On-Time Report

Airlines › Southwest Airlines › July 2025

Carrier month · July 2025

Southwest Airlines in July 2025

69.9%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 July 2025, Southwest Airlines (WN) reported 125,677 scheduled domestic flights. 69.9% arrived on time, 1.3% were cancelled and 0.4% diverted.

All reporting carriers together recorded 69.0% on time and 2.5% cancelled that month, so the carrier was 0.9 points above the combined figure.

A year earlier, in July 2024, it reported 127,642 flights with 70.6% on time: a change of −0.7 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 52%, air carrier 25% and national aviation system 18%.

Every scheduled domestic flight reported by Southwest Airlines in July 2025.

July 2025 against a year earlier, the carrier's year and all carriers

MeasureJul 2025Jul 2024WN, 12 months to Jul 2026All carriers, Jul 2025
Arrived on time69.9%70.6%75.5%69.0%
Departed on time66.5%67.5%71.2%69.7%
Cancelled1.3%0.7%0.9%2.5%
Average arrival delay14.7 min12.2 min6.8 min17.3 min
Scheduled flights a day4,1894,2553,80821,048
Scheduled flights125,677127,6421,389,951631,428

104 airports and 1,674 routes had WN flights that month.

Busiest airports that month

AirportDeparturesOn timeAvg arrival delayCancelled
DEN Denver8,69356.2%28.1 min1.3%
LAS Las Vegas7,46668.5%14.5 min0.7%
MDW Chicago7,02965.6%19.2 min1.9%
BWI Baltimore6,64362.7%25.5 min3.7%
DAL Dallas6,17966.9%16.5 min1.3%
PHX Phoenix5,63472.6%10.5 min0.8%
BNA Nashville5,09967.9%15.9 min0.9%
HOU Houston4,69569.5%13.1 min0.6%
MCO Orlando4,13467.1%15.1 min1.0%
STL St. Louis3,75070.4%13.9 min1.0%
AUS Austin3,40566.2%17.7 min0.7%
SAN San Diego3,12770.9%11.1 min0.7%
SMF Sacramento2,99876.6%8.1 min0.5%
OAK Oakland2,63476.5%7.2 min1.1%
SJC San Jose2,50577.4%6.7 min0.7%

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), July 2025.

Delay causes

BTS cause categoryShare of delay minutesAll carriers, Jul 2025Minutes
Air carrier25.3%31.1%597,280
Late-arriving aircraft52.3%40.8%1,234,461
National Aviation System18.0%20.7%424,035
Extreme weather4.2%7.3%100,072
Security0.2%0.1%4,011
2,359,859 delay minutes on 35,731 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← June 2025August 2025 →

Questions and answers

What share of Southwest Airlines flights were on time in July 2025?

69.9% of 125,677 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 69.0% that month.

How does that compare with a year earlier?

In July 2024 the carrier reported 127,642 flights with 70.6% on time and 0.7% cancelled, against 69.9% and 1.3% in July 2025.

Provenance

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