Greenville-Spartanburg International in April 2024

86.8%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 April 2024, reporting carriers scheduled 1,326 domestic departures from Greenville-Spartanburg International (GSP). 86.8% left less than 15 minutes late and 84.5% reached their destination on time; 0.5% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.2% arrived on time, so GSP departures were 6.3 points above the national departure figure.

Flights arriving at GSP that month were on time 80.7% of the time (1,326 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 50%, national aviation system 20% and air carrier 20%.

On time 84.5%
Arrived 15+ minutes late 14.9%
Cancelled 0.5%
Diverted 0.1%

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

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

Measure	Apr 2024	Year earlier	GSP, 12 months to Jul 2026	All reported flights, Apr 2024
Departed on time	86.8%	—	79.0%	80.5%
Arrived on time	84.5%	—	78.9%	80.2%
Cancelled	0.5%	—	2.7%	0.7%
Average departure delay (late minutes only)	8.9 min	—	16.1 min	14.2 min
Scheduled departures a day	44	—	39	19,406
Scheduled departures	1,326	—	14,201	582,185

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	316	24%	75.6%	7.9 min	0.0%
DL Delta Air Lines	225	17%	93.3%	-6.3 min	0.0%
YX Republic Airline	145	11%	85.5%	-8.7 min	1.4%
WN Southwest Airlines	127	10%	87.4%	-0.5 min	0.0%
OO SkyWest Airlines	123	9%	87.8%	-3.7 min	0.0%
MQ Envoy Air	119	9%	85.7%	0.4 min	0.0%
AA American Airlines	111	8%	76.6%	9.5 min	2.7%
9E Endeavor Air	104	8%	92.3%	-3.1 min	1.9%
UA United Airlines	30	2%	90.0%	2.6 min	0.0%
G4 Allegiant Air	26	2%	73.1%	16.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GSP–ATL	Greer to Atlanta	291	92.4%	-5.8 min	0.0%
GSP–CLT	Greer to Charlotte	260	76.5%	7.1 min	0.4%
GSP–LGA	Greer to New York	134	88.1%	-1.7 min	2.2%
GSP–ORD	Greer to Chicago	116	85.3%	-2.7 min	0.0%
GSP–EWR	Greer to Newark	90	86.7%	-12.7 min	1.1%
GSP–DFW	Greer to Dallas/Fort Worth	87	73.6%	15.2 min	2.3%
GSP–DCA	Greer to Washington	82	72.0%	7.8 min	0.0%
GSP–MIA	Greer to Miami	57	89.5%	-2.5 min	0.0%
GSP–DTW	Greer to Detroit	48	97.9%	-9.2 min	0.0%
GSP–BWI	Greer to Baltimore	34	76.5%	11.7 min	0.0%
GSP–PHL	Greer to Philadelphia	33	90.9%	1.7 min	0.0%
GSP–DEN	Greer to Denver	30	93.3%	-5.7 min	0.0%

By scheduled departure hour

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

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

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2024	Minutes
Air carrier	19.7%	33.6%	2,377
Late-arriving aircraft	49.7%	41.0%	5,983
National Aviation System	19.8%	20.0%	2,379
Extreme weather	10.2%	5.1%	1,228
Security	0.6%	0.2%	73

12,040 delay minutes on 197 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 April 2024?

86.8% of 1,326 scheduled domestic departures left less than 15 minutes late, and 84.5% reached their destination on time. The national figures that month were 80.5% and 80.2%.

How does that compare with a year earlier?

April 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 April 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.