WN38

WN38 (Southwest Airlines) is a multi-stop service on 10 routes, busiest Houston to Dallas. Of 154 departures recorded from October 2024 to July 2026, 70.4% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

Months without data are left blank.

The most recent periods10 periods
PeriodDepartures 2025Departures 2026Change vs last year
January–––
February–––
March–18–
April927▲ 200.0%
May1524▲ 60.0%
June–20–
July–18–
August4––
September3––
October4–in progress
November–––
December–––

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

Months without data are left blank.

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods10 periods
PeriodOn time 2025On time 2026Change vs last year
January–––
February–––
March–44.4%–
April100.0%77.8%▼ 22.2%
May57.1%73.9%▲ 29.3%
June–55.0%–
July–72.2%–
August75.0%––
September100.0%––
October50.0%–in progress
November–––
December–––

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods10 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January–––
February–––
March–0–
April00–
May110.0%
June–0–
July–0–
August0––
September0––
October0–in progress
November–––
December–––

according to the US BTS · October 2024 → July 2026

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 98.7% 152
  • Cancelled 1.3% 2

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026

Legs flown under this number

1
RoutesDistance (km)Avg delay On timeDepartures
HOU DAL William P. Hobby Airport – Dallas Love Field 386 20.2 min 70.6% 68
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 9 9 100.0% 0
November 2024 3 3 100.0% 0
April 2025 9 9 100.0% 0
May 2025 15 14 57.1% 1
August 2025 4 4 75.0% 0
September 2025 3 3 100.0% 0
October 2025 4 4 50.0% 0
March 2026 18 18 44.4% 0
April 2026 27 27 77.8% 0
May 2026 24 23 73.9% 1
June 2026 20 20 55.0% 0
July 2026 18 18 72.2% 0

How to read this chart

Loading the guide…