Flight number record
DL 919
Delta Air Lines · Atlanta to Las Vegas
- Route
- ATL → LAS
- Departs
- 18:30
- Flights
- 278
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 919, check with Delta Air Lines.
DL 919 sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 278 flights, with a median arrival 5 minutes early.
Key figures
On time
74.7%
Arrivals under 15 minutes late, of 277 completed flights
Avg delay
57 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
7.2%
National rate is 8.3%
These figures cover 278 flights between September 2025 and August 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.
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Schedule
When DL 919 flies
DL 919 flies ATL to LAS without a single fixed slot. Its most common scheduled departure was 18:30, used on 80 of 278 flights, with 19:15 (49 flights) and 17:03 (36 flights) next.
- Departs 18:3080 flights28.8%
- Departs 19:1549 flights17.6%
- Departs 17:0336 flights12.9%
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 18:30 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and DL 919 runs 7 points better at 74.7%. 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 919 next to ATL to LAS
Every carrier on ATL to LAS combined arrived on time 74.8% of the time across 4,758 flights, so DL 919 is about level with it. Delta flew 3,324 flights on the same city pair under all its flight numbers, including this one, and those ran 76.5% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 919thin sample | 278 | 74.7% | 57 min | 0.00% | C+ |
| All Delta Air Lines on ATL–LAS | 3,324 | 76.5% | 57 min | 0.66% | B+ |
| All carriers on ATL–LAS | 4,758 | 74.8% | 63 min | 0.78% | C+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 919 quarter by quarter
DL 919 did not run the same all year. Its best quarter was Jul–Sep 2025 at 83.3% on time and its weakest Apr–Jun 2026 at 64.2%, a swing of 19 points on roughly 70 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 flights83.3%
- Oct–Dec 202591 flights74.4%
- Jan–Mar 202690 flights80.0%
- Apr–Jun 202667 flights64.2%
Scale runs 55% to 90%.
By weekday, DL 919 did best on Wednesday at 90.0% on time and worst on Thursday at 59.0%. Each day rests on about 40 flights, so a gap of 31 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 919 runs when it is late
DL 919 often beats the schedule: 79 of 277 completed flights, 29%, arrived 15 minutes or more early. The 70 late arrivals split 25 under half an hour, 25 between 30 and 60 minutes, and 20 an hour or more.
- 15+ min early79 flights28.5%
- Within 15 min128 flights46.2%
- 15–29 min late25 flights9.0%
- 30–59 min late25 flights9.0%
- 1–2 hours late13 flights4.7%
- 2+ hours late7 flights2.5%
Scale runs 0% to 100%.
Share of 277 completed flights by arrival against schedule.
12 of 67 late departures made up the time and arrived on time, 18% of them. In the other direction, 15 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 LAS.
The worst days
Worst days for DL 919
The latest arrival of the period was on 6 March 2026, 4 hours 48 minutes behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 March 2026 | 4 hours 48 minutes | Extreme weather |
| 10 October 2025 | 4 hours 9 minutes | Late-arriving aircraft |
| 29 May 2026 | 3 hours 1 minute | Carrier |
| 9 November 2025 | 2 hours 50 minutes | Late-arriving aircraft |
| 15 March 2026 | 2 hours 17 minutes | Late-arriving aircraft |
Delay causes
Why DL 919 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 3,964 reported delay minutes.
- 39%Carrier
- 28%National Airspace System
- 21%Late-arriving aircraft
- 10%Extreme weather
- 1%Security
The largest share of delay minutes, 39%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,548 of the 3,964 delay minutes reported here. The split is drawn from 3,964 delay minutes reported on DL 919.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
7.2% 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 an hour, which a normal layover absorbs.
At 1,747 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 PDX to DTW (46), but none flew often enough under DL 919 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ATL to LAS only.
One caution: this is a thin sample. 278 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 919
For a booking, read DL 919 as 74.7% on time with 0.00% cancelled over 278 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ATL to LAS, every carrier and departure
- LAS to ATL, the return direction
- Delta Air Lines 711 on the same route77.4%
- Delta Air Lines 549 on the same route76.9%
- Delta Air Lines 777 on the same route85.5%
- Delta Air Lines 659 on the same route77.6%
- Delta Air Lines 466 on the same route79.3%
- Frontier Airlines 3923 on the same route57.0%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Harry Reid International (LAS) 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
- Worst months to fly in the US, ranked by the data
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.