On-Time Report

Airports › Dallas (DAL) › September 2025

Airport month · September 2025

Dallas Love Field in September 2025

78.6%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 September 2025, reporting carriers scheduled 5,518 domestic departures from Dallas Love Field (DAL). 78.6% left less than 15 minutes late and 81.7% reached their destination on time; 0.1% were cancelled.

Nationally that month, 83.1% of flights departed on time and 82.8% arrived on time, so DAL departures were 4.5 points below the national departure figure.

A year earlier, in September 2024, the airport had 5,602 departures with 82.3% leaving on time: a change of −3.7 points, with flights down 1%.

Flights arriving at DAL that month were on time 84.0% of the time (5,520 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 51%, air carrier 26% and national aviation system 21%.

Every scheduled departure from DAL in September 2025, judged by arrival at the destination.

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

MeasureSep 2025Sep 2024DAL, 12 months to Jul 2026All reported flights, Sep 2025
Departed on time78.6%82.3%67.4%83.1%
Arrived on time81.7%81.7%71.6%82.8%
Cancelled0.1%0.3%1.4%0.5%
Average departure delay (late minutes only)12.4 min8.7 min18.4 min12.2 min
Scheduled departures a day18418719318,748
Scheduled departures5,5185,60270,439562,439

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
WN Southwest Airlines5,35697%81.5%3.7 min0.1%
DL Delta Air Lines1623%87.7%-3.9 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
DAL–HOUDallas to Houston33282.5%2.1 min0.3%
DAL–ATLDallas to Atlanta30587.2%-3.4 min0.3%
DAL–DENDallas to Denver22369.1%10.3 min0.0%
DAL–SATDallas to San Antonio21985.4%-0.6 min0.0%
DAL–PHXDallas to Phoenix20374.4%8.7 min1.5%
DAL–LASDallas to Las Vegas19882.3%5.3 min0.0%
DAL–BNADallas to Nashville19387.0%0.6 min0.0%
DAL–MDWDallas to Chicago19077.4%8.1 min0.0%
DAL–AUSDallas to Austin18986.2%-1.3 min0.5%
DAL–MSYDallas to New Orleans17982.1%2.4 min0.0%
DAL–STLDallas to St. Louis17286.6%0.4 min0.0%
DAL–BWIDallas to Baltimore15984.3%1.9 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), September 2025.

Delay causes

BTS cause categoryShare of delay minutesNational, Sep 2025Minutes
Air carrier26.2%34.3%14,501
Late-arriving aircraft51.2%37.4%28,357
National Aviation System21.0%22.6%11,631
Extreme weather1.6%5.6%910
Security0.0%0.1%0
55,399 delay minutes on 993 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← August 2025October 2025 →

Questions and answers

How many flights left DAL on time in September 2025?

78.6% of 5,518 scheduled domestic departures left less than 15 minutes late, and 81.7% reached their destination on time. The national figures that month were 83.1% and 82.8%.

How does that compare with a year earlier?

In September 2024, 82.3% of 5,602 departures left on time and 0.3% were cancelled, against 78.6% and 0.1% in September 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for DAL · methodology · corrections.