On-Time Report

Airports › Houston (HOU) › December 2024

Airport month · December 2024

William P Hobby in December 2024

75.8%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 December 2024, reporting carriers scheduled 4,633 domestic departures from William P Hobby (HOU). 75.8% left less than 15 minutes late and 77.9% reached their destination on time; 0.5% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so HOU departures were 2.0 points below the national departure figure.

A year earlier, in December 2023, the airport had 5,076 departures with 80.5% leaving on time: a change of −4.7 points, with flights down 9%.

Flights arriving at HOU that month were on time 78.6% of the time (4,632 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 51%, air carrier 19% and extreme weather 16%.

Every scheduled departure from HOU in December 2024, judged by arrival at the destination.

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

MeasureDec 2024Dec 2023HOU, 12 months to Jul 2026All reported flights, Dec 2024
Departed on time75.8%80.5%72.7%77.8%
Arrived on time77.9%84.2%76.0%78.1%
Cancelled0.5%0.3%0.9%0.7%
Average departure delay (late minutes only)16.8 min10.0 min15.0 min16.6 min
Scheduled departures a day15416914819,686
Scheduled departures4,6335,07653,894590,581

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
WN Southwest Airlines4,27192%77.9%9.1 min0.4%
DL Delta Air Lines1373%80.3%6.7 min0.0%
MQ Envoy Air1323%78.8%9.5 min3.0%
OO SkyWest Airlines511%60.8%25.5 min2.0%
G4 Allegiant Air230%73.9%16.5 min0.0%
F9 Frontier Airlines190%89.5%0.4 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
HOU–DALHouston to Dallas32776.1%15.0 min1.2%
HOU–ATLHouston to Atlanta27079.6%7.8 min0.0%
HOU–DENHouston to Denver23883.6%5.6 min0.0%
HOU–PHXHouston to Phoenix19381.9%6.3 min0.0%
HOU–MSYHouston to New Orleans18681.7%7.3 min0.0%
HOU–DFWHouston to Dallas/Fort Worth18373.8%14.0 min2.7%
HOU–LASHouston to Las Vegas17483.9%5.5 min0.0%
HOU–MCOHouston to Orlando17374.0%8.5 min0.6%
HOU–BNAHouston to Nashville16680.7%9.3 min0.0%
HOU–MDWHouston to Chicago14075.7%12.5 min0.7%
HOU–STLHouston to St. Louis13581.5%2.8 min0.7%
HOU–BWIHouston to Baltimore13177.9%8.2 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), December 2024.

Delay causes

BTS cause categoryShare of delay minutesNational, Dec 2024Minutes
Air carrier19.0%34.3%13,143
Late-arriving aircraft51.3%40.2%35,534
National Aviation System14.0%17.8%9,727
Extreme weather15.6%7.5%10,784
Security0.1%0.2%53
69,241 delay minutes on 991 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← November 2024January 2025 →

Questions and answers

How many flights left HOU on time in December 2024?

75.8% of 4,633 scheduled domestic departures left less than 15 minutes late, and 77.9% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 80.5% of 5,076 departures left on time and 0.3% were cancelled, against 75.8% and 0.5% in December 2024.

Provenance

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