WN15

WN15 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Dallas to Houston. Of 727 departures recorded from October 2024 to July 2026, 88.3% 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 periods18 periods
PeriodDepartures 2025Departures 2026Change vs last year
January4739▼ 17.0%
February3439▲ 14.7%
March4814▼ 70.8%
April481▼ 97.9%
May46––
June378▼ 78.4%
July3414▼ 58.8%
August40––
September42––
October75–in progress
November50––
December29––

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 periods18 periods
PeriodOn time 2025On time 2026Change vs last year
January90.2%100.0%▲ 10.8%
February88.2%87.2%▼ 1.2%
March84.8%92.9%▲ 9.5%
April85.4%100.0%▲ 17.1%
May86.4%––
June83.8%50.0%▼ 40.3%
July94.1%78.6%▼ 16.5%
August92.3%––
September78.6%––
October89.3%–in progress
November95.7%––
December96.4%––

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 periods18 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January62▼ 66.7%
February00–
March20▼ 100.0%
April00–
May2––
June00–
July00–
August1––
September0––
October0–in progress
November4––
December1––

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 97.5% 709
  • Cancelled 2.5% 18

Share of all recorded flights in the period, all legs. · Oct 15, 2024 → Jul 29, 2026

On time, leg by leg

  1. DAL–HOU406 87.6%
  2. PHX–DAL68 94.1%

Departures within 15 minutes of schedule; small figure = departures recorded.

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
DAL HOU Dallas Love Field – William P. Hobby Airport 386 5.6 min 87.6% 406
PHX DAL Phoenix Sky Harbor International Airport – Dallas Love Field 1,412 -0.3 min 94.1% 68
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 6 6 100.0% 0
November 2024 42 42 90.5% 0
December 2024 34 34 79.4% 0
January 2025 47 41 90.2% 6
February 2025 34 34 88.2% 0
March 2025 48 46 84.8% 2
April 2025 48 48 85.4% 0
May 2025 46 44 86.4% 2
June 2025 37 37 83.8% 0
July 2025 34 34 94.1% 0
August 2025 40 39 92.3% 1
September 2025 42 42 78.6% 0
October 2025 75 75 89.3% 0
November 2025 50 46 95.7% 4
December 2025 29 28 96.4% 1
January 2026 39 37 100.0% 2
February 2026 39 39 87.2% 0
March 2026 14 14 92.9% 0
April 2026 1 1 100.0% 0
June 2026 8 8 50.0% 0
July 2026 14 14 78.6% 0

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