Sun Valley/Hailey/Ketchum (SUN) to San Francisco (SFO): On-Time Performance
Data through July 2026
Sun Valley/Hailey/Ketchum (SUN) to San Francisco (SFO) is a thinner route than most in this dataset — 293 departures over the past year, roughly 6 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 63% arrived on time, noticeably below the national average of 78%.
- On-time
- 63%
- arrived <15 min late
- Avg delay
- 30 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 0.80
- last 12 months
- Duration
- 2h 20m
- scheduled
- Distance
- 587 mi
Monthly on-time trend
Best time to fly from SUN to SFO
Aim for departures around 4 p.m. (93% on-time); avoid 7 a.m. departures (27%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 59% | 24 min |
| Tuesdaybest | 71% | 25 min |
| Wednesday | 65% | 24 min |
| Thursday | 57% | 39 min |
| Friday | 63% | 34 min |
| Saturday | 68% | 24 min |
| Sunday | 55% | 36 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft7%
- Airline operations36%
- National airspace system55%
- Weather2%
Frequently asked questions
- How often are flights from SUN to SFO delayed?
- 37% of SUN–SFO flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 30 minutes.
- What is the best time of day to fly from SUN to SFO?
- Departures around 4 p.m. have the best record (93% on-time), while departures around 7 a.m. have the worst (27%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SUN to SFO?
- The scheduled SUN–SFO flight time averages 2h 20m over 587 miles. Actual arrival times vary — flights on this route land 15+ minutes late 37% of the time.
- How often are SUN to SFO flights cancelled?
- 0.5% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from SUN to SFO?
- June 2026 was the roughest month in this dataset, with only 3% of arrivals on time. The best was March 2026 at 93%. If your dates are flexible, that 89-point gap is worth planning around.
Explore related pages
More routes from SUN
Other ways to fly to San Francisco (SFO)
Related guides
Based on 578 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.