SUN to ORD flight delays & on-time performance
Nonstop flights from Friedman Memorial Airport to Chicago O'Hare International Airport · 1,341 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SUN or ORD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Sun Valley/Hailey/Ketchum (SUN) to Chicago (ORD) arrived on time 60% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 4.6% were cancelled, and 21% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 8am did best (84% on time); around 1pm did worst (49%).
- Wednesday was the most reliable day to fly (73% on time) and Friday the least (32%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (29%).
Which airline is most on time from SUN to ORD?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 60% | 4.6% | 38 min | 21.1% | 281 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am84%62 flights
- 12pm56%110 flights
- 1pm49%108 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday57%0.0% cancelled
- Tuesday71%11.4% cancelled
- Wednesday73%5.1% cancelled
- Thursday65%8.1% cancelled
- Friday32%2.6% cancelled
- Saturday58%0.0% cancelled
- Sunday66%6.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)29%
- Late-arriving aircraft25%
- Extreme weather25%
- Air traffic control & airport congestion22%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather92%
- Airline (crew, maintenance, cleaning, fueling)8%
- Air traffic control & airport congestion0%
- Security0%
SUN to ORD: common questions
- How often are SUN to ORD flights on time?
- 60% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Sun Valley/Hailey/Ketchum to Chicago cancelled?
- 4.6% of scheduled flights were cancelled (13 of 281).
- How long are typical delays?
- Across all flights the average arrival delay was 38 min (early arrivals count as zero). Flights that were late arrived 93 min behind schedule on average, and 21.1% of flights were an hour or more late.
- How long is taxi time at SUN?
- Flights on this route spent 22 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ORD to SUN — 61% on time
More flights from Sun Valley/Hailey/Ketchum
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SUN → ORD, nonstop flights by US airlines that report to the DOT. How we calculate this.