Flight number record
DL 530
Delta Air Lines · Atlanta to Denver
- Route
- ATL → DEN
- Departs
- 13:57
- Flights
- 323
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 530, check with Delta Air Lines.
DL 530 lands a B+, 4 points better than the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 50 minutes on average. That is a workable record, not a spotless one. That rests on 323 flights, with a median arrival 5 minutes early.
Set against the rest of the country, DL 530's record is 4 points better than the US average of 77.6%. That gap is worth roughly 40 fewer late arrivals for every thousand flights.
Key figures
On time
81.6%
Arrivals under 15 minutes late, of 316 completed flights
Avg delay
48 min
Across delayed arrivals only, not all flights
Cancelled
0.93%
National rate is 1.81%
1 hour+ late
5.7%
National rate is 8.1%
These figures cover 323 flights between July 2025 and June 2026. The median arrival is 5 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 530 flies
DL 530 flies ATL to DEN without a single fixed slot. Its most common scheduled departure was 13:57, used on 58 of 323 flights, with 10:21 (36 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 13:5758 flights18.0%
- Departs 10:2136 flights11.1%
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 13:57 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and DL 530 runs 3 points better at 81.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
DL 530 next to ATL to DEN
Every carrier on ATL to DEN combined arrived on time 77.6% of the time across 5,589 flights, so DL 530 is 4 points ahead of it. Delta flew 2,805 flights on the same city pair under all its flight numbers, including this one, and those ran 78.1% on time. Across its whole network Delta Air Lines managed 81.6%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 530thin sample | 323 | 81.6% | 48 min | 0.93% | B+ |
| All Delta Air Lines on ATL–DEN | 2,805 | 78.1% | 52 min | 1.11% | B |
| All carriers on ATL–DEN | 5,589 | 77.6% | 60 min | 1.02% | B |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 530 quarter by quarter
DL 530 did not run the same all year. Its best quarter was Jan–Mar 2026 at 86.6% on time and its weakest Oct–Dec 2025 at 74.7%, a swing of 12 points on roughly 81 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 flights84.4%
- Oct–Dec 202580 flights74.7%
- Jan–Mar 202684 flights86.6%
- Apr–Jun 202667 flights80.0%
Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, DL 530 did best on Wednesday at 93.5% on time and worst on Monday at 68.2%. Each day rests on about 46 flights, so a gap of 25 points is worth noticing but could still narrow in another year.
Delay causes
Why DL 530 runs late
One category carries most of the weight here. Carrier accounts for 47% of the 2,762 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.
- 47%Carrier
- 42%National Airspace System
- 10%Late-arriving aircraft
- 1%Extreme weather
42% 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 1,170 minutes out of 2,762, against a national NAS share of 21%. The split is drawn from 2,762 delay minutes reported on DL 530.
Cancellations sit at 0.93% against a national 1.81%, which is ordinary. Diversions add another 1.24%.
Connections and routes
What a delay on this flight costs
5.7% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last roughly 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
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 81.6% 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 route64.8%
- United Airlines 235 on the same route80.2%
- Frontier Airlines 3293 on the same route79.2%
- Delta Air Lines 746 on the same route66.3%
- Delta Air Lines 706 on the same route85.5%
- Delta Air Lines 493 on the same route75.4%
- 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 7.04 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.