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Route Reliability

Greenville → Detroit

GSP–DTW · 508 miles · Greenville–Spartanburg International Airport to Detroit Metropolitan Wayne County Airport

85
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
4 min
Average arrival delay
2.0%
Cancelled
870
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 85% of the time across 870 flights. No comparison to make.

What the data says

Morning flights do better here.

GSP–DTW flights departing between 6–9 AM arrived on time 92% of the time, versus 78% between 6–9 PM.

Tuesday is the weak spot.

GSP–DTW flights arrived on time 95% of the time on Saturdays. On Tuesdays: 80%.

Flights on this route

The breakdown

On-time by weekday
  • Mon82%(124 flights)
  • Tue80%(127 flights)
  • Wed83%(127 flights)
  • Thu88%(124 flights)
  • Fri86%(128 flights)
  • Sat95%(97 flights)
  • Sun83%(125 flights)
On-time by departure window
  • 6–9 AM92%(356 flights)
  • 9 AM–12 PM83%(209 flights)
  • 12–3 PM—(6 flights)
  • 6–9 PM78%(281 flights)
On-time trend by month
83%
May

Jun 83% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%81
July 202582%78
August 202588%82
September 202588%77
October 202596%83
November 202585%71
December 202581%74
January 202679%52
February 202687%53
March 202677%61
April 202688%60
May 202683%80

Keep nerding

Based on 870 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.