Greenville-Spartanburg International in December 2023

88.5%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 December 2023, reporting carriers scheduled 1,178 domestic departures from Greenville-Spartanburg International (GSP). 88.5% left less than 15 minutes late and 88.6% reached their destination on time; 0.2% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so GSP departures were 5.4 points above the national departure figure.

Flights arriving at GSP that month were on time 86.5% of the time (1,175 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 48%, late-arriving aircraft 36% and national aviation system 12%.

On time 88.6%
Arrived 15+ minutes late 11.2%
Cancelled 0.2%
Diverted 0.0%

Every scheduled departure from GSP in December 2023, judged by arrival at the destination.

December 2023 against a year earlier, the airport's year and the nation

Measure	Dec 2023	Year earlier	GSP, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	88.5%	—	79.0%	83.1%
Arrived on time	88.6%	—	78.9%	83.8%
Cancelled	0.2%	—	2.7%	0.4%
Average departure delay (late minutes only)	9.6 min	—	16.1 min	11.6 min
Scheduled departures a day	39	—	39	19,013
Scheduled departures	1,178	—	14,201	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	297	25%	85.9%	-1.4 min	0.3%
DL Delta Air Lines	187	16%	94.1%	-7.5 min	0.0%
YX Republic Airline	186	16%	95.7%	-12.6 min	0.0%
WN Southwest Airlines	125	11%	89.6%	-3.1 min	0.0%
9E Endeavor Air	95	8%	92.6%	-8.5 min	1.1%
MQ Envoy Air	85	7%	88.2%	-0.3 min	0.0%
AA American Airlines	80	7%	75.0%	16.1 min	0.0%
OO SkyWest Airlines	53	4%	92.5%	-9.2 min	0.0%
UA United Airlines	41	3%	85.4%	-5.0 min	0.0%
G4 Allegiant Air	29	2%	55.2%	64.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GSP–ATL	Greer to Atlanta	266	93.6%	-6.9 min	0.0%
GSP–CLT	Greer to Charlotte	230	85.2%	-0.6 min	0.0%
GSP–LGA	Greer to New York	135	94.8%	-10.6 min	0.7%
GSP–ORD	Greer to Chicago	90	94.4%	-12.4 min	0.0%
GSP–DFW	Greer to Dallas/Fort Worth	89	78.7%	9.9 min	0.0%
GSP–DCA	Greer to Washington	82	85.4%	-2.2 min	1.2%
GSP–EWR	Greer to Newark	68	97.1%	-18.7 min	0.0%
GSP–PHL	Greer to Philadelphia	38	89.5%	9.9 min	0.0%
GSP–BWI	Greer to Baltimore	33	75.8%	4.1 min	0.0%
GSP–DEN	Greer to Denver	31	96.8%	-13.8 min	0.0%
GSP–IAH	Greer to Houston	31	80.6%	1.4 min	0.0%
GSP–MIA	Greer to Miami	31	90.3%	-0.9 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), December 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	47.7%	37.1%	4,755
Late-arriving aircraft	36.4%	38.8%	3,634
National Aviation System	12.4%	17.6%	1,233
Extreme weather	3.5%	6.2%	351
Security	0.0%	0.3%	0

9,973 delay minutes on 132 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 December 2023?

88.5% of 1,178 scheduled domestic departures left less than 15 minutes late, and 88.6% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 2022 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 December 2023; 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.