Friedman Memorial in April 2026

84.1%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 April 2026, reporting carriers scheduled 157 domestic departures from Friedman Memorial (SUN). 84.1% left less than 15 minutes late and 85.4% reached their destination on time; 1.3% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so SUN departures were 5.0 points above the national departure figure.

A year earlier, in April 2025, the airport had 122 departures with 96.7% leaving on time: a change of −12.6 points, with flights up 29%.

Flights arriving at SUN that month were on time 80.6% of the time (155 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, extreme weather 47%, air carrier 34% and late-arriving aircraft 9%.

On time 85.4%
Arrived 15+ minutes late 13.4%
Cancelled 1.3%
Diverted 0.0%

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

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

Measure	Apr 2026	Apr 2025	SUN, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	84.1%	96.7%	84.7%	79.1%
Arrived on time	85.4%	93.4%	83.0%	78.9%
Cancelled	1.3%	0.0%	1.1%	0.9%
Average departure delay (late minutes only)	19.7 min	5.8 min	16.2 min	14.5 min
Scheduled departures a day	5	4	8	19,931
Scheduled departures	157	122	2,745	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	157	100%	85.4%	3.1 min	1.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SUN–SLC	Sun Valley/Hailey/Ketchum to Salt Lake City	90	90.0%	-4.1 min	1.1%
SUN–DEN	Sun Valley/Hailey/Ketchum to Denver	36	88.9%	-2.7 min	0.0%
SUN–ORD	Sun Valley/Hailey/Ketchum to Chicago	11	45.5%	35.0 min	9.1%
SUN–LAX	Sun Valley/Hailey/Ketchum to Los Angeles	7	100.0%	-22.4 min	0.0%
SUN–SFO	Sun Valley/Hailey/Ketchum to San Francisco	7	71.4%	2.4 min	0.0%
SUN–PHX	Sun Valley/Hailey/Ketchum to Phoenix	6	66.7%	123.0 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), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	34.0%	33.5%	966
Late-arriving aircraft	9.3%	40.4%	265
National Aviation System	9.3%	21.0%	263
Extreme weather	47.4%	5.0%	1,349
Security	0.0%	0.1%	0

2,843 delay minutes on 21 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 April 2026?

84.1% of 157 scheduled domestic departures left less than 15 minutes late, and 85.4% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 96.7% of 122 departures left on time and 0.0% were cancelled, against 84.1% and 1.3% in April 2026.

Provenance

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