AUS to SLC flight delays & on-time performance
Nonstop flights from Austin Bergstrom International Airport to Salt Lake City International Airport · 1,086 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at AUS or SLC right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Austin (AUS) to Salt Lake City (SLC) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.7% were cancelled, and 6% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (87% on time); Southwest Airlines was the least (69%).
- Departures scheduled around 8am did best (93% on time); around 5pm did worst (68%).
- Sunday was the most reliable day to fly (86% on time) and Thursday the least (78%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (47%).
Which airline is most on time from AUS to SLC?
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 |
|---|---|---|---|---|---|
| Delta Air Lines | 87% | 0.8% | 13 min | 5.3% | 1,073 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 86% | 1.2% | 11 min | 4.6% | 241 |
| Southwest Airlines | 69% | 0.2% | 20 min | 9.8% | 471 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am91%74 flights
- 6am89%65 flights
- 7am89%48 flights
- 8am93%361 flights
- 9am81%47 flights
- 11am93%69 flights
- 12pm81%289 flights
- 1pm68%38 flights
- 2pm80%139 flights
- 4pm74%131 flights
- 5pm68%63 flights
- 6pm87%185 flights
- 7pm69%223 flights
- 8pm52%25 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday82%1.1% cancelled
- Tuesday86%0.0% cancelled
- Wednesday80%0.0% cancelled
- Thursday78%0.7% cancelled
- Friday82%0.4% cancelled
- Saturday81%1.0% cancelled
- Sunday86%1.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)47%
- Late-arriving aircraft43%
- Air traffic control & airport congestion7%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)54%
- Extreme weather46%
- Air traffic control & airport congestion0%
- Security0%
AUS to SLC: common questions
- How often are AUS to SLC flights on time?
- 82% 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 Austin to Salt Lake City cancelled?
- 0.7% of scheduled flights were cancelled (13 of 1,785).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 76 min behind schedule on average, and 6.4% of flights were an hour or more late.
- How long is taxi time at AUS?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SLC to AUS — 83% on time
More flights from Austin
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: AUS → SLC, nonstop flights by US airlines that report to the DOT. How we calculate this.