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Route · AUS → SLC · 2020–2025 BTS data

Austin to Salt Lake City

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), AUS to SLC (Austin to Salt Lake City) ranks #1365 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

83.8%
On-time
+4.8 pts
vs US avg
82 min
Delay when late
8,877
Flights
#1365 of 4927
Corpus placement

Cancelled

0.4%

Best Month

Feb 2024 91%

Worst Month

May 2024 73%

Distance

1,086 mi

Carriers

12

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 140 21 0 0 DL,WN,OO
Nov 2025 134 19 0 0 OO,DL,WN
Oct 2025 152 28 0 0 OO,WN,DL
Sep 2025 135 12 0 0 WN,OO,DL
Aug 2025 142 20 0 0 OO,WN,DL
Jul 2025 169 38 1 0 DL,OO,WN
Jun 2025 160 36 0 0 OO,WN,DL
May 2025 141 38 0 1 OO,WN,DL
Apr 2025 138 22 0 1 DL,OO,WN
Mar 2025 151 25 0 1 OO,WN,DL
Feb 2025 123 22 0 0 WN,DL
Jan 2025 127 11 3 0 WN,DL
Dec 2024 149 36 0 0 DL,WN
Nov 2024 144 21 0 0 WN,DL
Oct 2024 157 17 0 0 WN,DL
Sep 2024 145 14 0 0 WN,DL
Aug 2024 152 17 0 1 DL,WN
Jul 2024 166 40 6 1 DL,WN
Jun 2024 164 35 0 1 DL,OO,WN
May 2024 152 41 0 1 DL,OO,WN
Apr 2024 131 21 0 0 DL,OO,WN
Mar 2024 129 22 0 0 DL,WN
Feb 2024 128 11 0 0 DL,WN
Jan 2024 136 31 3 0 DL,WN

AUS–SLC seasonal on-time pattern

Best: September (88.0%) · weakest: June (79.3%)

78%80%82%84%86%88%90% JanFebMarAprMayJunJulAugSepOctNovDec 80.2%

Strongest calendar month

September

88.0% on-time · ~126 flights/mo

Busiest calendar month

July

~141 flights/mo avg

Weakest calendar month

June

79.3% on-time · ~127 flights/mo

Cancellation Rate

0.4%

13 of 3,465 flights

Diversion Rate

0.2%

7 of 3,465 flights

Explore origin & destination

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

AUS - Austin

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

AUS on-time profile

SLC - Salt Lake City

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

SLC on-time profile

Compare the two airports

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

Compare AUS vs SLC

Origin-hub reliability standing

Mid-pack among AUS departures

From AUS, this corridor sits with 45 other 75–85% on-time routes out of 55 tracked departures, not the hub's reliability leaders (3 at ≥85%) and not the softest ( 7 below 75%). Destination: Salt Lake City · fleet on-time rank #1640 of 4927.

What the Data Says About AUS to SLC

Bureau of Transportation Statistics records show Austin to Salt Lake City (AUS to SLC) running a 83.8% on-time rate over 8,877 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 82.2 minutes. The 1,086-mile corridor is served by 12 carriers, and over the last 24 months 0.4% of 3,465 flights were cancelled, 0.2% diverted.

The monthly split is wide on this route: Feb 2024 posted the strongest performance at 91% on-time, while May 2024 came in at just 73% - a 18-point swing worth factoring into travel timing.

On the multi-year calendar, AUS–SLC peaks in September at 88.0% on-time while July carries the heaviest traffic (~141 flights per month) ; the softest month is June at 79.3%, a 8.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does AUS to SLC rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, AUS to SLC ranks #1365 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 AUS to SLC? ▼
Flights from Austin to Salt Lake City have a 83.8% on-time rate based on 8,877 flights. The average delay is 82.2 minutes. The best recent month was Feb 2024 with 91% on-time.
What is the cancellation rate for AUS to SLC? ▼
Over the last 24 months, 0.4% of flights on this route were cancelled (13 of 3,465 flights) and 0.2% were diverted.
How far is the flight from AUS to SLC? ▼
The flight distance from Austin (AUS) to Salt Lake City (SLC) is approximately 1,086 miles. This route is served by 12 carriers.
When is the best time to fly from AUS to SLC? ▼
The best recent month for on-time performance was Feb 2024 (91% on-time). The worst was May 2024 (73% on-time). Consider booking during months with historically better performance.

Airports on this route

AUS Airport

Austin
SLC Airport

Salt Lake City
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 AUS–SLC data

AUS–SLC runs 4.8 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare AUS and SLC airport profiles: delay causes and top routes differ even on the same corridor. AUS airport
  • If your dates flex, September (88.0% on-time) beats June (79.3%) on this corridor. Seasonal chart
  • 4 other routes post a similar 83.8% 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.