WN1955

WN1955 (Southwest Airlines) is a multi-stop service on 29 routes, busiest Baltimore to Houston. Of 709 departures recorded from October 2024 to July 2026, 75.9% 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
January3027▼ 10.0%
February2834▲ 21.4%
March3132▲ 3.2%
April3946▲ 17.9%
May4554▲ 20.0%
June3127▼ 12.9%
July3130▼ 3.2%
August22––
September21––
October34–in progress
November33––
December31––
Year to date (Jan–Jul)235250▲ 6.4%

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
January78.6%96.3%▲ 22.6%
February75.0%76.5%▲ 2.0%
March90.3%86.7%▼ 4.0%
April74.4%33.3%▼ 55.2%
May62.2%22.2%▼ 64.3%
June77.4%74.1%▼ 4.3%
July93.6%72.4%▼ 22.6%
August81.8%––
September90.5%––
October88.2%–in progress
November93.9%––
December96.8%––
Year-to-date average (Jan–Jul)78.8%65.9%▼ 16.3%

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
January20▼ 100.0%
February00–
March02–
April04–
May00–
June00–
July01–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)27▲ 250.0%

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% 700
  • Cancelled 1.3% 9

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

On time, leg by leg

  1. BWI–HOU116 83.3%
  2. LGB–AUS61 88.5%
  3. MDW–GRR58 28.6%
  4. FAT–DEN58 58.6%
  5. HOU–BNA49 77.1%
  6. LGB–RNO42 90.5%
  7. PVD–BWI39 84.6%
  8. FLL–MDW34 87.1%

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

Legs flown under this number

10
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 29 29 93.1% 0
November 2024 26 26 92.3% 0
December 2024 28 28 92.9% 0
January 2025 30 28 78.6% 2
February 2025 28 28 75.0% 0
March 2025 31 31 90.3% 0
April 2025 39 39 74.4% 0
May 2025 45 45 62.2% 0
June 2025 31 31 77.4% 0
July 2025 31 31 93.6% 0
August 2025 22 22 81.8% 0
September 2025 21 21 90.5% 0
October 2025 34 34 88.2% 0
November 2025 33 33 93.9% 0
December 2025 31 31 96.8% 0
January 2026 27 27 96.3% 0
February 2026 34 34 76.5% 0
March 2026 32 30 86.7% 2
April 2026 46 42 33.3% 4
May 2026 54 54 22.2% 0
June 2026 27 27 74.1% 0
July 2026 30 29 72.4% 1

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