Route profile
LAS→AUS
Flight reliability, delays and best times to fly from Las Vegas to Austin, 1,090 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 52% of comparable major US routes (4,598 compared)
Calculated from 9,734 flights. How this is calculated · What counts as on time
LAS → AUS arrives on time 75.6% of the time; the return trip, AUS → LAS, arrives on time 76.1% of the time.
LAS → AUS spends 24.1 minutes on the ground on a 1,090-mile trip: 16.7 minutes from pushback to wheels-up at LAS and 7.3 minutes from touchdown to gate at AUS.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What sets this route apart
Where LAS to AUS differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
LAS to AUS struggles most at 12 PM: 64.5% of its flights scheduled then arrive on time, 13.4 points behind the 77.9% on routes of similar length at the same hour. Against all other routes the gap is 14.9 points.
LAS to AUS holds up on Saturdays better than routes of similar length do: 83.0% on time to their 77.0%, a 6 points lead. Against all other routes the gap is 3.9 points.
In October, LAS to AUS runs 6.3 points below routes of similar length, 76.2% on time to 82.5%. Against all other routes the gap is 6.8 points.
December is kinder to LAS to AUS than to routes of similar length: 82.8% on time against 77.0%, 5.8 points better. Against all other routes the gap is 4 points.
Delta Air Lines’ flights on LAS to AUS arrive on time 71.7% of the time, 8.8 points below the 80.5% it manages on its routes of similar length. Against all other routes the gap is 9.8 points.
LAS to AUS against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 12 PM departures | 64.5% | routes of similar length | 77.9% | −13.4 pts | 276 here, 168,135 there |
| Weekday: Saturday | 83.0% | routes of similar length | 77.0% | +6.0 pts | 1,012 here, 378,624 there |
| Month: October | 76.2% | routes of similar length | 82.5% | −6.3 pts | 844 here, 230,518 there |
| Month: December | 82.8% | routes of similar length | 77.0% | +5.8 pts | 818 here, 239,724 there |
| Airline: Delta Air Lines | 71.7% | routes of similar length | 80.5% | −8.8 pts | 1,013 here, 479,909 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 1,090 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.
When it goes wrong
July 2023 – July 2026
46 min late
against a median of 3 min early
Percentiles over 9,734 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at AUS after arriving from LAS.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 43% | Likely to miss |
| 45 min | 23% | High risk |
| 60 min | 15% | Some risk |
| 90 min | 7.2% | Some risk |
| 120 min | 4.1% | 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 0.50% of the time and diverts 0.29% of the time, which a late arrival never shows up in.
Chance of missing is the share of 9,657 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 46 minutes late (90th-percentile gate arrival delay), over 9,734 operations.
Any other layover length: connection checker.
Best time to fly
LAS → AUS flights departing 5–9 AM arrived on time 91.6% of the time, against 61.9% for 6–9 PM departures, a gap of 29.7 percentage points.
By departure window
By departure hour
- 12 AM to 4 AM: too few flights to score
- 5 AM: 94.8% on time from 661 flights
- 6 AM: 93.9% on time from 792 flights
- 7 AM: 88.6% on time from 674 flights
- 8 AM: 89.1% on time from 767 flights
- 9 AM: 79.1% on time from 427 flights
- 10 AM: 76.8% on time from 380 flights
- 11 AM: 77.1% on time from 628 flights
- 12 PM: 64.5% on time from 277 flights
- 1 PM: 70.3% on time from 468 flights
- 2 PM: 67.5% on time from 667 flights
- 3 PM: 57.0% on time from 384 flights
- 4 PM: 64.0% on time from 696 flights
- 5 PM: 70.5% on time from 1,643 flights
- 6 PM: 66.0% on time from 415 flights
- 7 PM: 59.4% on time from 436 flights
- 8 PM: 59.4% on time from 258 flights
- 9 PM to 11 PM: too few flights to score
Why LAS → AUS 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 → AUS. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on LAS → AUS, at 50.9%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 91.6% of the time and 6–9 PM departures 61.9%.
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 | 6,586 | 75.1% | 0.39% | -1 min | 6.2% |
| Delta Air Lines | 1,026 | 71.7% | 0.88% | -7 min | 12.2% |
| American Airlines | 718 | 75.8% | 0.42% | -8 min | 11.1% |
| Frontier Airlines | 709 | 77.6% | 1.27% | -9 min | 9.9% |
| Spirit Airlines | 526 | 85.9% | 0.19% | -9 min | 4.0% |
Southwest Airlines flew 68.9% of the 9,565 flights listed. Frontier Airlines cancelled 1.27% of its flights here against 0.19% for Spirit Airlines.
Spirit Airlines arrived on time 14.2 percentage points more often than Delta Air Lines on this route.
Weekly and seasonal patterns
By day of week
Wednesday is historically the most reliable day and Sunday the least, a gap of 13.2 percentage points.
By month
- Jan: 80.1%
- Feb: 81.3%
- Mar: 73.2%
- Apr: 76.2%
- May: 70.0%
- Jun: 69.4%
- Jul: 67.0%
- Aug: 76.5%
- Sep: 76.6%
- Oct: 76.2%
- Nov: 81.5%
- Dec: 82.8%
July is historically the weakest month and December the strongest, a spread of 15.8 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 73.7% from 262 flights
- August 2023: 74.4% from 261 flights
- September 2023: 74.5% from 283 flights
- October 2023: 74.3% from 344 flights
- November 2023: 85.4% from 301 flights
- December 2023: 85.0% from 308 flights
- January 2024: 77.4% from 268 flights
- February 2024: 84.8% from 244 flights
- March 2024: 69.2% from 309 flights
- April 2024: 72.8% from 307 flights
- May 2024: 71.6% from 315 flights
- June 2024: 71.8% from 292 flights
- July 2024: 65.7% from 294 flights
- August 2024: 74.7% from 281 flights
- September 2024: 77.3% from 256 flights
- October 2024: 82.9% from 253 flights
- November 2024: 85.4% from 241 flights
- December 2024: 79.1% from 258 flights
- January 2025: 84.2% from 231 flights
- February 2025: 82.7% from 233 flights
- March 2025: 78.3% from 280 flights
- April 2025: 80.5% from 273 flights
- May 2025: 71.8% from 265 flights
- June 2025: 71.4% from 253 flights
- July 2025: 62.1% from 245 flights
- August 2025: 81.2% from 224 flights
- September 2025: 78.5% from 218 flights
- October 2025: 72.0% from 251 flights
- November 2025: 72.8% from 243 flights
- December 2025: 83.8% from 253 flights
- January 2026: 78.9% from 214 flights
- February 2026: 75.8% from 211 flights
- March 2026: 72.5% from 259 flights
- April 2026: 75.8% from 248 flights
- May 2026: 66.0% from 249 flights
- June 2026: 64.7% from 250 flights
- July 2026: 66.3% from 257 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 73.8% against 77.4% in the 12 months before — declining by 3.6 percentage points.
Data and methodology
Calculated by FlyerIntel from 9,734 LAS → AUS 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