WN19

WN19 (Southwest Airlines) is a multi-stop service on 21 routes, busiest Dallas to Houston. Of 840 departures recorded from October 2024 to July 2026, 81.6% left on time, according to the US BTS.

Recorded departures by month

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

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January3315▼ 54.5%
February3931▼ 20.5%
March2642▲ 61.5%
April4551▲ 13.3%
May5057▲ 14.0%
June5260▲ 15.4%
July5267▲ 28.8%
August36––
September35––
October44–in progress
November25––
December8––
Year to date (Jan–Jul)297323▲ 8.8%

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

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

The most recent periods19 periods
PeriodOn time 2025On time 2026Change vs last year
January89.7%81.8%▼ 8.7%
February92.3%83.3%▼ 9.7%
March87.5%71.4%▼ 18.4%
April81.4%82.4%▲ 1.2%
May87.5%87.3%▼ 0.3%
June88.2%69.5%▼ 21.2%
July86.3%58.2%▼ 32.5%
August91.7%––
September88.6%––
October88.6%–in progress
November82.4%––
December62.5%––
Year-to-date average (Jan–Jul)87.6%76.3%▼ 12.9%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January440.0%
February01–
March20▼ 100.0%
April20▼ 100.0%
May220.0%
June110.0%
July10▼ 100.0%
August0––
September0––
October0–in progress
November8––
December0––
Year to date (Jan–Jul)128▼ 33.3%

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 96.5% 811
  • Cancelled 3.5% 29

Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026

On time, leg by leg

  1. DAL–HOU443 79.6%
  2. MCO–DAL68 78.1%
  3. LIT–DAL57 71.9%
  4. BNA–LIT57 89.5%

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

Legs flown under this number

4
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 30 29 86.2% 1
November 2024 24 24 87.5% 0
December 2024 18 18 61.1% 0
January 2025 33 29 89.7% 4
February 2025 39 39 92.3% 0
March 2025 26 24 87.5% 2
April 2025 45 43 81.4% 2
May 2025 50 48 87.5% 2
June 2025 52 51 88.2% 1
July 2025 52 51 86.3% 1
August 2025 36 36 91.7% 0
September 2025 35 35 88.6% 0
October 2025 44 44 88.6% 0
November 2025 25 17 82.4% 8
December 2025 8 8 62.5% 0
January 2026 15 11 81.8% 4
February 2026 31 30 83.3% 1
March 2026 42 42 71.4% 0
April 2026 51 51 82.4% 0
May 2026 57 55 87.3% 2
June 2026 60 59 69.5% 1
July 2026 67 67 58.2% 0

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