air Lines managed 81.6%, close to this flight's figure.

DL 1587 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 1587	365	80.5%	56 min	1.37%	B
All Delta Air Lines on TPA–ATL	4,413	81.7%	75 min	1.22%	B
All carriers on TPA–ATL	6,138	79.9%	71 min	1.25%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 1587 quarter by quarter

DL 1587 did not run the same all year. Its best quarter was Apr–Jun 2026 at 88.8% on time and its weakest Oct–Dec 2025 at 76.1%, a swing of 13 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 flights79.3%
Oct–Dec 202592 flights76.1%
Jan–Mar 202690 flights77.9%
Apr–Jun 202691 flights88.8%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, DL 1587 ranged from 78.0% on Sunday to 88.5% on Wednesday. With about 52 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.

Delay causes

Why DL 1587 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 51% of the 3,884 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
51%
Carrier
32%
National Airspace System
16%
Extreme weather
0%

51% 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 3,884 reported delay minutes here, that single category outweighs weather by 51 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 3,884 delay minutes reported on DL 1587.

Cancellations sit at 1.37% against a national 1.81%, which is ordinary. Diversions add another 0.27%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.7% 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.

DL 1587 is not only a TPA to ATL flight. It also flew ATL to TPA (365 flights, 80.2% 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. 365 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 1587
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
ATL to TPA	365	80.2%	42 min	1.92%	B

What to do with this

Booking DL 1587

For a booking, read DL 1587 as 80.5% on time with 1.37% cancelled over 365 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