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Route Reliability

Atlanta → Greenville

ATL–GSP · 153 miles · Hartsfield–Jackson Atlanta International Airport to Greenville–Spartanburg International Airport

83
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
3 min
Average arrival delay
1.7%
Cancelled
2,813
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 83% of the time across 2,813 flights. No comparison to make.

What the data says

Morning flights do better here.

ATL–GSP flights departing between 6–9 AM arrived on time 92% of the time, versus 77% between 3–6 PM.

Sunday scaries are real for this one.

ATL–GSP flights arrived on time 87% of the time on Wednesdays. On Sundays: 79%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon81%(423 flights)
  • Tue83%(382 flights)
  • Wed87%(382 flights)
  • Thu83%(419 flights)
  • Fri84%(415 flights)
  • Sat81%(328 flights)
  • Sun79%(413 flights)
On-time by departure window
  • 6–9 AM92%(353 flights)
  • 9 AM–12 PM91%(418 flights)
  • 12–3 PM85%(435 flights)
  • 3–6 PM77%(461 flights)
  • 6–9 PM78%(578 flights)
  • 9 PM–12 AM79%(517 flights)
On-time trend by month
82%
May

Jun 64% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%231
July 202575%251
August 202584%252
September 202590%237
October 202588%251
November 202589%226
December 202583%204
January 202685%192
February 202682%201
March 202678%226
April 202693%237
May 202682%254

Keep nerding

Based on 2,813 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.