Greenville-Spartanburg International in May 2024

76.4%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In May 2024, reporting carriers scheduled 1,449 domestic departures from Greenville-Spartanburg International (GSP). 76.4% left less than 15 minutes late and 74.7% reached their destination on time; 1.4% were cancelled.

Nationally that month, 73.4% of flights departed on time and 72.3% arrived on time, so GSP departures were 3.0 points above the national departure figure.

Flights arriving at GSP that month were on time 70.1% of the time (1,449 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, air carrier 27% and national aviation system 21%.

On time 74.7%
Arrived 15+ minutes late 23.7%
Cancelled 1.4%
Diverted 0.2%

Every scheduled departure from GSP in May 2024, judged by arrival at the destination.

May 2024 against a year earlier, the airport's year and the nation

Measure	May 2024	Year earlier	GSP, 12 months to Jul 2026	All reported flights, May 2024
Departed on time	76.4%	—	79.0%	73.4%
Arrived on time	74.7%	—	78.9%	72.3%
Cancelled	1.4%	—	2.7%	1.4%
Average departure delay (late minutes only)	20.4 min	—	16.1 min	20.8 min
Scheduled departures a day	48	—	39	20,325
Scheduled departures	1,449	—	14,201	609,743

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	324	22%	74.4%	9.6 min	0.6%
DL Delta Air Lines	241	17%	86.3%	5.0 min	0.8%
MQ Envoy Air	175	12%	58.3%	27.8 min	1.1%
YX Republic Airline	158	11%	81.6%	-1.3 min	1.3%
AA American Airlines	148	10%	66.2%	33.6 min	4.7%
WN Southwest Airlines	128	9%	75.8%	10.8 min	0.8%
OO SkyWest Airlines	124	9%	78.2%	10.8 min	0.0%
9E Endeavor Air	89	6%	78.7%	-0.8 min	2.2%
UA United Airlines	35	2%	71.4%	26.5 min	2.9%
G4 Allegiant Air	27	2%	59.3%	35.0 min	3.7%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GSP–ATL	Greer to Atlanta	296	83.8%	6.4 min	1.0%
GSP–CLT	Greer to Charlotte	270	65.6%	20.3 min	1.5%
GSP–ORD	Greer to Chicago	145	74.5%	13.0 min	0.7%
GSP–LGA	Greer to New York	138	78.3%	2.5 min	2.2%
GSP–DFW	Greer to Dallas/Fort Worth	93	59.1%	43.7 min	5.4%
GSP–EWR	Greer to Newark	91	84.6%	-7.1 min	0.0%
GSP–DCA	Greer to Washington	85	71.8%	9.6 min	2.4%
GSP–PHL	Greer to Philadelphia	81	81.5%	8.3 min	0.0%
GSP–MIA	Greer to Miami	62	66.1%	18.5 min	0.0%
GSP–DTW	Greer to Detroit	57	94.7%	-5.3 min	0.0%
GSP–BWI	Greer to Baltimore	34	64.7%	23.8 min	0.0%
GSP–DEN	Greer to Denver	31	74.2%	13.1 min	0.0%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), May 2024.

Delay causes

BTS cause category	Share of delay minutes	National, May 2024	Minutes
Air carrier	27.0%	29.8%	7,756
Late-arriving aircraft	41.9%	43.0%	12,056
National Aviation System	20.8%	20.1%	5,968
Extreme weather	10.3%	7.0%	2,973
Security	0.0%	0.1%	8

28,761 delay minutes on 343 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left GSP on time in May 2024?

76.4% of 1,449 scheduled domestic departures left less than 15 minutes late, and 74.7% reached their destination on time. The national figures that month were 73.4% and 72.3%.

How does that compare with a year earlier?

May 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for GSP · methodology · corrections.