WN509

WN509 (Southwest Airlines) is a multi-stop service on 45 routes, busiest Orlando to Nashville. Of 715 departures recorded from October 2024 to July 2026, 72.9% 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
January3231▼ 3.1%
February3224▼ 25.0%
March3926▼ 33.3%
April3248▲ 50.0%
May3252▲ 62.5%
June4622▼ 52.2%
July5517▼ 69.1%
August32––
September30––
October35–in progress
November23––
December19––
Year to date (Jan–Jul)268220▼ 17.9%

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
January90.6%90.3%▼ 0.3%
February84.4%87.5%▲ 3.7%
March82.1%57.7%▼ 29.7%
April90.6%89.6%▼ 1.2%
May84.4%78.9%▼ 6.6%
June37.0%54.6%▲ 47.6%
July51.9%18.8%▼ 63.8%
August81.3%––
September93.3%––
October60.0%–in progress
November69.6%––
December47.4%––
Year-to-date average (Jan–Jul)74.4%68.2%▼ 8.4%

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
January00–
February00–
March00–
April00–
May00–
June00–
July110.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)110.0%

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 99.7% 713
  • Cancelled 0.3% 2

Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 29, 2026

On time, leg by leg

  1. MCO–BNA61 45.9%
  2. PVD–BWI58 89.7%
  3. MCI–DEN50 86.0%
  4. DEN–LIT50 86.0%
  5. AUS–CMH50 96.0%
  6. DEN–LAX40 57.5%
  7. HOU–ATL33 93.9%
  8. BNA–DTW31 30.0%

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 60.0% 0
November 2024 33 33 90.9% 0
December 2024 35 35 74.3% 0
January 2025 32 32 90.6% 0
February 2025 32 32 84.4% 0
March 2025 39 39 82.1% 0
April 2025 32 32 90.6% 0
May 2025 32 32 84.4% 0
June 2025 46 46 37.0% 0
July 2025 55 54 51.9% 1
August 2025 32 32 81.3% 0
September 2025 30 30 93.3% 0
October 2025 35 35 60.0% 0
November 2025 23 23 69.6% 0
December 2025 19 19 47.4% 0
January 2026 31 31 90.3% 0
February 2026 24 24 87.5% 0
March 2026 26 26 57.7% 0
April 2026 48 48 89.6% 0
May 2026 52 52 78.9% 0
June 2026 22 22 54.6% 0
July 2026 17 16 18.8% 1

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