Flight number record

DL 757

Delta Air Lines · Atlanta to Phoenix

Route: ATL → PHX
Departs: 19:59
Flights: 352
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 757, check with Delta Air Lines.

DL 757 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 352 flights, with a median arrival 1 minute early.

The national on-time rate over the same period is 77.6%, so DL 757 runs 9 points behind the country as a whole. Across a thousand flights that is about 92 extra late arrivals.

On time

68.4%

Arrivals under 15 minutes late, of 348 completed flights

Avg delay

57 min

Across delayed arrivals only, not all flights

Cancelled

0.57%

National rate is 1.81%

1 hour+ late

10.3%

National rate is 8.1%

These figures cover 352 flights between July 2025 and June 2026. Beyond the headline rate, 10.3% 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 757 flies

DL 757 flies ATL to PHX without a single fixed slot. Its most common scheduled departure was 19:59, used on 138 of 352 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 19:59138 flights39.2%

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 19:59 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and DL 757 runs level with that at 68.4%. 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 757 next to ATL to PHX

Every carrier on ATL to PHX combined arrived on time 75.4% of the time across 3,762 flights, so DL 757 is 7 points behind it. Delta flew 2,301 flights on the same city pair under all its flight numbers, including this one, and those ran 76.0% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 13 points.

DL 757 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 757thin sample	352	68.4%	57 min	0.57%	C+
All Delta Air Lines on ATL–PHX	2,301	76.0%	59 min	0.87%	B+
All carriers on ATL–PHX	3,762	75.4%	63 min	0.72%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 757 quarter by quarter

Quarter by quarter DL 757 held fairly steady: 73.0% in Jul–Sep 2025, 67.5% in Oct–Dec 2025, 65.9% in Jan–Mar 2026 and 67.0% 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 flights73.0%
Oct–Dec 202580 flights67.5%
Jan–Mar 202689 flights65.9%
Apr–Jun 202691 flights67.0%

Scale runs 55% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, DL 757 ranged from 63.5% on Monday to 73.9% on Thursday. With about 50 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 757 runs late

One category carries most of the weight here. Carrier accounts for 43% of the 6,251 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
43%
Late-arriving aircraft
28%
National Airspace System
22%
Extreme weather
8%

The largest share of delay minutes, 43%, 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 2,676 of the 6,251 delay minutes reported here. The split is drawn from 6,251 delay minutes reported on DL 757.

Cancellations are rare at 0.57%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

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. 10.3% 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.

At 1,587 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

The same number turns up on one other city pair in the data, including PHX to ATL (36), but none flew often enough under DL 757 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ATL to PHX only.

One caution: this is a thin sample. 352 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 757

For a booking, DL 757 is one of the weaker ways to fly ATL to PHX: 7 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