SkyWest Airlines ORD to GSP on-time performance
SkyWest Airlines nonstop flights from Chicago to Greer · Aug 2025 – Jul 2026Regional airline operating flights for United Express, Delta Connection, American Eagle and Alaska.
On-time arrivals
70%
arrived < 15 min late
Cancelled
3.4%
20 flights
Avg arrival delay
22 min
69 min when late
Rank on route
#4 of 6
route average 74% on time
Key facts
- SkyWest Airlines flights on ORD to GSP arrived on time 70% of the time in Aug 2025 – Jul 2026.
- 3.4% were cancelled, and 10% arrived an hour or more late.
- That ranks #4 of 6 airlines on this route, which averaged 74% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (43%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)43%
- Air traffic control & airport congestion23%
- Late-arriving aircraft22%
- Extreme weather12%
- Security0%
Other airlines on ORD to GSP
- Envoy Air78% on time · 16 min avg delay
- Republic Airways82% on time · 14 min avg delay
- PSA Airlines53% on time · 53 min avg delay
- American Airlines59% on time · 23 min avg delay
- United Airlines100% on time · 0 min avg delay
Full ORD to GSP comparison →
SkyWest Airlines on-time record across all routes →
594 SkyWest Airlines flights tracked on this route; 20 cancelled, 1 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.