Friedman Memorial in January 2025

83.4%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 2025, reporting carriers scheduled 277 domestic departures from Friedman Memorial (SUN). 83.4% left less than 15 minutes late and 83.8% reached their destination on time; 1.8% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so SUN departures were 4.1 points above the national departure figure.

A year earlier, in January 2024, the airport had 264 departures with 79.9% leaving on time: a change of +3.5 points, with flights up 5%.

Flights arriving at SUN that month were on time 83.5% of the time (279 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, extreme weather 43%, air carrier 36% and late-arriving aircraft 12%.

On time 83.8%
Arrived 15+ minutes late 14.1%
Cancelled 1.8%
Diverted 0.4%

Every scheduled departure from SUN in January 2025, judged by arrival at the destination.

January 2025 against a year earlier, the airport's year and the nation

Measure	Jan 2025	Jan 2024	SUN, 12 months to Jul 2026	All reported flights, Jan 2025
Departed on time	83.4%	79.9%	84.7%	79.3%
Arrived on time	83.8%	77.7%	83.0%	78.6%
Cancelled	1.8%	1.9%	1.1%	3.0%
Average departure delay (late minutes only)	18.1 min	35.0 min	16.2 min	14.0 min
Scheduled departures a day	9	9	8	17,992
Scheduled departures	277	264	2,745	539,747

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	277	100%	83.8%	-0.5 min	1.8%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SUN–SLC	Sun Valley/Hailey/Ketchum to Salt Lake City	92	91.3%	4.4 min	2.2%
SUN–DEN	Sun Valley/Hailey/Ketchum to Denver	62	80.6%	3.8 min	1.6%
SUN–LAX	Sun Valley/Hailey/Ketchum to Los Angeles	46	82.6%	-11.7 min	2.2%
SUN–SFO	Sun Valley/Hailey/Ketchum to San Francisco	42	71.4%	-9.0 min	2.4%
SUN–ORD	Sun Valley/Hailey/Ketchum to Chicago	31	83.9%	4.1 min	0.0%
SUN–SEA	Sun Valley/Hailey/Ketchum to Seattle	4	100.0%	-0.2 min	0.0%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), January 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2025	Minutes
Air carrier	36.2%	36.2%	1,608
Late-arriving aircraft	12.3%	34.7%	545
National Aviation System	9.0%	19.9%	399
Extreme weather	42.6%	9.1%	1,896
Security	0.0%	0.2%	0

4,448 delay minutes on 39 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 January 2025?

83.4% of 277 scheduled domestic departures left less than 15 minutes late, and 83.8% reached their destination on time. The national figures that month were 79.3% and 78.6%.

How does that compare with a year earlier?

In January 2024, 79.9% of 264 departures left on time and 1.9% were cancelled, against 83.4% and 1.8% in January 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 2025; 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.