On-Time Report

Airports › Greer (GSP) › January 2025

Airport month · January 2025

Greenville-Spartanburg International in January 2025

81.3%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 January 2025, reporting carriers scheduled 1,098 domestic departures from Greenville-Spartanburg International (GSP). 81.3% left less than 15 minutes late and 82.7% reached their destination on time; 4.4% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so GSP departures were 2.0 points above the national departure figure.

A year earlier, in January 2024, the airport had 1,207 departures with 79.4% leaving on time: a change of +1.9 points, with flights down 9%.

Flights arriving at GSP that month were on time 75.4% of the time (1,098 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, national aviation system 26% and air carrier 25%.

Every scheduled departure from GSP in January 2025, judged by arrival at the destination.

January 2025 against a year earlier, the airport's year and the nation

MeasureJan 2025Jan 2024GSP, 12 months to Jul 2026All reported flights, Jan 2025
Departed on time81.3%79.4%79.0%79.3%
Arrived on time82.7%78.5%78.9%78.6%
Cancelled4.4%3.1%2.7%3.0%
Average departure delay (late minutes only)11.4 min16.2 min16.1 min14.0 min
Scheduled departures a day37403917,992
Scheduled departures1,0981,20714,201539,747

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
OH PSA Airlines30928%81.9%0.2 min5.5%
DL Delta Air Lines19618%82.1%-3.1 min5.1%
MQ Envoy Air14713%85.7%1.0 min2.7%
YX Republic Airline14513%82.8%-2.4 min3.4%
WN Southwest Airlines10810%87.0%-4.7 min4.6%
AA American Airlines858%80.0%-0.4 min4.7%
OO SkyWest Airlines484%87.5%-0.3 min2.1%
UA United Airlines313%74.2%15.4 min3.2%
G4 Allegiant Air293%72.4%12.6 min3.4%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
GSP–CLTGreer to Charlotte26385.6%-2.0 min4.2%
GSP–ATLGreer to Atlanta22783.3%-4.5 min5.3%
GSP–DFWGreer to Dallas/Fort Worth9378.5%6.1 min4.3%
GSP–ORDGreer to Chicago9086.7%-4.2 min3.3%
GSP–LGAGreer to New York7776.6%1.8 min3.9%
GSP–DCAGreer to Washington6669.7%7.9 min9.1%
GSP–MIAGreer to Miami6287.1%-2.3 min1.6%
GSP–BWIGreer to Baltimore4584.4%-12.9 min6.7%
GSP–BNAGreer to Nashville3187.1%14.4 min0.0%
GSP–DENGreer to Denver3190.3%-3.7 min3.2%
GSP–IAHGreer to Houston3174.2%15.4 min3.2%
GSP–PHLGreer to Philadelphia3183.9%-4.7 min6.5%

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), January 2025.

Delay causes

BTS cause categoryShare of delay minutesNational, Jan 2025Minutes
Air carrier24.9%36.2%2,722
Late-arriving aircraft44.1%34.7%4,824
National Aviation System26.2%19.9%2,864
Extreme weather4.8%9.1%522
Security0.0%0.2%3
10,935 delay minutes on 142 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← December 2024February 2025 →

Questions and answers

How many flights left GSP on time in January 2025?

81.3% of 1,098 scheduled domestic departures left less than 15 minutes late, and 82.7% reached their destination on time. The national figures that month were 79.3% and 78.6%.

How does that compare with a year earlier?

In January 2024, 79.4% of 1,207 departures left on time and 3.1% were cancelled, against 81.3% and 4.4% in January 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 2025; 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.