Historical on-time performance
Detroit to Greenville
508 miData through Dec 2025Source: US DOT · BTS
Flights on DTW–GSP arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 313 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.
- Delta Air LinesOn-time75%Medianon timep9070 minCancel0.5%Flights185
- SkyWest AirlinesOn-time75%Medianon timep9055 minCancel0.8%Flights128
Why flights run late
Delay causes
- Airline51%
- Weather4%
- Air traffic (NAS)8%
- Late aircraft37%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DTW → 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 77% to 85% on time.
- Middays85% on time · p90 40 min · 333 flights
- Mornings80% on time · p90 45 min · 125 flights · limited
- Evenings80% on time · p90 40 min · 194 flights · limited
- Overnights79% on time · p90 35 min · 533 flights
- Afternoons77% on time · p90 35 min · 510 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 79% to 84% on time.
- Saturdays84% on time · p90 20 min · 167 flights · limited
- Fridays81% on time · p90 30 min · 265 flights
- Wednesdays80% on time · p90 50 min · 239 flights
- Sundays80% on time · p90 40 min · 262 flights
- Tuesdays79% on time · p90 40 min · 233 flights
- Mondays79% on time · p90 45 min · 267 flights
- Thursdays79% on time · p90 35 min · 262 flights
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