Historical on-time performance
Chicago to Greenville
577 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–GSP arrive on time 70% of the time over the last 12 months.
On-time rate70%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled3.6%of scheduled flights
based on 1,205 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Republic AirwaysOn-time76%Medianon timep9050 minCancel4.0%Flights324
- SkyWest AirlinesOn-time63%Median5 minp9070 minCancel6.4%Flights140
- United AirlinesOn-time63%Median5 minp9085 minCancel0.0%Flights30
- Envoy AirOn-time74%Medianon timep9050 minCancel2.2%Flights588
- PSA AirlinesOn-time46%Median15 minp90125 minCancel6.5%Flights123
Why flights run late
Delay causes
- Airline25%
- Weather6%
- Air traffic (NAS)20%
- Late aircraft49%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ORD → GSP
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 71% to 82% on time.
- Mornings82% on time · p90 20 min · 810 flights
- Middays79% on time · p90 40 min · 769 flights
- Afternoons77% on time · p90 40 min · 508 flights
- Overnights75% on time · p90 55 min · 119 flights · limited
- Evenings71% on time · p90 70 min · 1,851 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 78% on time.
- Tuesdays78% on time · p90 40 min · 548 flights
- Saturdays78% on time · p90 45 min · 515 flights
- Fridays77% on time · p90 45 min · 607 flights
- Wednesdays76% on time · p90 55 min · 574 flights
- Mondays75% on time · p90 40 min · 628 flights
- Thursdays74% on time · p90 55 min · 604 flights
- Sundays72% on time · p90 60 min · 585 flights
Advertisement
Keep exploring