Salt Lake City International in August 2024

80.0%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 August 2024, reporting carriers scheduled 9,799 domestic departures from Salt Lake City International (SLC). 80.0% left less than 15 minutes late and 79.1% reached their destination on time; 0.6% were cancelled.

Nationally that month, 75.4% of flights departed on time and 74.7% arrived on time, so SLC departures were 4.6 points above the national departure figure.

A year earlier, in August 2023, the airport had 9,621 departures with 82.6% leaving on time: a change of −2.6 points, with flights up 2%.

Flights arriving at SLC that month were on time 81.9% of the time (9,806 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 52%, late-arriving aircraft 28% and national aviation system 15%.

On time 79.1%
Arrived 15+ minutes late 20.0%
Cancelled 0.6%
Diverted 0.3%

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

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

Measure	Aug 2024	Aug 2023	SLC, 12 months to Jul 2026	All reported flights, Aug 2024
Departed on time	80.0%	82.6%	84.0%	75.4%
Arrived on time	79.1%	83.2%	83.8%	74.7%
Cancelled	0.6%	0.6%	0.8%	2.1%
Average departure delay (late minutes only)	15.5 min	12.7 min	11.0 min	18.4 min
Scheduled departures a day	327	321	323	20,634
Scheduled departures	9,799	9,621	117,896	619,025

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
DL Delta Air Lines	4,748	48%	78.1%	8.6 min	0.4%
OO SkyWest Airlines	2,712	28%	86.5%	1.6 min	0.1%
WN Southwest Airlines	998	10%	77.8%	6.7 min	0.2%
UA United Airlines	325	3%	71.1%	10.8 min	1.8%
F9 Frontier Airlines	321	3%	68.5%	17.1 min	3.4%
AA American Airlines	281	3%	70.1%	29.0 min	1.8%
NK Spirit Airlines	166	2%	62.7%	36.8 min	3.6%
AS Alaska Airlines	123	1%	69.1%	5.2 min	2.4%
B6 JetBlue Airways	93	1%	60.2%	41.8 min	1.1%
HA Hawaiian Airlines	31	0%	100.0%	-6.7 min	0.0%
MQ Envoy Air	1	0%	100.0%	-12.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SLC–DEN	Salt Lake City to Denver	695	70.8%	14.3 min	0.9%
SLC–PHX	Salt Lake City to Phoenix	480	81.5%	6.4 min	0.4%
SLC–LAS	Salt Lake City to Las Vegas	389	71.5%	13.7 min	0.5%
SLC–SEA	Salt Lake City to Seattle	383	71.0%	6.0 min	0.5%
SLC–DFW	Salt Lake City to Dallas/Fort Worth	351	73.5%	17.6 min	0.3%
SLC–LAX	Salt Lake City to Los Angeles	335	77.3%	8.3 min	0.6%
SLC–SFO	Salt Lake City to San Francisco	289	73.4%	12.3 min	0.7%
SLC–ATL	Salt Lake City to Atlanta	248	84.7%	-0.2 min	0.0%
SLC–ORD	Salt Lake City to Chicago	242	76.0%	19.2 min	0.4%
SLC–SAN	Salt Lake City to San Diego	240	74.6%	12.3 min	1.3%
SLC–PDX	Salt Lake City to Portland	205	85.4%	3.4 min	0.0%
SLC–OAK	Salt Lake City to Oakland	175	84.6%	14.7 min	0.0%

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), August 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2024	Minutes
Air carrier	51.7%	33.8%	71,722
Late-arriving aircraft	28.4%	39.8%	39,459
National Aviation System	15.3%	20.4%	21,176
Extreme weather	4.7%	5.9%	6,476
Security	0.0%	0.1%	0

138,833 delay minutes on 1,959 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left SLC on time in August 2024?

80.0% of 9,799 scheduled domestic departures left less than 15 minutes late, and 79.1% reached their destination on time. The national figures that month were 75.4% and 74.7%.

How does that compare with a year earlier?

In August 2023, 82.6% of 9,621 departures left on time and 0.6% were cancelled, against 80.0% and 0.6% in August 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 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.