Route profile
LAS→DAL
Flight reliability, delays and best times to fly from Las Vegas to Dallas, 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 43% of comparable major US routes (4,598 compared)
Calculated from 9,090 flights. How this is calculated
LAS → DAL arrives on time 74.2% of the time; the return trip, DAL → LAS, arrives on time 76.6% of the time, a 2.3-point gap between the two directions of the same city pair.
LAS → DAL spends 21.4 minutes on the ground on a 1,067-mile trip: 16.0 minutes from pushback to wheels-up at LAS and 5.4 minutes from touchdown to gate at DAL.
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 96% of 4,023 comparable routes.
91.2% on time for 5–9 AM departures, against 57.1% for 6–9 PM.
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.
What sets this route apart
Where LAS to DAL differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
LAS to DAL struggles most at 12 PM: 65.9% of its flights scheduled then arrive on time, 12.2 points behind the 78.1% on routes of similar length at the same hour. Against all other routes the gap is 13.5 points.
LAS to DAL is at its best against routes of similar length for flights scheduled at 6 AM: 94.2% arrive on time, 3.9 points ahead of the 90.3% those routes manage at that hour. Against all other routes the gap is 3.4 points.
Thursday is the day LAS to DAL slips furthest against routes of similar length, 69.6% on time where they average 75.8%, 6.2 points lower. Against all other routes the gap is 7.2 points.
LAS to DAL holds up on Saturdays better than routes of similar length do: 81.9% on time to their 77.1%, a 4.8 points lead. Against all other routes the gap is 2.8 points.
In October, LAS to DAL runs 7.9 points below routes of similar length, 74.9% on time to 82.8%. Against all other routes the gap is 8.1 points.
LAS to DAL against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 12 PM departures | 65.9% | routes of similar length | 78.1% | −12.2 pts | 408 here, 171,229 there |
| Hour: 6 AM departures | 94.2% | routes of similar length | 90.3% | +3.9 pts | 688 here, 219,307 there |
| Weekday: Thursday | 69.6% | routes of similar length | 75.8% | −6.2 pts | 1,361 here, 423,442 there |
| Weekday: Saturday | 81.9% | routes of similar length | 77.1% | +4.8 pts | 934 here, 384,399 there |
| Month: October | 74.9% | routes of similar length | 82.8% | −7.9 pts | 761 here, 234,556 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 1,067 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
Why LAS → DAL flights are cancelled
July 2023 – July 2026
LAS → DAL cancelled 112 of 9,090 scheduled flights — about 1 in every 81. The reason filed most often was extreme weather, 55.4% of the cancellations coded on this route — about 1 in every 147 scheduled flights.
Share of cancellations
Of 112 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.
62 cancellations, 55.4% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
32 cancellations, 28.6% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
18 cancellations, 16.1% 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.
112 coded cancellations were recorded on LAS → DAL; the section appears from 50.
When it goes wrong
July 2023 – July 2026
44 min late
against a median of 2 min early
Percentiles over 9,090 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at DAL after arriving from LAS.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 45% | Likely to miss |
| 45 min | 25% | High risk |
| 60 min | 15% | Some risk |
| 90 min | 6.7% | Some risk |
| 120 min | 3.4% | 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 1.23% of the time and diverts 0.46% of the time, which a late arrival never shows up in.
Chance of missing is the share of 8,936 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 44 minutes late (90th-percentile gate arrival delay), over 9,090 operations.
Any other layover length: connection checker.
Best time to fly
LAS → DAL flights departing 5–9 AM arrived on time 91.2% of the time, against 57.1% for 6–9 PM departures, a gap of 34.1 percentage points.
By departure window
By departure hour
- 12 AM to 4 AM: too few flights to score
- 5 AM: 94.6% on time from 819 flights
- 6 AM: 94.2% on time from 699 flights
- 7 AM: 88.6% on time from 671 flights
- 8 AM: 86.6% on time from 687 flights
- 9 AM: 83.8% on time from 589 flights
- 10 AM: 77.7% on time from 514 flights
- 11 AM: 74.6% on time from 435 flights
- 12 PM: 65.9% on time from 414 flights
- 1 PM: 65.2% on time from 645 flights
- 2 PM: 61.7% on time from 517 flights
- 3 PM: 61.5% on time from 525 flights
- 4 PM: 62.9% on time from 753 flights
- 5 PM: 63.5% on time from 891 flights
- 6 PM: 57.0% on time from 898 flights
- 7 PM to 11 PM: too few flights to score
Why LAS → DAL 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 LAS → DAL. Only delays of 15 minutes or more are attributed.
Late-arriving aircraft is the largest cause on LAS → DAL, at 43.5%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 91.2% of the time and 6–9 PM departures 57.1%.
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 | 9,090 | 74.2% | 1.23% | -2 min | 6.8% |
Other ways to fly Las Vegas to Dallas–Fort Worth
Airport pairs in the same two city markets, as the DOT defines them.
| Route | Flights | On time | Cancelled | Median delay | Score |
|---|---|---|---|---|---|
| LAS→DFW Las Vegas to Dallas–Fort Worth | 17,679 | 78.1% | 2.10% | -8 min | 56 |
| LAS→DAL this route Las Vegas to Dallas | 9,090 | 74.2% | 1.23% | -2 min | 63 |
LAS → DAL is the most reliable pairing for this journey at 74.2% on time, against 78.1% for LAS → DFW.
Weekly and seasonal patterns
By day of week
Saturday is historically the most reliable day and Sunday the least, a gap of 14.4 percentage points.
By month
- Jan: 79.2%
- Feb: 76.4%
- Mar: 73.8%
- Apr: 76.0%
- May: 68.8%
- Jun: 68.3%
- Jul: 66.1%
- Aug: 73.1%
- Sep: 77.9%
- Oct: 74.9%
- Nov: 78.6%
- Dec: 80.8%
July is historically the weakest month and December the strongest, a spread of 14.7 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 61.5% from 253 flights
- August 2023: 72.1% from 265 flights
- September 2023: 73.4% from 248 flights
- October 2023: 70.5% from 263 flights
- November 2023: 82.1% from 252 flights
- December 2023: 81.9% from 261 flights
- January 2024: 74.4% from 242 flights
- February 2024: 76.4% from 220 flights
- March 2024: 74.2% from 254 flights
- April 2024: 76.4% from 257 flights
- May 2024: 71.8% from 265 flights
- June 2024: 69.1% from 247 flights
- July 2024: 72.9% from 252 flights
- August 2024: 72.9% from 230 flights
- September 2024: 79.3% from 220 flights
- October 2024: 86.5% from 251 flights
- November 2024: 79.9% from 256 flights
- December 2024: 78.5% from 249 flights
- January 2025: 83.5% from 249 flights
- February 2025: 82.4% from 223 flights
- March 2025: 79.1% from 257 flights
- April 2025: 76.6% from 260 flights
- May 2025: 72.4% from 267 flights
- June 2025: 76.0% from 252 flights
- July 2025: 66.4% from 255 flights
- August 2025: 74.8% from 208 flights
- September 2025: 82.1% from 197 flights
- October 2025: 67.9% from 256 flights
- November 2025: 73.6% from 257 flights
- December 2025: 81.7% from 257 flights
- January 2026: 79.8% from 224 flights
- February 2026: 70.0% from 213 flights
- March 2026: 67.9% from 248 flights
- April 2026: 75.1% from 251 flights
- May 2026: 61.9% from 259 flights
- June 2026: 59.0% from 235 flights
- July 2026: 63.4% from 237 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 71.2% against 77.7% in the 12 months before — declining by 6.5 percentage points.
Data and methodology
Calculated by FlyerIntel from 9,090 LAS → DAL 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