Salt Lake City International in March 2024

83.3%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 March 2024, reporting carriers scheduled 9,721 domestic departures from Salt Lake City International (SLC). 83.3% left less than 15 minutes late and 81.7% reached their destination on time; 0.4% were cancelled.

Nationally that month, 78.5% of flights departed on time and 78.3% arrived on time, so SLC departures were 4.8 points above the national departure figure.

Flights arriving at SLC that month were on time 84.2% of the time (9,720 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 39%, late-arriving aircraft 31% and national aviation system 23%.

On time 81.7%
Arrived 15+ minutes late 17.7%
Cancelled 0.4%
Diverted 0.2%

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

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

Measure	Mar 2024	Year earlier	SLC, 12 months to Jul 2026	All reported flights, Mar 2024
Departed on time	83.3%	—	84.0%	78.5%
Arrived on time	81.7%	—	83.8%	78.3%
Cancelled	0.4%	—	0.8%	0.9%
Average departure delay (late minutes only)	12.5 min	—	11.0 min	15.7 min
Scheduled departures a day	324	—	323	19,726
Scheduled departures	9,721	—	117,896	591,767

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
DL Delta Air Lines	4,478	46%	81.2%	3.5 min	0.0%
OO SkyWest Airlines	2,707	28%	88.8%	-3.2 min	0.5%
WN Southwest Airlines	1,075	11%	74.5%	7.6 min	0.6%
UA United Airlines	457	5%	76.8%	10.0 min	0.7%
AA American Airlines	364	4%	75.0%	22.6 min	0.8%
F9 Frontier Airlines	217	2%	69.1%	32.7 min	3.2%
B6 JetBlue Airways	216	2%	75.0%	19.5 min	1.9%
NK Spirit Airlines	105	1%	75.2%	0.1 min	2.9%
AS Alaska Airlines	102	1%	80.4%	3.3 min	1.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SLC–DEN	Salt Lake City to Denver	726	79.3%	4.9 min	1.8%
SLC–PHX	Salt Lake City to Phoenix	522	78.9%	8.1 min	0.6%
SLC–LAX	Salt Lake City to Los Angeles	464	84.1%	4.1 min	0.0%
SLC–LAS	Salt Lake City to Las Vegas	394	62.9%	21.4 min	1.3%
SLC–DFW	Salt Lake City to Dallas/Fort Worth	336	76.8%	20.6 min	0.9%
SLC–SEA	Salt Lake City to Seattle	275	85.8%	-2.0 min	0.4%
SLC–SFO	Salt Lake City to San Francisco	274	49.6%	25.5 min	0.4%
SLC–ATL	Salt Lake City to Atlanta	261	81.6%	0.2 min	0.0%
SLC–ORD	Salt Lake City to Chicago	258	83.7%	7.4 min	0.0%
SLC–SAN	Salt Lake City to San Diego	232	76.7%	6.4 min	0.4%
SLC–IAH	Salt Lake City to Houston	210	81.4%	0.6 min	0.5%
SLC–PDX	Salt Lake City to Portland	192	84.4%	-0.2 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), March 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2024	Minutes
Air carrier	38.9%	32.1%	44,389
Late-arriving aircraft	30.7%	42.1%	35,080
National Aviation System	23.0%	21.4%	26,298
Extreme weather	7.3%	4.2%	8,367
Security	0.0%	0.2%	0

114,134 delay minutes on 1,721 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 March 2024?

83.3% of 9,721 scheduled domestic departures left less than 15 minutes late, and 81.7% reached their destination on time. The national figures that month were 78.5% and 78.3%.

How does that compare with a year earlier?

March 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 March 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.