Salt Lake City International in January 2024

78.7%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 January 2024, reporting carriers scheduled 9,459 domestic departures from Salt Lake City International (SLC). 78.7% left less than 15 minutes late and 76.0% reached their destination on time; 1.1% were cancelled.

Nationally that month, 74.0% of flights departed on time and 72.9% arrived on time, so SLC departures were 4.7 points above the national departure figure.

Flights arriving at SLC that month were on time 78.8% of the time (9,455 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 44%, late-arriving aircraft 22% and extreme weather 19%.

On time 76.0%
Arrived 15+ minutes late 22.6%
Cancelled 1.1%
Diverted 0.3%

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

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

Measure	Jan 2024	Year earlier	SLC, 12 months to Jul 2026	All reported flights, Jan 2024
Departed on time	78.7%	—	84.0%	74.0%
Arrived on time	76.0%	—	83.8%	72.9%
Cancelled	1.1%	—	0.8%	3.7%
Average departure delay (late minutes only)	17.0 min	—	11.0 min	18.7 min
Scheduled departures a day	315	—	323	18,242
Scheduled departures	9,459	—	117,896	547,271

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
DL Delta Air Lines	4,205	44%	77.3%	7.7 min	0.3%
OO SkyWest Airlines	2,756	29%	78.4%	8.7 min	1.4%
WN Southwest Airlines	1,038	11%	71.4%	7.0 min	1.3%
AA American Airlines	422	4%	65.6%	30.8 min	1.2%
UA United Airlines	415	4%	74.7%	8.6 min	4.3%
B6 JetBlue Airways	194	2%	62.4%	22.9 min	0.0%
F9 Frontier Airlines	188	2%	79.3%	1.1 min	0.5%
NK Spirit Airlines	131	1%	90.1%	-7.5 min	0.8%
AS Alaska Airlines	103	1%	54.4%	21.6 min	13.6%
MQ Envoy Air	7	0%	85.7%	28.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SLC–DEN	Salt Lake City to Denver	665	76.8%	6.0 min	1.2%
SLC–PHX	Salt Lake City to Phoenix	502	77.9%	9.6 min	0.4%
SLC–LAX	Salt Lake City to Los Angeles	465	84.5%	-3.1 min	0.2%
SLC–LAS	Salt Lake City to Las Vegas	393	74.3%	8.6 min	0.5%
SLC–DFW	Salt Lake City to Dallas/Fort Worth	335	66.0%	23.5 min	1.8%
SLC–SFO	Salt Lake City to San Francisco	290	70.7%	15.6 min	0.3%
SLC–SEA	Salt Lake City to Seattle	286	69.2%	7.8 min	4.9%
SLC–ATL	Salt Lake City to Atlanta	260	80.4%	3.1 min	0.0%
SLC–ORD	Salt Lake City to Chicago	241	71.4%	19.2 min	5.8%
SLC–SAN	Salt Lake City to San Diego	222	78.8%	3.7 min	0.0%
SLC–JFK	Salt Lake City to New York	193	69.9%	10.3 min	0.0%
SLC–MCO	Salt Lake City to Orlando	191	75.9%	3.3 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), January 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2024	Minutes
Air carrier	44.0%	32.6%	67,770
Late-arriving aircraft	22.2%	39.0%	34,281
National Aviation System	15.2%	17.9%	23,407
Extreme weather	18.6%	10.3%	28,598
Security	0.1%	0.2%	98

154,154 delay minutes on 2,136 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 January 2024?

78.7% of 9,459 scheduled domestic departures left less than 15 minutes late, and 76.0% reached their destination on time. The national figures that month were 74.0% and 72.9%.

How does that compare with a year earlier?

January 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 January 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.