Friedman Memorial in January 2026

80.4%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 2026, reporting carriers scheduled 331 domestic departures from Friedman Memorial (SUN). 80.4% left less than 15 minutes late and 80.7% reached their destination on time; 3.0% were cancelled.

Nationally that month, 75.6% of flights departed on time and 75.3% arrived on time, so SUN departures were 4.8 points above the national departure figure.

A year earlier, in January 2025, the airport had 277 departures with 83.4% leaving on time: a change of −3.0 points, with flights up 19%.

Flights arriving at SUN that month were on time 77.5% of the time (333 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, extreme weather 34%, air carrier 27% and national aviation system 24%.

On time 80.7%
Arrived 15+ minutes late 16.3%
Cancelled 3.0%
Diverted 0.0%

Every scheduled departure from SUN in January 2026, judged by arrival at the destination.

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

Measure	Jan 2026	Jan 2025	SUN, 12 months to Jul 2026	All reported flights, Jan 2026
Departed on time	80.4%	83.4%	84.7%	75.6%
Arrived on time	80.7%	83.8%	83.0%	75.3%
Cancelled	3.0%	1.8%	1.1%	4.7%
Average departure delay (late minutes only)	16.7 min	18.1 min	16.2 min	16.7 min
Scheduled departures a day	11	9	8	18,133
Scheduled departures	331	277	2,745	544,003

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	331	100%	80.7%	2.2 min	3.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SUN–SLC	Sun Valley/Hailey/Ketchum to Salt Lake City	92	89.1%	-10.8 min	2.2%
SUN–DEN	Sun Valley/Hailey/Ketchum to Denver	62	91.9%	-11.3 min	0.0%
SUN–ORD	Sun Valley/Hailey/Ketchum to Chicago	62	59.7%	35.9 min	6.5%
SUN–LAX	Sun Valley/Hailey/Ketchum to Los Angeles	45	86.7%	-3.9 min	0.0%
SUN–SFO	Sun Valley/Hailey/Ketchum to San Francisco	42	81.0%	-1.4 min	0.0%
SUN–PHX	Sun Valley/Hailey/Ketchum to Phoenix	23	56.5%	31.7 min	17.4%
SUN–SEA	Sun Valley/Hailey/Ketchum to Seattle	5	100.0%	-11.2 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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2026	Minutes
Air carrier	26.8%	37.3%	1,440
Late-arriving aircraft	14.9%	35.0%	800
National Aviation System	24.2%	18.0%	1,300
Extreme weather	34.2%	9.6%	1,841
Security	0.0%	0.1%	0

5,381 delay minutes on 54 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 2026?

80.4% of 331 scheduled domestic departures left less than 15 minutes late, and 80.7% reached their destination on time. The national figures that month were 75.6% and 75.3%.

How does that compare with a year earlier?

In January 2025, 83.4% of 277 departures left on time and 1.8% were cancelled, against 80.4% and 3.0% in January 2026.

Provenance

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