LAS to AUS flight delays & on-time performance
Nonstop flights from Harry Reid International Airport to Austin Bergstrom International Airport · 1,090 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at LAS or AUS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Las Vegas (LAS) to Austin (AUS) arrived on time 74% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.5% were cancelled, and 8% arrived an hour or more late.
- Frontier Airlines was the most punctual airline here (81% on time); Delta Air Lines was the least (71%).
- Departures scheduled around 5am did best (93% on time); around 7pm did worst (50%).
- Wednesday was the most reliable day to fly (85% on time) and Monday the least (67%).
- The largest source of delay minutes was late-arriving aircraft (50%).
Which airline is most on time from LAS to AUS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Allegiant Air | 84% | 0.0% | 15 min | 5.3% | 19 |
| Frontier Airlines | 81% | 1.0% | 14 min | 8.6% | 295 |
| Southwest Airlines | 73% | 0.3% | 15 min | 6.6% | 2,194 |
| Delta Air Lines | 71% | 0.8% | 24 min | 12.8% | 365 |
| Spirit Airlines | 50% | 0.0% | 37 min | 25.0% | 4 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am93%160 flights
- 6am93%203 flights
- 7am86%282 flights
- 8am87%214 flights
- 9am74%199 flights
- 10am80%45 flights
- 11am79%169 flights
- 12pm66%126 flights
- 1pm72%146 flights
- 2pm73%150 flights
- 3pm53%151 flights
- 4pm67%250 flights
- 5pm68%494 flights
- 6pm58%55 flights
- 7pm50%153 flights
- 8pm57%67 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday67%0.4% cancelled
- Tuesday82%0.3% cancelled
- Wednesday85%0.0% cancelled
- Thursday72%0.0% cancelled
- Friday68%1.3% cancelled
- Saturday82%0.7% cancelled
- Sunday68%0.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft50%
- Airline (crew, maintenance, cleaning, fueling)32%
- Air traffic control & airport congestion16%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather46%
- Airline (crew, maintenance, cleaning, fueling)31%
- Air traffic control & airport congestion23%
- Security0%
LAS to AUS: common questions
- How often are LAS to AUS flights on time?
- 74% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Las Vegas to Austin cancelled?
- 0.5% of scheduled flights were cancelled (13 of 2,877).
- How long are typical delays?
- Across all flights the average arrival delay was 16 min (early arrivals count as zero). Flights that were late arrived 54 min behind schedule on average, and 7.6% of flights were an hour or more late.
- How long is taxi time at LAS?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: AUS to LAS — 73% on time
More flights from Las Vegas
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: LAS → AUS, nonstop flights by US airlines that report to the DOT. How we calculate this.