WN1133

WN1133 (Southwest Airlines) is a multi-stop service on 33 routes, busiest Houston to San Juan. Of 786 departures recorded from October 2024 to July 2026, 67.5% 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
January3040▲ 33.3%
February2844▲ 57.1%
March3526▼ 25.7%
April5629▼ 48.2%
May6231▼ 50.0%
June3558▲ 65.7%
July3162▲ 100.0%
August27––
September26––
October27–in progress
November42––
December31––
Year to date (Jan–Jul)277290▲ 4.7%

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
January80.0%76.3%▼ 4.6%
February85.2%70.5%▼ 17.3%
March85.7%42.3%▼ 50.6%
April85.7%79.3%▼ 7.5%
May75.4%48.4%▼ 35.8%
June65.7%53.5%▼ 18.7%
July67.7%35.5%▼ 47.6%
August44.4%––
September53.9%––
October74.1%–in progress
November71.4%––
December74.2%––
Year-to-date average (Jan–Jul)77.9%58.0%▼ 25.6%

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
January02–
February10▼ 100.0%
March00–
April00–
May10▼ 100.0%
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)220.0%

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 99.5% 782
  • Cancelled 0.5% 4

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026

On time, leg by leg

  1. HOU–SJU61 60.7%
  2. BZN–DEN58 29.3%
  3. ALB–BWI58 79.3%
  4. MCI–SAN57 61.4%
  5. ROC–MDW50 85.7%
  6. DEN–MSP50 50.0%
  7. PIT–BNA46 84.8%
  8. PHX–AUS41 80.5%

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

Legs flown under this number

11
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 7 7 85.7% 0
November 2024 28 28 75.0% 0
December 2024 31 31 80.7% 0
January 2025 30 30 80.0% 0
February 2025 28 27 85.2% 1
March 2025 35 35 85.7% 0
April 2025 56 56 85.7% 0
May 2025 62 61 75.4% 1
June 2025 35 35 65.7% 0
July 2025 31 31 67.7% 0
August 2025 27 27 44.4% 0
September 2025 26 26 53.9% 0
October 2025 27 27 74.1% 0
November 2025 42 42 71.4% 0
December 2025 31 31 74.2% 0
January 2026 40 38 76.3% 2
February 2026 44 44 70.5% 0
March 2026 26 26 42.3% 0
April 2026 29 29 79.3% 0
May 2026 31 31 48.4% 0
June 2026 58 58 53.5% 0
July 2026 62 62 35.5% 0

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