WN1477

WN1477 (Southwest Airlines) is a multi-stop service on 27 routes, busiest St Louis to Fort Lauderdale. Of 666 departures recorded from October 2024 to July 2026, 81.4% 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
January31310.0%
February2821▼ 25.0%
March5819▼ 67.2%
April5728▼ 50.9%
May5830▼ 48.3%
June337▼ 78.8%
July304▼ 86.7%
August22––
September21––
October38–in progress
November41––
December32––
Year to date (Jan–Jul)295140▼ 52.5%

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
January82.8%90.0%▲ 8.7%
February92.9%81.0%▼ 12.8%
March82.8%38.9%▼ 53.0%
April89.5%66.7%▼ 25.5%
May93.1%66.7%▼ 28.4%
June90.9%42.9%▼ 52.9%
July96.7%25.0%▼ 74.1%
August50.0%––
September76.2%––
October94.7%–in progress
November68.3%––
December68.8%––
Year-to-date average (Jan–Jul)89.8%58.7%▼ 34.6%

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
January21▼ 50.0%
February00–
March01–
April01–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)23▲ 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 99.2% 661
  • Cancelled 0.8% 5

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

On time, leg by leg

  1. STL–FLL123 88.4%
  2. MDW–CHS57 66.1%
  3. MSP–MDW47 87.0%
  4. PHX–BUR42 95.2%
  5. LAS–PSP42 83.3%
  6. LAS–MCI41 65.9%
  7. BUF–PHX32 65.6%
  8. BOS–MDW31 93.6%

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 16 16 100.0% 0
November 2024 30 30 96.7% 0
December 2024 31 31 80.7% 0
January 2025 31 29 82.8% 2
February 2025 28 28 92.9% 0
March 2025 58 58 82.8% 0
April 2025 57 57 89.5% 0
May 2025 58 58 93.1% 0
June 2025 33 33 90.9% 0
July 2025 30 30 96.7% 0
August 2025 22 22 50.0% 0
September 2025 21 21 76.2% 0
October 2025 38 38 94.7% 0
November 2025 41 41 68.3% 0
December 2025 32 32 68.8% 0
January 2026 31 30 90.0% 1
February 2026 21 21 81.0% 0
March 2026 19 18 38.9% 1
April 2026 28 27 66.7% 1
May 2026 30 30 66.7% 0
June 2026 7 7 42.9% 0
July 2026 4 4 25.0% 0

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