On-Time Report

Airports › Greer (GSP) › July 2026

Airport month · July 2026

Greenville-Spartanburg International in July 2026

68.6%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 July 2026, reporting carriers scheduled 1,303 domestic departures from Greenville-Spartanburg International (GSP). 68.6% left less than 15 minutes late and 70.5% reached their destination on time; 3.4% were cancelled.

Nationally that month, 68.8% of flights departed on time and 69.4% arrived on time, so GSP departures were level with the national departure figure.

A year earlier, in July 2025, the airport had 1,316 departures with 69.4% leaving on time: a change of −0.8 points, with flights down 1%.

Flights arriving at GSP that month were on time 62.7% of the time (1,302 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 48%, air carrier 27% and national aviation system 17%.

Every scheduled departure from GSP in July 2026, judged by arrival at the destination.

July 2026 against a year earlier, the airport's year and the nation

MeasureJul 2026Jul 2025GSP, 12 months to Jul 2026All reported flights, Jul 2026
Departed on time68.6%69.4%79.0%68.8%
Arrived on time70.5%69.3%78.9%69.4%
Cancelled3.4%3.3%2.7%2.6%
Average departure delay (late minutes only)24.1 min24.6 min16.1 min24.1 min
Scheduled departures a day43443921,066
Scheduled departures1,3031,31614,201631,970

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
DL Delta Air Lines28422%82.4%3.0 min1.8%
MQ Envoy Air23118%73.6%6.8 min1.7%
OH PSA Airlines21116%58.3%41.4 min5.7%
YX Republic Airline17413%64.4%18.2 min10.9%
WN Southwest Airlines15412%74.0%9.8 min0.6%
OO SkyWest Airlines937%75.3%4.2 min2.2%
G4 Allegiant Air655%56.9%26.4 min0.0%
AA American Airlines615%63.9%18.6 min1.6%
UA United Airlines302%63.3%10.0 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
GSP–ATLGreer to Atlanta25381.4%4.9 min1.6%
GSP–ORDGreer to Chicago18675.8%2.6 min2.7%
GSP–DFWGreer to Dallas/Fort Worth12068.3%16.1 min0.8%
GSP–CLTGreer to Charlotte11361.9%44.7 min3.5%
GSP–EWRGreer to Newark9367.7%7.0 min15.1%
GSP–BNAGreer to Nashville9272.8%12.7 min0.0%
GSP–DCAGreer to Washington8847.7%35.1 min10.2%
GSP–LGAGreer to New York7361.6%29.2 min6.8%
GSP–MIAGreer to Miami6672.7%10.5 min0.0%
GSP–BWIGreer to Baltimore6275.8%5.3 min1.6%
GSP–DTWGreer to Detroit3190.3%-12.4 min3.2%
GSP–PHLGreer to Philadelphia3174.2%28.3 min0.0%

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), July 2026.

Delay causes

BTS cause categoryShare of delay minutesNational, Jul 2026Minutes
Air carrier27.2%31.7%7,429
Late-arriving aircraft48.4%41.8%13,230
National Aviation System16.6%19.9%4,523
Extreme weather7.8%6.5%2,142
Security0.0%0.1%0
27,324 delay minutes on 333 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← June 2026

Questions and answers

How many flights left GSP on time in July 2026?

68.6% of 1,303 scheduled domestic departures left less than 15 minutes late, and 70.5% reached their destination on time. The national figures that month were 68.8% and 69.4%.

How does that compare with a year earlier?

In July 2025, 69.4% of 1,316 departures left on time and 3.3% were cancelled, against 68.6% and 3.4% in July 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2026; 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.