BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
DTW→GSP

Detroit, MI (DTW) to Greer, SC (GSP) flight delay odds

73.5% of 600 official scheduled DTW-to-GSP flights arrived on time; 16.2% arrived at least 30 minutes late and 2.3% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
73.5%arrived on time
16.2%30+ min late
2.3%cancelled
600scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.8%all scheduled flights
120+ minutes late5.2%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+13.2 mincompleted flights

Which departure time was most reliable for DTW to GSP?

Among qualifying DTW-to-GSP departure window results, Early morning had the highest on-time rate: 78.5% of 79 flights. Afternoon was lowest at 67.7% across 223 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning7978.5%16.5%0.0%
Afternoon22367.7%17.0%3.1%
Evening26276.0%16.0%2.7%

Which weekday was most reliable for DTW to GSP?

Among qualifying DTW-to-GSP weekday results, Thursday had the highest on-time rate: 84.9% of 86 flights. Sunday was lowest at 67.0% across 91 flights.

DayFlightsOn time30+ minCancelled
Monday8877.3%14.8%1.1%
Tuesday8970.8%19.1%1.1%
Wednesday8770.1%21.8%2.3%
Thursday8684.9%9.3%0.0%
Friday8873.9%14.8%1.1%
Saturday7170.4%14.1%5.6%
Sunday9167.0%18.7%5.5%

Which airline was most reliable for DTW to GSP?

Among qualifying DTW-to-GSP airline results, Delta Air Lines had the highest on-time rate: 75.8% of 393 flights. SkyWest Airlines was lowest at 69.1% across 207 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines39375.8%14.8%2.0%
SkyWest Airlines20769.1%18.8%2.9%

Which month was most reliable for DTW to GSP?

Among qualifying DTW-to-GSP month results, June 2026 had the highest on-time rate: 86.1% of 36 flights. November 2025 was lowest at 57.4% across 47 flights.

MonthFlightsOn time30+ minCancelled
July 20258072.5%18.8%1.2%
August 20256584.6%10.8%0.0%
September 20255284.6%11.5%0.0%
October 20253778.4%8.1%0.0%
November 20254757.4%19.1%8.5%
December 20255759.6%31.6%1.8%
January 20265660.7%21.4%8.9%
February 20265474.1%14.8%1.9%
March 20263473.5%14.7%2.9%
April 20262680.8%7.7%0.0%
May 20265676.8%14.3%1.8%
June 20263686.1%11.1%0.0%

What drove DTW to GSP delay minutes?

Airline was the largest recorded DTW-to-GSP delay category, accounting for 52.9% of 11,566 BTS-attributed delay minutes during July 2025–June 2026.

Airline52.9%
Late aircraft23.4%
National airspace10.7%
Weather13.0%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.