Flight number record
DL 530
Delta Air Lines · Atlanta to Denver
- Route
- ATL → DEN
- Departs
- 13:55
- Flights
- 323
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 530, check with Delta Air Lines.
DL 530 lands a B+, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about 50 minutes on average. That rests on 323 flights, with a median arrival 4 minutes early.
Key figures
On time
80.5%
Arrivals under 15 minutes late, of 318 completed flights
Avg delay
50 min
Across delayed arrivals only, not all flights
Cancelled
0.93%
National rate is 1.89%
1 hour+ late
6.3%
National rate is 8.3%
These figures cover 323 flights between September 2025 and August 2026. The median arrival is 4 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When DL 530 flies
DL 530 flies ATL to DEN without a single fixed slot. Its most common scheduled departure was 13:55, used on 38 of 323 flights, with 10:21 (36 flights) next.
- Departs 13:5538 flights11.8%
- Departs 10:2136 flights11.1%
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 13:55 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and DL 530 runs 2 points better at 80.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
DL 530 next to ATL to DEN
Every carrier on ATL to DEN combined arrived on time 78.0% of the time across 5,594 flights, so DL 530 is 3 points ahead of it. Delta flew 2,807 flights on the same city pair under all its flight numbers, including this one, and those ran 79.0% on time. Across its whole network Delta Air Lines managed 81.1%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 530thin sample | 323 | 80.5% | 50 min | 0.93% | B+ |
| All Delta Air Lines on ATL–DEN | 2,807 | 79.0% | 52 min | 1.21% | B |
| All carriers on ATL–DEN | 5,594 | 78.0% | 61 min | 1.11% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 530 quarter by quarter
DL 530 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Jul–Sep 2026 at 74.2%, a swing of 19 points on roughly 65 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 flights93.3%
- Oct–Dec 202580 flights74.7%
- Jan–Mar 202684 flights86.6%
- Apr–Jun 202667 flights80.0%
- Jul–Sep 202662 flights74.2%
Scale runs 65% to 100%.
By weekday, DL 530 did best on Wednesday at 93.5% on time and worst on Saturday at 74.4%. Each day rests on about 46 flights, so a gap of 19 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 530 runs when it is late
The 62 late arrivals split 18 under half an hour, 24 between 30 and 60 minutes, and 20 an hour or more.
- 15+ min early78 flights24.5%
- Within 15 min178 flights56.0%
- 15–29 min late18 flights5.7%
- 30–59 min late24 flights7.5%
- 1–2 hours late19 flights6.0%
- 2+ hours late1 flights0.3%
Scale runs 0% to 100%.
Share of 318 completed flights by arrival against schedule.
8 of 51 late departures made up the time and arrived on time, 16% of them. In the other direction, 19 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at DEN.
The worst days
Worst days for DL 530
The latest arrival of the period was on 30 October 2025, 2 hours 21 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 30 October 2025 | 2 hours 21 minutes | National Airspace System |
| 17 February 2026 | 1 hour 56 minutes | National Airspace System |
| 5 December 2025 | 1 hour 54 minutes | Carrier |
| 3 July 2026 | 1 hour 52 minutes | National Airspace System |
| 2 October 2025 | 1 hour 46 minutes | Carrier |
Delay causes
Why DL 530 runs late
National Airspace System accounts for 46% of the 3,091 delay minutes carriers reported here, and the remaining four split what is left.
- 46%National Airspace System
- 44%Carrier
- 10%Late-arriving aircraft
46% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,414 minutes out of 3,091, against a national NAS share of 21%. The split is drawn from 3,091 delay minutes reported on DL 530.
Cancellations sit at 0.93% against a national 1.89%, which is ordinary. Diversions add another 0.62%.
Connections and routes
What a delay on this flight costs
6.3% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about 50 minutes, which a normal layover absorbs.
The 1,199 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on three other city pairs in the data, including DEN to ATL (60), DTW to RSW (24) and DFW to ATL (15), but none flew often enough under DL 530 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ATL to DEN only.
One caution: this is a thin sample. 323 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 530
For a booking, read DL 530 as 80.5% on time with 0.93% cancelled over 323 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ATL to DEN, every carrier and departure
- DEN to ATL, the return direction
- Delta Air Lines 519 on the same route66.7%
- United Airlines 235 on the same route78.5%
- Delta Air Lines 746 on the same route67.8%
- Delta Air Lines 706 on the same route84.7%
- Frontier Airlines 3293 on the same route81.2%
- United Airlines 340 on the same route91.1%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Denver International (DEN) 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.