Historical on-time performance
Chicago to Greensboro
589 miData through May 2026Source: US DOT · BTS
Flights on ORD–GSO arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled2.5%of scheduled flights
based on 1,494 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysOn-time82%Medianon timep9030 minCancel2.0%Flights51
- Envoy AirbestOn-time79%Medianon timep9040 minCancel2.0%Flights843
- SkyWest AirlinesOn-time71%Medianon timep9055 minCancel3.2%Flights600
Why flights run late
Delay causes
- Airline24%
- Weather10%
- Air traffic (NAS)22%
- Late aircraft43%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather73%
- Air traffic (NAS)27%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 37 cancellations with a reported cause (BTS reports causes from June 2003).
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 (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 86% on time.
- Mornings86% on time · p90 25 min · 520 flights
- Middays81% on time · p90 30 min · 922 flights
- Afternoons76% on time · p90 40 min · 538 flights
- Evenings75% on time · p90 45 min · 1,821 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 81% on time.
- Tuesdays81% on time · p90 35 min · 502 flights
- Saturdays80% on time · p90 35 min · 519 flights
- Fridays79% on time · p90 40 min · 568 flights
- Thursdays78% on time · p90 40 min · 570 flights
- Mondays77% on time · p90 40 min · 574 flights
- Wednesdays77% on time · p90 40 min · 536 flights
- Sundays74% on time · p90 50 min · 585 flights
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