WN3711

WN3711 (Southwest Airlines) is a multi-stop service on 22 routes, busiest Chicago to Kansas City. Of 448 departures recorded from October 2024 to July 2026, 65.9% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

Months without data are left blank.

The most recent periods17 periods
PeriodDepartures 2025Departures 2026Change vs last year
January440.0%
February–––
March2227▲ 22.7%
April4533▼ 26.7%
May4835▼ 27.1%
June2418▼ 25.0%
July1716▼ 5.9%
August30––
September30––
October19–in progress
November12––
December17––

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

Months without data are left blank.

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods17 periods
PeriodOn time 2025On time 2026Change vs last year
January50.0%100.0%▲ 100.0%
February–––
March77.3%76.9%▼ 0.5%
April64.4%63.6%▼ 1.2%
May41.7%57.1%▲ 37.1%
June62.5%61.1%▼ 2.2%
July70.6%80.0%▲ 13.3%
August50.0%––
September83.3%––
October100.0%–in progress
November41.7%––
December88.2%––

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods17 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February–––
March01–
April00–
May00–
June00–
July01–
August0––
September0––
October0–in progress
November0––
December0––

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 99.6% 446
  • Cancelled 0.4% 2

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026

On time, leg by leg

  1. MDW–MCI58 69.0%
  2. DEN–ATL58 46.6%
  3. BNA–MDW57 54.4%
  4. MCO–IND36 61.1%
  5. OAK–LAX35 57.1%
  6. CLE–BNA33 78.1%

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

Legs flown under this number

6
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 14 14 85.7% 0
November 2024 19 19 73.7% 0
December 2024 14 14 42.9% 0
January 2025 4 4 50.0% 0
March 2025 22 22 77.3% 0
April 2025 45 45 64.4% 0
May 2025 48 48 41.7% 0
June 2025 24 24 62.5% 0
July 2025 17 17 70.6% 0
August 2025 30 30 50.0% 0
September 2025 30 30 83.3% 0
October 2025 19 19 100.0% 0
November 2025 12 12 41.7% 0
December 2025 17 17 88.2% 0
January 2026 4 4 100.0% 0
March 2026 27 26 76.9% 1
April 2026 33 33 63.6% 0
May 2026 35 35 57.1% 0
June 2026 18 18 61.1% 0
July 2026 16 15 80.0% 1

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