WN204

WN204 (Southwest Airlines) is a multi-stop service on 35 routes, busiest Nashville to Austin. Of 696 departures recorded from October 2024 to July 2026, 81.6% 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
January2830▲ 7.1%
February2827▼ 3.6%
March3150▲ 61.3%
April3042▲ 40.0%
May3139▲ 25.8%
June3432▼ 5.9%
July3632▼ 11.1%
August28––
September26––
October35–in progress
November30––
December31––
Year to date (Jan–Jul)218252▲ 15.6%

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
January92.6%88.9%▼ 4.0%
February100.0%81.5%▼ 18.5%
March100.0%71.4%▼ 28.6%
April86.7%85.7%▼ 1.1%
May83.9%94.9%▲ 13.1%
June73.5%51.6%▼ 29.8%
July72.7%48.4%▼ 33.5%
August85.7%––
September96.2%––
October54.3%–in progress
November79.3%––
December89.7%––
Year-to-date average (Jan–Jul)87.1%74.6%▼ 14.3%

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
January13▲ 200.0%
February00–
March01–
April00–
May00–
June01–
July31▼ 66.7%
August0––
September0––
October0–in progress
November1––
December2––
Year to date (Jan–Jul)46▲ 50.0%

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 98.1% 683
  • Cancelled 1.9% 13

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

On time, leg by leg

  1. BNA–AUS93 95.7%
  2. DEN–MSY58 82.8%
  3. ATL–BNA58 96.6%
  4. ATL–DEN56 84.9%
  5. BDL–MDW50 96.0%
  6. BUR–SMF42 85.0%
  7. CMH–DCA36 67.7%
  8. MKE–LAS33 100.0%

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

Legs flown under this number

9
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 85.0% 0
November 2024 30 30 96.7% 0
December 2024 26 26 92.3% 0
January 2025 28 27 92.6% 1
February 2025 28 28 100.0% 0
March 2025 31 31 100.0% 0
April 2025 30 30 86.7% 0
May 2025 31 31 83.9% 0
June 2025 34 34 73.5% 0
July 2025 36 33 72.7% 3
August 2025 28 28 85.7% 0
September 2025 26 26 96.2% 0
October 2025 35 35 54.3% 0
November 2025 30 29 79.3% 1
December 2025 31 29 89.7% 2
January 2026 30 27 88.9% 3
February 2026 27 27 81.5% 0
March 2026 50 49 71.4% 1
April 2026 42 42 85.7% 0
May 2026 39 39 94.9% 0
June 2026 32 31 51.6% 1
July 2026 32 31 48.4% 1

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