Friedman Memorial in August 2024

83.1%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 195 domestic departures from Friedman Memorial (SUN). 83.1% left less than 15 minutes late and 82.6% reached their destination on time; 0.0% were cancelled.

Nationally that month, 75.4% of flights departed on time and 74.7% arrived on time, so SUN departures were 7.7 points above the national departure figure.

A year earlier, in August 2023, the airport had 163 departures with 87.7% leaving on time: a change of −4.6 points, with flights up 20%.

Flights arriving at SUN that month were on time 83.1% of the time (195 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 63%, extreme weather 25% and national aviation system 8%.

On time 82.6%
Arrived 15+ minutes late 16.9%
Cancelled 0.0%
Diverted 0.5%

Every scheduled departure from SUN 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	SUN, 12 months to Jul 2026	All reported flights, Aug 2024
Departed on time	83.1%	87.7%	84.7%	75.4%
Arrived on time	82.6%	85.3%	83.0%	74.7%
Cancelled	0.0%	1.2%	1.1%	2.1%
Average departure delay (late minutes only)	25.7 min	13.9 min	16.2 min	18.4 min
Scheduled departures a day	7	5	8	20,634
Scheduled departures	195	163	2,745	619,025

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	195	100%	82.6%	14.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SUN–DEN	Sun Valley/Hailey/Ketchum to Denver	62	88.7%	7.9 min	0.0%
SUN–SLC	Sun Valley/Hailey/Ketchum to Salt Lake City	62	88.7%	9.1 min	0.0%
SUN–LAX	Sun Valley/Hailey/Ketchum to Los Angeles	31	87.1%	15.0 min	0.0%
SUN–SFO	Sun Valley/Hailey/Ketchum to San Francisco	31	58.1%	40.6 min	0.0%
SUN–ORD	Sun Valley/Hailey/Ketchum to Chicago	9	66.7%	4.1 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	63.1%	33.8%	2,954
Late-arriving aircraft	4.4%	39.8%	206
National Aviation System	7.6%	20.4%	354
Extreme weather	25.0%	5.9%	1,170
Security	0.0%	0.1%	0

4,684 delay minutes on 33 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 SUN on time in August 2024?

83.1% of 195 scheduled domestic departures left less than 15 minutes late, and 82.6% 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, 87.7% of 163 departures left on time and 1.2% were cancelled, against 83.1% and 0.0% 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 SUN · methodology · corrections.