WN2538

WN2538 (Southwest Airlines) is a multi-stop service on 24 routes, busiest Denver to Milwaukee. Of 525 departures recorded from October 2024 to July 2026, 78.0% 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
January440▲ 900.0%
February819▲ 137.5%
March3323▼ 30.3%
April29290.0%
May2330▲ 30.4%
June297▼ 75.9%
July305▼ 83.3%
August30––
September30––
October28–in progress
November36––
December51––
Year to date (Jan–Jul)156153▼ 1.9%

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
January100.0%83.3%▼ 16.7%
February50.0%94.7%▲ 89.5%
March93.9%90.9%▼ 3.2%
April86.2%72.4%▼ 16.0%
May91.3%76.7%▼ 16.0%
June89.3%100.0%▲ 12.0%
July83.3%100.0%▲ 20.0%
August46.7%––
September73.3%––
October96.4%–in progress
November58.3%––
December52.9%––
Year-to-date average (Jan–Jul)84.9%88.3%▲ 4.0%

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
January04–
February00–
March01–
April00–
May00–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)15▲ 400.0%

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 98.9% 519
  • Cancelled 1.1% 6

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 2026

On time, leg by leg

  1. DEN–MKE59 52.5%
  2. MCO–SAT57 61.4%
  3. HOU–AUS47 87.2%
  4. DAL–DEN46 91.3%
  5. LAS–AUS42 81.0%
  6. MDW–MCO36 83.3%
  7. MCO–PHX34 88.2%
  8. CMH–SRQ33 87.9%

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 7 100.0% 0
November 2024 19 19 89.5% 0
December 2024 15 15 73.3% 0
January 2025 4 4 100.0% 0
February 2025 8 8 50.0% 0
March 2025 33 33 93.9% 0
April 2025 29 29 86.2% 0
May 2025 23 23 91.3% 0
June 2025 29 28 89.3% 1
July 2025 30 30 83.3% 0
August 2025 30 30 46.7% 0
September 2025 30 30 73.3% 0
October 2025 28 28 96.4% 0
November 2025 36 36 58.3% 0
December 2025 51 51 52.9% 0
January 2026 40 36 83.3% 4
February 2026 19 19 94.7% 0
March 2026 23 22 90.9% 1
April 2026 29 29 72.4% 0
May 2026 30 30 76.7% 0
June 2026 7 7 100.0% 0
July 2026 5 5 100.0% 0

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