Route profile
DAL→LAS
Flight reliability, delays and best times to fly from Dallas to Las Vegas, 1,067 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 53% of comparable major US routes (4,598 compared)
Calculated from 9,094 flights. How this is calculated
DAL → LAS arrives on time 76.6% of the time; the return trip, LAS → DAL, arrives on time 74.2% of the time, a 2.3-point gap between the two directions of the same city pair.
DAL → LAS spends 18.6 minutes on the ground on a 1,067-mile trip: 12.8 minutes from pushback to wheels-up at DAL and 5.8 minutes from touchdown to gate at LAS.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
On-time performance swings unusually widely by time of day here, wider than 95% of 4,023 comparable routes.
92.3% on time for 5–9 AM departures, against 58.7% for 9 PM–5 AM.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 4,023 in the comparison.
Why DAL → LAS flights are cancelled
July 2023 – July 2026
DAL → LAS cancelled 101 of 9,094 scheduled flights — about 1 in every 90. The reason filed most often was extreme weather, 65.3% of the cancellations coded on this route — about 1 in every 138 scheduled flights.
Share of cancellations
Of 101 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
66 cancellations, 65.3% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
26 cancellations, 25.7% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
9 cancellations, 8.9% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. With only one or two carriers on the route, the split mostly reflects how they file. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
101 coded cancellations were recorded on DAL → LAS; the section appears from 50.
When it goes wrong
July 2023 – July 2026
42 min late
against a median of 3 min early
Percentiles over 9,094 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at LAS after arriving from DAL.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 42% | Likely to miss |
| 45 min | 23% | High risk |
| 60 min | 14% | Some risk |
| 90 min | 6.3% | Some risk |
| 120 min | 3.5% | Low risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 1.11% of the time and diverts 0.12% of the time, which a late arrival never shows up in.
Chance of missing is the share of 8,982 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 42 minutes late (90th-percentile gate arrival delay), over 9,094 operations.
Any other layover length: connection checker.
Best time to fly
DAL → LAS flights departing 5–9 AM arrived on time 92.3% of the time, against 58.7% for 9 PM–5 AM departures, a gap of 33.6 percentage points.
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 95.3% on time from 952 flights
- 7 AM: 90.2% on time from 710 flights
- 8 AM: 89.5% on time from 494 flights
- 9 AM: 87.2% on time from 599 flights
- 10 AM: 79.9% on time from 566 flights
- 11 AM: 82.2% on time from 519 flights
- 12 PM: 80.7% on time from 498 flights
- 1 PM: 74.3% on time from 535 flights
- 2 PM: 72.5% on time from 374 flights
- 3 PM: 70.8% on time from 577 flights
- 4 PM: 66.8% on time from 535 flights
- 5 PM: 67.6% on time from 466 flights
- 6 PM: 65.5% on time from 451 flights
- 7 PM: 63.9% on time from 644 flights
- 8 PM: 62.9% on time from 488 flights
- 9 PM: 62.5% on time from 365 flights
- 10 PM: 54.4% on time from 321 flights
- 11 PM: too few flights to score
Why DAL → LAS runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for DAL → LAS. Only delays of 15 minutes or more are attributed.
Late-arriving aircraft is the largest cause on DAL → LAS, at 50.3%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 92.3% of the time and 9 PM–5 AM departures 58.7%.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| Southwest Airlines | 9,094 | 76.6% | 1.11% | -3 min | 6.4% |
Other ways to fly Dallas–Fort Worth to Las Vegas
Airport pairs in the same two city markets, as the DOT defines them.
| Route | Flights | On time | Cancelled | Median delay | Score |
|---|---|---|---|---|---|
| DFW→LAS Dallas–Fort Worth to Las Vegas | 17,678 | 68.8% | 2.02% | -1 min | 42 |
| DAL→LAS this route Dallas to Las Vegas | 9,094 | 76.6% | 1.11% | -3 min | 67 |
DAL → LAS is the most reliable pairing for this journey at 76.6% on time, against 68.8% for DFW → LAS.
Flying to LAS from the Dallas–Fort Worth area? Compare DAL, DFW for LAS, with the same test for what counts as a real difference.
Weekly and seasonal patterns
By day of week
Wednesday is historically the most reliable day and Thursday the least, a gap of 8.6 percentage points.
By month
- Jan: 78.8%
- Feb: 81.2%
- Mar: 78.6%
- Apr: 75.1%
- May: 68.1%
- Jun: 66.5%
- Jul: 71.7%
- Aug: 81.8%
- Sep: 76.3%
- Oct: 80.9%
- Nov: 80.7%
- Dec: 81.2%
June is historically the weakest month and August the strongest, a spread of 15.3 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 67.6% from 255 flights
- August 2023: 79.2% from 267 flights
- September 2023: 70.0% from 248 flights
- October 2023: 76.4% from 263 flights
- November 2023: 83.3% from 253 flights
- December 2023: 84.3% from 261 flights
- January 2024: 71.2% from 240 flights
- February 2024: 76.6% from 216 flights
- March 2024: 77.3% from 253 flights
- April 2024: 75.0% from 254 flights
- May 2024: 59.9% from 262 flights
- June 2024: 77.8% from 246 flights
- July 2024: 75.7% from 252 flights
- August 2024: 85.3% from 231 flights
- September 2024: 77.6% from 219 flights
- October 2024: 88.0% from 251 flights
- November 2024: 79.9% from 256 flights
- December 2024: 79.9% from 251 flights
- January 2025: 85.2% from 247 flights
- February 2025: 87.2% from 221 flights
- March 2025: 77.3% from 257 flights
- April 2025: 81.6% from 259 flights
- May 2025: 79.2% from 266 flights
- June 2025: 69.9% from 254 flights
- July 2025: 74.9% from 255 flights
- August 2025: 81.3% from 209 flights
- September 2025: 82.7% from 198 flights
- October 2025: 78.6% from 257 flights
- November 2025: 78.8% from 257 flights
- December 2025: 79.3% from 257 flights
- January 2026: 80.3% from 225 flights
- February 2026: 79.5% from 211 flights
- March 2026: 81.4% from 247 flights
- April 2026: 68.7% from 251 flights
- May 2026: 64.8% from 260 flights
- June 2026: 51.3% from 238 flights
- July 2026: 68.7% from 247 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 74.3% against 80.4% in the 12 months before — declining by 6.1 percentage points.
Data and methodology
Calculated by FlyerIntel from 9,094 DAL → LAS flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed