WN3136

WN3136 (Southwest Airlines) is a multi-stop service on 27 routes, busiest Milwaukee to Washington. Of 619 departures recorded from October 2024 to July 2026, 71.5% 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
January4329▼ 32.6%
February4618▼ 60.9%
March722▲ 214.3%
April2528▲ 12.0%
May2830▲ 7.1%
June3223▼ 28.1%
July3021▼ 30.0%
August33––
September34––
October31–in progress
November38––
December26––
Year to date (Jan–Jul)211171▼ 19.0%

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
January87.8%89.7%▲ 2.1%
February67.4%88.9%▲ 31.9%
March57.1%81.8%▲ 43.2%
April56.0%71.4%▲ 27.6%
May53.6%46.7%▼ 12.9%
June48.4%47.8%▼ 1.2%
July50.0%42.9%▼ 14.3%
August87.9%––
September88.2%––
October80.7%–in progress
November80.0%––
December76.9%––
Year-to-date average (Jan–Jul)60.0%67.0%▲ 11.6%

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
January20▼ 100.0%
February00–
March00–
April00–
May00–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November3––
December0––
Year to date (Jan–Jul)30▼ 100.0%

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 99.0% 613
  • Cancelled 1.0% 6

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

On time, leg by leg

  1. MKE–DCA104 77.5%
  2. HOU–PHX59 51.7%
  3. MCO–LAS57 56.1%
  4. MDW–LAS42 100.0%
  5. LAS–BUR33 48.5%
  6. IND–MCO31 80.7%

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

Legs flown under this number

6
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 3 3 100.0% 0
November 2024 31 31 77.4% 0
December 2024 41 41 85.4% 0
January 2025 43 41 87.8% 2
February 2025 46 46 67.4% 0
March 2025 7 7 57.1% 0
April 2025 25 25 56.0% 0
May 2025 28 28 53.6% 0
June 2025 32 31 48.4% 1
July 2025 30 30 50.0% 0
August 2025 33 33 87.9% 0
September 2025 34 34 88.2% 0
October 2025 31 31 80.7% 0
November 2025 38 35 80.0% 3
December 2025 26 26 76.9% 0
January 2026 29 29 89.7% 0
February 2026 18 18 88.9% 0
March 2026 22 22 81.8% 0
April 2026 28 28 71.4% 0
May 2026 30 30 46.7% 0
June 2026 23 23 47.8% 0
July 2026 21 21 42.9% 0

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