Sun Valley/Hailey/Ketchum (SUN) to Chicago (ORD): On-Time Performance
Data through May 2026
Sun Valley/Hailey/Ketchum (SUN) to Chicago (ORD) is a thinner route than most in this dataset — 260 departures over the past year, roughly 5 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 64% arrived on time, noticeably below the national average of 78%. Cancellations are the bigger caveat: 3.3% of scheduled flights never departed.
- On-time
- 64%
- arrived <15 min late
- Avg delay
- 41 min
- completed flights
- Cancelled
- 3.3%
- Flights/day
- 0.71
- last 12 months
- Duration
- 3h 34m
- scheduled
- Distance
- 1,341 mi
Monthly on-time trend
Best time to fly from SUN to ORD
Aim for departures around 8 a.m. (85% on-time); avoid 1 p.m. departures (50%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 62% | 36 min |
| Tuesdaybest | 76% | 19 min |
| Wednesday | 75% | 43 min |
| Thursday | 59% | 38 min |
| Friday | 41% | 73 min |
| Saturday | 64% | 35 min |
| Sunday | 68% | 41 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft23%
- Airline operations40%
- National airspace system17%
- Weather21%
Frequently asked questions
- How often are flights from SUN to ORD delayed?
- 36% of SUN–ORD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 41 minutes.
- What is the best time of day to fly from SUN to ORD?
- Departures around 8 a.m. have the best record (85% on-time), while departures around 1 p.m. have the worst (50%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SUN to ORD?
- The scheduled SUN–ORD flight time averages 3h 34m over 1,341 miles. Actual arrival times vary — flights on this route land 15+ minutes late 36% of the time.
- How often are SUN to ORD flights cancelled?
- 3.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05 — several times the typical US rate, so consider earlier departures or backup options.
- What day of the week is most reliable for SUN to ORD?
- Tuesday flights have the best record at 76% on-time. Day-of-week differences on this route are meaningful — Friday trails at 41%.
Explore related pages
More routes from SUN
Based on 389 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.