Historical on-time performance
Greenville to Houston
Flights on GSP–HOU arrive on time 72% of the time over the last 12 months.
based on 123 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time72%Medianon timep9065 minCancel0.0%Flights123
Why flights run late
Delay causes
- Airline6%
- Weather3%
- Air traffic (NAS)5%
- Late aircraft86%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline57%
- Weather43%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 7 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 GSP → HOU
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 81% to 90% on time.
- Middays90% on time · p90 5 min · 108 flights · limited
- Afternoons86% on time · p90 25 min · 146 flights · limited
- Evenings81% on time · p90 25 min · 109 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 79% to 86% on time.
- Saturdays86% on time · p90 25 min · 107 flights · limited
- Sundays79% on time · p90 35 min · 107 flights · limited
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