Best Time to Fly SUN to LAX: On-Time Stats by Hour & Airline
Friedman Memorial → Los Angeles International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 90.2% of Sun Valley/Hailey/Ketchum (SUN) to Los Angeles (LAX) flights arrived on time (328 scheduled flights). That is 12.6 points above the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (98% on time) and December the worst month (85%).
The cancellation rate was 0.3% (US average 1.8%).
SUN to LAX on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 90.2% | 92 min | 0.3% | 328 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SUN to LAX
On-time arrival % by scheduled departure hour (local time), 617 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 29 | |
| 8am–9am | 84.8% | 0.8% | 119 |
| 12pm–1pm | 90.4% | 0.0% | 115 |
| 1pm–2pm | 92.8% | 0.0% | 153 |
| 2pm–3pm | 86.7% | 0.0% | 30 |
| 3pm–4pm | Limited data | 20 | |
| 4pm–5pm | 90.0% | 2.3% | 133 |
| 5pm–6pm | Limited data | 11 | |
| 6pm–7pm | Limited data | 7 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SUN to LAX
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Christmas & New Year (Dec 20 - Jan 3) | 76.7% | -13.8 pts | 1.6% | 61 |
| Summer peak (Jun 15 - Aug 15) | 90.9% | +0.4 pts | 0.0% | 175 |
| All other days | 90.5% | — | 1.1% | 381 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).