Flight number record
DL 757
Delta Air Lines · Atlanta to Phoenix
- Route
- ATL → PHX
- Departs
- 19:59
- Flights
- 352
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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, 7 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 352 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.3%, so DL 757 runs 7 points behind the country as a whole. Across a thousand flights that is about 71 extra late arrivals.
Key figures
On time
70.2%
Arrivals under 15 minutes late, of 346 completed flights
Avg delay
60 min
Across delayed arrivals only, not all flights
Cancelled
0.57%
National rate is 1.89%
1 hour+ late
10.1%
National rate is 8.3%
These figures cover 352 flights between September 2025 and August 2026. Beyond the headline rate, 10.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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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 139 of 352 flights.
- Departs 19:59139 flights39.5%
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 19:59 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and DL 757 runs 2 points better at 70.2%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
DL 757 next to ATL to PHX
Every carrier on ATL to PHX combined arrived on time 75.2% of the time across 3,693 flights, so DL 757 is 5 points behind it. Delta flew 2,280 flights on the same city pair under all its flight numbers, including this one, and those ran 75.9% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 757thin sample | 352 | 70.2% | 60 min | 0.57% | C+ |
| All Delta Air Lines on ATL–PHX | 2,280 | 75.9% | 57 min | 0.88% | B+ |
| All carriers on ATL–PHX | 3,693 | 75.2% | 63 min | 0.79% | B+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 757 quarter by quarter
DL 757 did not run the same all year. Its best quarter was Jul–Sep 2026 at 77.6% on time and its weakest Jan–Mar 2026 at 65.9%, a swing of 12 points on roughly 88 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 202530 flights—
- Oct–Dec 202580 flights67.5%
- Jan–Mar 202689 flights65.9%
- Apr–Jun 202691 flights67.0%
- Jul–Sep 202662 flights77.6%
Scale runs 55% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, DL 757 did best on Thursday at 81.2% on time and worst on Sunday at 63.3%. Each day rests on about 50 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 757 runs when it is late
The 103 late arrivals split 33 under half an hour, 35 between 30 and 60 minutes, and 35 an hour or more.
- 15+ min early80 flights23.1%
- Within 15 min163 flights47.1%
- 15–29 min late33 flights9.5%
- 30–59 min late35 flights10.1%
- 1–2 hours late22 flights6.4%
- 2+ hours late13 flights3.8%
Scale runs 0% to 100%.
Share of 346 completed flights by arrival against schedule.
25 of 117 late departures made up the time and arrived on time, 21% of them. 11 flights left on time and still arrived late.
The worst days
Worst days for DL 757
The latest arrival of the period was on 7 December 2025, 4 hours 44 minutes behind schedule; most of its delay minutes were filed as extreme weather. The five worst days are spread across December, March, August and November, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 December 2025 | 4 hours 44 minutes | Extreme weather |
| 6 March 2026 | 3 hours 53 minutes | Extreme weather |
| 16 March 2026 | 3 hours 35 minutes | Carrier |
| 26 August 2026 | 3 hours | National Airspace System |
| 5 November 2025 | 2 hours 50 minutes | National Airspace System |
Delay causes
Why DL 757 runs late
Carrier accounts for 44% of the 6,207 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Carrier
- 26%Late-arriving aircraft
- 22%National Airspace System
- 7%Extreme weather
The largest share of delay minutes, 44%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,756 of the 6,207 delay minutes reported here. The split is drawn from 6,207 delay minutes reported on DL 757.
Cancellations are rare at 0.57%, below the national 1.89% 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
10.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection 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: 5 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.
Related
Where to go next
- ATL to PHX, every carrier and departure
- PHX to ATL, the return direction
- Delta Air Lines 836 on the same route69.9%
- Delta Air Lines 348 on the same route80.1%
- Delta Air Lines 796 on the same route79.6%
- Delta Air Lines 842 on the same route72.8%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Phoenix Sky Harbor International (PHX) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines flight number with a record
- The most and least reliable flight numbers in the US
- The best time of day to fly, according to 7.05 million flight records
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 ; recomputed monthly. How this data is collected.