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

Atlanta, GA (ATL) to Greer, SC (GSP) flight delay odds

82.6% of 2,817 official scheduled ATL-to-GSP flights arrived on time; 10.0% arrived at least 30 minutes late and 1.5% 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
82.6%arrived on time
10.0%30+ min late
1.5%cancelled
2,817scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.6%all scheduled flights
120+ minutes late1.6%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+1.6 mincompleted flights

Which departure time was most reliable for ATL to GSP?

Among qualifying ATL-to-GSP departure window results, Early morning had the highest on-time rate: 90.3% of 360 flights. Evening was lowest at 78.7% across 709 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36090.3%4.7%1.4%
Late morning44689.7%4.7%1.3%
Afternoon78280.1%11.1%1.8%
Evening70978.7%13.1%1.7%
Night52080.2%12.3%1.2%

Which weekday was most reliable for ATL to GSP?

Among qualifying ATL-to-GSP weekday results, Wednesday had the highest on-time rate: 87.8% of 385 flights. Sunday was lowest at 76.2% across 424 flights.

DayFlightsOn time30+ minCancelled
Monday42981.1%12.6%0.9%
Tuesday39584.1%9.9%0.8%
Wednesday38587.8%7.5%0.0%
Thursday42283.4%10.4%0.2%
Friday42384.9%8.0%0.7%
Saturday33980.8%9.7%4.4%
Sunday42476.2%11.6%4.0%

Which airline was most reliable for ATL to GSP?

Only Delta Air Lines met the ATL-to-GSP airline threshold: 82.6% of 2,817 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines2,81782.6%10.0%1.5%

Which month was most reliable for ATL to GSP?

Among qualifying ATL-to-GSP month results, April 2026 had the highest on-time rate: 91.3% of 241 flights. July 2025 was lowest at 73.8% across 252 flights.

MonthFlightsOn time30+ minCancelled
July 202525273.8%17.1%0.4%
August 202525282.5%9.9%0.4%
September 202523889.1%5.5%0.0%
October 202525286.5%8.7%0.0%
November 202523385.8%6.9%2.6%
December 202520781.2%11.1%1.4%
January 202620677.7%7.3%8.3%
February 202620479.9%10.3%1.5%
March 202623176.2%14.7%2.2%
April 202624191.3%3.3%1.7%
May 202625479.5%14.2%1.2%
June 202624786.2%10.5%0.0%

What drove ATL to GSP delay minutes?

Airline was the largest recorded ATL-to-GSP delay category, accounting for 53.7% of 25,121 BTS-attributed delay minutes during July 2025–June 2026.

Airline53.7%
Late aircraft25.0%
National airspace13.3%
Weather8.0%
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.