WN411

WN411 (Southwest Airlines) is a multi-stop service on 50 routes, busiest Chicago to Fort Lauderdale. Of 871 departures recorded from October 2024 to July 2026, 73.2% 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
January3127▼ 12.9%
February3027▼ 10.0%
March2931▲ 6.9%
April4038▼ 5.0%
May4339▼ 9.3%
June3867▲ 76.3%
July4173▲ 78.0%
August41––
September42––
October45–in progress
November31––
December31––
Year to date (Jan–Jul)252302▲ 19.8%

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
January80.7%84.6%▲ 4.9%
February86.7%81.5%▼ 6.0%
March96.4%53.3%▼ 44.7%
April74.4%50.0%▼ 32.8%
May74.4%38.5%▼ 48.3%
June57.9%79.1%▲ 36.6%
July36.6%75.3%▲ 105.9%
August61.0%––
September76.2%––
October82.2%–in progress
November93.6%––
December83.9%––
Year-to-date average (Jan–Jul)72.4%66.0%▼ 8.8%

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
January01–
February00–
March110.0%
April10▼ 100.0%
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)220.0%

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 99.4% 866
  • Cancelled 0.6% 5

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

On time, leg by leg

  1. MDW–FLL75 92.0%
  2. AUS–TPA65 87.7%
  3. DEN–MCO64 87.5%
  4. BNA–ATL61 50.8%
  5. TUS–DEN57 71.9%
  6. AUS–MSY50 36.0%
  7. MDW–CMH42 80.5%
  8. AUS–ATL42 85.7%

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

Legs flown under this number

10
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 26 26 88.5% 0
November 2024 52 52 88.5% 0
December 2024 49 48 79.2% 1
January 2025 31 31 80.7% 0
February 2025 30 30 86.7% 0
March 2025 29 28 96.4% 1
April 2025 40 39 74.4% 1
May 2025 43 43 74.4% 0
June 2025 38 38 57.9% 0
July 2025 41 41 36.6% 0
August 2025 41 41 61.0% 0
September 2025 42 42 76.2% 0
October 2025 45 45 82.2% 0
November 2025 31 31 93.6% 0
December 2025 31 31 83.9% 0
January 2026 27 26 84.6% 1
February 2026 27 27 81.5% 0
March 2026 31 30 53.3% 1
April 2026 38 38 50.0% 0
May 2026 39 39 38.5% 0
June 2026 67 67 79.1% 0
July 2026 73 73 75.3% 0

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