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Route · SLC → AUS · 2020–2025 BTS data

Salt Lake City to Austin

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SLC to AUS (Salt Lake City to Austin) ranks #1363 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

80.1%
On-time
+1.1 pts
vs US avg
65 min
Delay when late
8,885
Flights
#1363 of 4927
Corpus placement

Cancelled

0.3%

Best Month

Sep 2025 88%

Worst Month

Jul 2025 65%

Distance

1,086 mi

Carriers

12

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 140 20 0 0 DL,WN,OO
Nov 2025 134 30 0 0 OO,DL,WN
Oct 2025 153 29 0 2 OO,WN,DL
Sep 2025 133 16 0 0 WN,OO,DL
Aug 2025 142 22 0 0 OO,WN,DL
Jul 2025 169 59 1 1 OO,WN,DL
Jun 2025 160 41 0 0 OO,WN,DL
May 2025 141 49 0 0 OO,WN,DL
Apr 2025 139 39 0 1 DL,OO,WN
Mar 2025 151 21 0 2 OO,WN,DL
Feb 2025 123 23 0 0 WN,DL
Jan 2025 127 21 2 0 WN,DL
Dec 2024 149 34 0 0 DL,WN
Nov 2024 144 22 0 0 WN,DL
Oct 2024 157 19 0 0 WN,DL
Sep 2024 145 25 0 0 WN,DL
Aug 2024 151 29 0 0 DL,WN
Jul 2024 167 51 6 1 DL,WN
Jun 2024 163 47 0 0 DL,OO,WN
May 2024 152 47 0 1 DL,OO,WN
Apr 2024 132 29 0 1 DL,OO,WN
Mar 2024 130 24 0 0 DL,WN
Feb 2024 132 27 0 0 DL,WN
Jan 2024 139 34 1 0 DL,WN

SLC–AUS seasonal on-time pattern

Best: October (86.0%) · weakest: July (72.3%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 79.4%

Strongest calendar month

October

86.0% on-time · ~134 flights/mo

Busiest calendar month

July

~141 flights/mo avg

Weakest calendar month

July

72.3% on-time · ~141 flights/mo

Cancellation Rate

0.3%

10 of 3,473 flights

Diversion Rate

0.3%

9 of 3,473 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

SLC - Salt Lake City

Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.

SLC on-time profile

AUS - Austin

Full on-time, delay-cause, and seasonal performance for Austin, TX.

AUS on-time profile

Compare the two airports

See SLC and AUS side by side on delays, cancellations, and reliability.

Compare SLC vs AUS

Origin-hub reliability standing

Mid-pack among SLC departures

From SLC, this corridor sits with 31 other 75–85% on-time routes out of 85 tracked departures, not the hub's reliability leaders (54 at ≥85%) and not the softest ( 0 below 75%). Destination: Austin · fleet on-time rank #3118 of 4927.

What the Data Says About SLC to AUS

8,885 tracked flights put the SLC to AUS pairing (Salt Lake City to Austin) at a 80.1% on-time rate, squarely in line with the wider network. Delays that do occur run 65.0 minutes on average. Across the 1,086-mile route and its 12 carriers, the trailing 24 months show 0.3% cancelled and 0.3% diverted (3,473 flights sampled).

The monthly split is wide on this route: Sep 2025 posted the strongest performance at 88% on-time, while Jul 2025 came in at just 65% - a 23-point swing worth factoring into travel timing.

On the multi-year calendar, SLC–AUS peaks in October at 86.0% on-time while July carries the heaviest traffic (~141 flights per month) ; the softest month is July at 72.3%, a 13.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SLC to AUS rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SLC to AUS ranks #1363 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from SLC to AUS? ▼
Flights from Salt Lake City to Austin have a 80.1% on-time rate based on 8,885 flights. The average delay is 65.0 minutes. The best recent month was Sep 2025 with 88% on-time.
What is the cancellation rate for SLC to AUS? ▼
Over the last 24 months, 0.3% of flights on this route were cancelled (10 of 3,473 flights) and 0.3% were diverted.
How far is the flight from SLC to AUS? ▼
The flight distance from Salt Lake City (SLC) to Austin (AUS) is approximately 1,086 miles. This route is served by 12 carriers.
When is the best time to fly from SLC to AUS? ▼
The best recent month for on-time performance was Sep 2025 (88% on-time). The worst was Jul 2025 (65% on-time). Consider booking during months with historically better performance.

Airports on this route

SLC Airport

Salt Lake City
AUS Airport

Austin
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using SLC–AUS data

SLC–AUS is mid-pack at 80.1% on-time; month and carrier mix move more than the corridor headline.

  • Compare SLC and AUS airport profiles: delay causes and top routes differ even on the same corridor. SLC airport
  • If your dates flex, October (86.0% on-time) beats July (72.3%) on this corridor. Seasonal chart
  • 4 other routes post a similar 80.1% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.