On-Time Report

Airports › Salt Lake City (SLC) › April 2024

Airport month · April 2024

Salt Lake City International in April 2024

84.9%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In April 2024, reporting carriers scheduled 9,336 domestic departures from Salt Lake City International (SLC). 84.9% left less than 15 minutes late and 84.4% reached their destination on time; 0.2% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.2% arrived on time, so SLC departures were 4.4 points above the national departure figure.

Flights arriving at SLC that month were on time 85.8% of the time (9,328 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 50%, late-arriving aircraft 27% and national aviation system 19%.

Every scheduled departure from SLC in April 2024, judged by arrival at the destination.

April 2024 against a year earlier, the airport's year and the nation

MeasureApr 2024Year earlierSLC, 12 months to Jul 2026All reported flights, Apr 2024
Departed on time84.9%—84.0%80.5%
Arrived on time84.4%—83.8%80.2%
Cancelled0.2%—0.8%0.7%
Average departure delay (late minutes only)10.7 min—11.0 min14.2 min
Scheduled departures a day311—32319,406
Scheduled departures9,336—117,896582,185

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
DL Delta Air Lines4,43648%84.5%0.7 min0.0%
OO SkyWest Airlines2,68429%89.2%-0.2 min0.0%
WN Southwest Airlines1,00011%82.8%1.5 min0.3%
AA American Airlines3033%78.2%6.2 min1.3%
UA United Airlines2833%74.6%7.6 min0.7%
F9 Frontier Airlines2453%60.0%22.4 min1.6%
B6 JetBlue Airways1802%78.9%-2.9 min0.6%
AS Alaska Airlines911%85.7%8.2 min0.0%
NK Spirit Airlines871%82.8%-2.3 min0.0%
MQ Envoy Air270%88.9%3.1 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
SLC–DENSalt Lake City to Denver70577.6%8.6 min0.1%
SLC–PHXSalt Lake City to Phoenix51086.7%0.9 min0.8%
SLC–LAXSalt Lake City to Los Angeles42085.0%-1.0 min0.0%
SLC–LASSalt Lake City to Las Vegas35678.9%6.5 min0.3%
SLC–DFWSalt Lake City to Dallas/Fort Worth33971.7%12.3 min1.5%
SLC–SEASalt Lake City to Seattle30686.9%-0.7 min0.0%
SLC–SFOSalt Lake City to San Francisco28752.6%23.5 min0.0%
SLC–ATLSalt Lake City to Atlanta26186.6%-2.7 min0.0%
SLC–ORDSalt Lake City to Chicago23681.4%0.6 min0.0%
SLC–SANSalt Lake City to San Diego22289.6%-4.0 min0.0%
SLC–PDXSalt Lake City to Portland19589.2%-3.0 min0.0%
SLC–MCOSalt Lake City to Orlando17584.0%2.1 min0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of departures that left less than 15 minutes late, by scheduled hour (local time), April 2024.

Delay causes

BTS cause categoryShare of delay minutesNational, Apr 2024Minutes
Air carrier50.3%33.6%45,955
Late-arriving aircraft26.7%41.0%24,423
National Aviation System19.0%20.0%17,339
Extreme weather3.6%5.1%3,267
Security0.5%0.2%412
91,396 delay minutes on 1,421 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← March 2024May 2024 →

Questions and answers

How many flights left SLC on time in April 2024?

84.9% of 9,336 scheduled domestic departures left less than 15 minutes late, and 84.4% reached their destination on time. The national figures that month were 80.5% and 80.2%.

How does that compare with a year earlier?

April 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for SLC · methodology · corrections.