How delayed is Greer, SC (GSP)?

Greer, SC has an on-time rate of 83.1%. The average delay is 12.9 min.

What causes delays at GSP?

The main delay causes at GSP are carrier issues (33.4%), weather (5.0%), NAS/air traffic control (21.2%), and late arriving aircraft (40.3%).

What is the best time to fly from GSP?

The best time to fly from GSP is at 5:00 with a 91.0% on-time rate. Sep is the best month with 87.9% on-time flights.

Greer, SC

Greer, SC, SC — GSP

On-Time Rate

83.1%

2019-2025

Avg Delay

12.9 min

when delayed

Cancel Rate

2.2%

flights cancelled

Total Flights

91,537

2019-2025

Best Month

Sep

87.9% on-time

Worst Month

Jul

76.4% on-time

Best Departure Time

5:00

91.0% on-time

12-Month On-Time Trend

Delay Causes

Best Time to Fly (By Hour)

Seasonal Pattern

Airlines at GSP

Airline	Flights	On-Time	Avg Delay
PSA Airlines	24,071	81.6%	N/A
Delta Air Lines	16,712	91.4%	N/A
Envoy Air	9,087	80.3%	N/A
Southwest Airlines	8,738	87.1%	N/A
Republic Airways	8,262	83.0%	N/A
SkyWest Airlines	5,692	81.5%	N/A
Endeavor Air	5,649	83.9%	N/A
American Airlines	5,590	74.4%	N/A
Mesa Airlines	2,454	84.9%	N/A
Allegiant Air	2,269	64.7%	N/A

Most Delayed Routes

Destination	On-Time
GSP → FLLFort Lauderdale, FL	56.0%
GSP → SFBSanford, FL	64.1%
GSP → MCOOrlando, FL	66.2%
GSP → PIESt. Petersburg, FL	70.8%
GSP → DCAWashington, DC	76.9%

Most Punctual Routes

Destination	On-Time
GSP → ATLAtlanta, GA	90.6%
GSP → BNANashville, TN	89.1%
GSP → DTWDetroit, MI	88.9%
GSP → MIAMiami, FL	85.6%
GSP → BWIBaltimore, MD	85.4%

Was your flight from Greer, SC delayed?

You may be entitled to compensation of up to $700 per passenger for delayed or cancelled flights. Check your eligibility now.

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Data source: Bureau of Transportation Statistics (BTS) On-Time Performance dataset. Statistics are based on reported flight data from 2019 through November 2025 and are not real-time. See our data methodology for details.