Salt Lake City International in June 2026

81.3%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 June 2026, reporting carriers scheduled 10,084 domestic departures from Salt Lake City International (SLC). 81.3% left less than 15 minutes late and 82.7% reached their destination on time; 0.5% were cancelled.

Nationally that month, 72.2% of flights departed on time and 72.8% arrived on time, so SLC departures were 9.1 points above the national departure figure.

A year earlier, in June 2025, the airport had 9,995 departures with 80.9% leaving on time: a change of +0.4 points, with flights up 1%.

Flights arriving at SLC that month were on time 82.1% of the time (10,080 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 44%, late-arriving aircraft 32% and national aviation system 21%.

On time 82.7%
Arrived 15+ minutes late 16.6%
Cancelled 0.5%
Diverted 0.3%

Every scheduled departure from SLC in June 2026, judged by arrival at the destination.

June 2026 against a year earlier, the airport's year and the nation

Measure	Jun 2026	Jun 2025	SLC, 12 months to Jul 2026	All reported flights, Jun 2026
Departed on time	81.3%	80.9%	84.0%	72.2%
Arrived on time	82.7%	80.5%	83.8%	72.8%
Cancelled	0.5%	0.5%	0.8%	1.6%
Average departure delay (late minutes only)	12.6 min	13.2 min	11.0 min	20.6 min
Scheduled departures a day	336	333	323	20,253
Scheduled departures	10,084	9,995	117,896	607,577

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
DL Delta Air Lines	4,670	46%	81.5%	1.9 min	0.4%
OO SkyWest Airlines	3,189	32%	91.5%	-3.6 min	0.0%
WN Southwest Airlines	926	9%	69.5%	11.5 min	0.0%
UA United Airlines	405	4%	74.1%	10.8 min	1.5%
AA American Airlines	404	4%	71.8%	16.2 min	4.0%
F9 Frontier Airlines	276	3%	78.6%	4.7 min	1.4%
AS Alaska Airlines	155	2%	76.8%	8.4 min	0.0%
B6 JetBlue Airways	50	0%	74.0%	2.0 min	2.0%
MQ Envoy Air	9	0%	77.8%	-1.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SLC–DEN	Salt Lake City to Denver	658	78.3%	6.2 min	0.2%
SLC–PHX	Salt Lake City to Phoenix	435	78.4%	7.0 min	0.5%
SLC–SEA	Salt Lake City to Seattle	358	76.8%	11.5 min	0.0%
SLC–LAX	Salt Lake City to Los Angeles	327	86.5%	-3.3 min	0.0%
SLC–DFW	Salt Lake City to Dallas/Fort Worth	326	72.1%	10.6 min	3.7%
SLC–LAS	Salt Lake City to Las Vegas	293	71.7%	11.2 min	0.0%
SLC–ORD	Salt Lake City to Chicago	291	72.9%	13.4 min	2.4%
SLC–SFO	Salt Lake City to San Francisco	291	41.9%	37.9 min	1.0%
SLC–SAN	Salt Lake City to San Diego	254	75.6%	7.8 min	1.2%
SLC–ATL	Salt Lake City to Atlanta	242	88.4%	-7.9 min	0.4%
SLC–PDX	Salt Lake City to Portland	215	85.6%	0.4 min	0.9%
SLC–SMF	Salt Lake City to Sacramento	199	81.9%	3.6 min	0.5%

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), June 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2026	Minutes
Air carrier	44.4%	30.8%	47,646
Late-arriving aircraft	32.2%	42.1%	34,567
National Aviation System	20.7%	20.3%	22,213
Extreme weather	2.7%	6.7%	2,919
Security	0.0%	0.1%	0

107,345 delay minutes on 1,671 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 June 2026?

81.3% of 10,084 scheduled domestic departures left less than 15 minutes late, and 82.7% reached their destination on time. The national figures that month were 72.2% and 72.8%.

How does that compare with a year earlier?

In June 2025, 80.9% of 9,995 departures left on time and 0.5% were cancelled, against 81.3% and 0.5% in June 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for June 2026; 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.