On-Time Report

Airlines › Southwest Airlines › September 2024

Carrier month · September 2024

Southwest Airlines in September 2024

85.0%arrived 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 2024, Southwest Airlines (WN) reported 112,561 scheduled domestic flights. 85.0% arrived on time, 0.4% were cancelled and 0.1% diverted.

All reporting carriers together recorded 83.9% on time and 0.6% cancelled that month, so the carrier was 1.1 points above the combined figure.

A year earlier, in September 2023, it reported 117,870 flights with 79.5% on time: a change of +5.5 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 48%, air carrier 31% and national aviation system 19%.

Every scheduled domestic flight reported by Southwest Airlines in September 2024.

September 2024 against a year earlier, the carrier's year and all carriers

MeasureSep 2024Sep 2023WN, 12 months to Jul 2026All carriers, Sep 2024
Arrived on time85.0%79.5%75.5%83.9%
Departed on time82.8%77.5%71.2%84.4%
Cancelled0.4%0.6%0.9%0.6%
Average arrival delay-0.3 min4.9 min6.8 min1.0 min
Scheduled flights a day3,7523,9293,80819,421
Scheduled flights112,561117,8701,389,951582,622

104 airports and 1,570 routes had WN flights that month.

Busiest airports that month

AirportDeparturesOn timeAvg arrival delayCancelled
DEN Denver7,59483.9%1.3 min0.2%
LAS Las Vegas6,90079.8%2.5 min0.2%
MDW Chicago6,20884.9%-1.0 min0.2%
BWI Baltimore6,15282.4%1.4 min0.5%
DAL Dallas5,40381.7%1.7 min0.3%
PHX Phoenix5,23984.6%0.1 min0.2%
BNA Nashville4,14584.7%0.2 min0.5%
HOU Houston4,04889.3%-6.6 min0.4%
STL St. Louis3,42887.5%-1.9 min0.5%
MCO Orlando2,94183.8%-0.3 min0.2%
SAN San Diego2,88576.9%5.2 min0.1%
OAK Oakland2,84084.6%0.6 min0.4%
AUS Austin2,81786.1%-0.9 min0.5%
SMF Sacramento2,58784.3%0.8 min0.3%
ATL Atlanta2,45487.1%0.6 min0.5%

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of WN flights that arrived on time, by scheduled departure hour (local time at each origin), September 2024.

Delay causes

BTS cause categoryShare of delay minutesAll carriers, Sep 2024Minutes
Air carrier30.8%38.6%226,824
Late-arriving aircraft48.4%38.4%356,397
National Aviation System19.2%18.2%141,152
Extreme weather1.4%4.8%10,277
Security0.2%0.1%1,423
736,073 delay minutes on 16,242 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← August 2024October 2024 →

Questions and answers

What share of Southwest Airlines flights were on time in September 2024?

85.0% of 112,561 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 83.9% that month.

How does that compare with a year earlier?

In September 2023 the carrier reported 117,870 flights with 79.5% on time and 0.6% cancelled, against 85.0% and 0.4% in September 2024.

Provenance

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