Historical on-time performance
Chicago to Greensboro
590 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–GSO arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.7%of scheduled flights
based on 1,018 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.
- SkyWest AirlinesOn-time77%Medianon timep9045 minCancel1.9%Flights320
- Envoy AirOn-time80%Medianon timep9040 minCancel1.6%Flights698
Why flights run late
Delay causes
- Airline22%
- Weather8%
- Air traffic (NAS)24%
- Late aircraft46%
- 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 → GSO
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 78% to 83% on time.
- Mornings83% on time · p90 25 min · 501 flights
- Middays82% on time · p90 30 min · 790 flights
- Evenings78% on time · p90 40 min · 1,681 flights
- Afternoons78% on time · p90 35 min · 401 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 84% on time.
- Tuesdays84% on time · p90 30 min · 442 flights
- Saturdays82% on time · p90 30 min · 463 flights
- Fridays80% on time · p90 35 min · 501 flights
- Mondays79% on time · p90 35 min · 507 flights
- Thursdays79% on time · p90 35 min · 502 flights
- Wednesdays79% on time · p90 40 min · 477 flights
- Sundays75% on time · p90 45 min · 515 flights
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