WN3728

WN3728 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Denver to Wichita. Of 516 departures recorded from October 2024 to July 2026, 66.3% 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
January628▲ 366.7%
February428▲ 600.0%
March2316▼ 30.4%
April2930▲ 3.4%
May3136▲ 16.1%
June30300.0%
July31310.0%
August45––
September47––
October32–in progress
November8––
December5––
Year to date (Jan–Jul)154199▲ 29.2%

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
January66.7%84.6%▲ 26.9%
February100.0%88.9%▼ 11.1%
March60.9%75.0%▲ 23.2%
April82.8%86.7%▲ 4.7%
May48.4%88.9%▲ 83.7%
June37.9%73.3%▲ 93.3%
July35.5%35.5%0.0%
August55.6%––
September53.2%––
October78.1%–in progress
November100.0%––
December20.0%––
Year-to-date average (Jan–Jul)61.7%76.1%▲ 23.3%

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
January02–
February01–
March00–
April00–
May00–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November2––
December0––
Year to date (Jan–Jul)13▲ 200.0%

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 98.8% 510
  • Cancelled 1.2% 6

Share of all recorded flights in the period, all legs. · Oct 15, 2024 → Jul 31, 2026

On time, leg by leg

  1. DEN–ICT61 33.3%
  2. SRQ–BWI58 89.1%
  3. PHL–MDW58 91.4%
  4. DAL–DEN58 46.6%
  5. BNA–MCO58 65.5%
  6. SJU–MCO57 52.6%
  7. DEN–LAS31 77.4%
  8. MCO–RDU30 90.0%

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

Legs flown under this number

8
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 7 7 71.4% 0
November 2024 6 6 100.0% 0
December 2024 13 13 100.0% 0
January 2025 6 6 66.7% 0
February 2025 4 4 100.0% 0
March 2025 23 23 60.9% 0
April 2025 29 29 82.8% 0
May 2025 31 31 48.4% 0
June 2025 30 29 37.9% 1
July 2025 31 31 35.5% 0
August 2025 45 45 55.6% 0
September 2025 47 47 53.2% 0
October 2025 32 32 78.1% 0
November 2025 8 6 100.0% 2
December 2025 5 5 20.0% 0
January 2026 28 26 84.6% 2
February 2026 28 27 88.9% 1
March 2026 16 16 75.0% 0
April 2026 30 30 86.7% 0
May 2026 36 36 88.9% 0
June 2026 30 30 73.3% 0
July 2026 31 31 35.5% 0

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