WN2574

WN2574 (Southwest Airlines) is a multi-stop service on 22 routes, busiest Nashville to Houston. Of 565 departures recorded from October 2024 to July 2026, 79.5% 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
January288▼ 71.4%
February2411▼ 54.2%
March4812▼ 75.0%
April4023▼ 42.5%
May3425▼ 26.5%
June3222▼ 31.3%
July3128▼ 9.7%
August30––
September30––
October31–in progress
November19––
December15––
Year to date (Jan–Jul)237129▼ 45.6%

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
January80.8%75.0%▼ 7.1%
February91.7%63.6%▼ 30.6%
March83.3%90.9%▲ 9.1%
April75.0%91.3%▲ 21.7%
May91.2%100.0%▲ 9.7%
June65.6%81.8%▲ 24.7%
July54.8%82.1%▲ 49.8%
August73.3%––
September86.2%––
October80.7%–in progress
November89.5%––
December73.3%––
Year-to-date average (Jan–Jul)77.5%83.5%▲ 7.8%

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–
March01–
April00–
May00–
June00–
July00–
August0––
September1––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)21▼ 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 99.3% 561
  • Cancelled 0.7% 4

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

On time, leg by leg

  1. BNA–HOU111 77.1%
  2. DEN–LAX61 57.4%
  3. MDW–PVD49 95.9%
  4. BWI–MDW49 79.2%
  5. MDW–CMH42 95.2%
  6. AUS–DEN42 81.0%
  7. AUS–MCI36 83.3%
  8. MCO–CMH33 81.8%

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 17 17 76.5% 0
November 2024 28 28 78.6% 0
December 2024 29 29 65.5% 0
January 2025 28 26 80.8% 2
February 2025 24 24 91.7% 0
March 2025 48 48 83.3% 0
April 2025 40 40 75.0% 0
May 2025 34 34 91.2% 0
June 2025 32 32 65.6% 0
July 2025 31 31 54.8% 0
August 2025 30 30 73.3% 0
September 2025 30 29 86.2% 1
October 2025 31 31 80.7% 0
November 2025 19 19 89.5% 0
December 2025 15 15 73.3% 0
January 2026 8 8 75.0% 0
February 2026 11 11 63.6% 0
March 2026 12 11 90.9% 1
April 2026 23 23 91.3% 0
May 2026 25 25 100.0% 0
June 2026 22 22 81.8% 0
July 2026 28 28 82.1% 0

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