Friedman Memorial (SUN) Delays and On-Time Departures
Sun Valley/Hailey/Ketchum, ID · ranked 41st of 333 airports for on-time departures
Data through July 2026 · Last updated October 18, 2026
85.7% of the 2,745 flights scheduled to depart Sun Valley/Hailey/Ketchum (SUN) in the last 12 months left on time, 8.3 points above the US average of 77.4%.
That ranks 41st of 333 US airports tracked on this site, with 1.1% of departures cancelled.
November has been the best month (98% on time) and Sunday the weakest day of the week (83%).
Best time of day to fly out of Sun Valley/Hailey/Ketchum (SUN)
On-time departure % by scheduled departure hour (local time), last 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 1 | |
| 7am–8am | 93.9% | 0.7% | 1,344 |
| 8am–9am | 74.2% | 2.1% | 486 |
| 10am–11am | 89.8% | 0.0% | 49 |
| 11am–12pm | Limited data | 5 | |
| 12pm–1pm | 84.5% | 0.1% | 741 |
| 1pm–2pm | 83.3% | 2.3% | 686 |
| 2pm–3pm | 82.1% | 0.5% | 854 |
| 3pm–4pm | 93.1% | 1.0% | 601 |
| 4pm–5pm | 86.8% | 1.6% | 192 |
| 5pm–6pm | Limited data | 11 | |
| 6pm–7pm | 80.7% | 0.0% | 31 |
Airlines at SUN ranked by on-time departures
Last 12 months. Airlines with fewer than 30 departures are marked “limited data”.
| Airline | On-time departures | On-time arrivals | Cancelled | Departures |
|---|---|---|---|---|
| SkyWest Airlines | 85.7% | 84.2% | 1.1% | 2,745 |
80%+ good 70–79.9% fair <70% poor
Best day to fly out of SUN
On-time departures by day, 24 months.
Best month to fly out of SUN
On-time departures by month, 24 months.
Holiday travel at Sun Valley/Hailey/Ketchum (SUN)
On-time departures during holiday periods compared with all other days, last 24 months.
| Period | On-time departures | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 95.5% | +8.1 pts | 2.2% | 45 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.4% | -6.9 pts | 1.8% | 343 |
| Summer peak (Jun 15 - Aug 15) | 85.6% | -1.8 pts | 0.1% | 972 |
| All other days | 87.3% | — | 1.1% | 3,641 |
Monthly on-time departure trend at SUN
On-time departure % each month, with the 12-month US average for reference.
Routes from Sun Valley/Hailey/Ketchum (SUN)
Every route from SUN with its own page, by number of flights (last 12 months, on-time arrivals).
| To | On time | Cancelled | Flights |
|---|---|---|---|
| SUN → Salt Lake City (SLC) | 94.2% | 0.7% | 1,078 |
| SUN → Denver (DEN) | 85.0% | 0.0% | 630 |
| SUN → Los Angeles (LAX) | 90.2% | 0.3% | 328 |
| SUN → San Francisco (SFO) | 62.7% | 0.0% | 293 |
| SUN → Chicago (ORD) | 60.1% | 4.6% | 281 |