WN3771

WN3771 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Chicago to Fort Myers. Of 497 departures recorded from October 2024 to July 2026, 75.1% 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 periods18 periods
PeriodDepartures 2025Departures 2026Change vs last year
January206▼ 70.0%
February19––
March3623▼ 36.1%
April3826▼ 31.6%
May4126▼ 36.6%
June3010▼ 66.7%
July319▼ 71.0%
August30––
September30––
October39–in progress
November31––
December33––

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 periods18 periods
PeriodOn time 2025On time 2026Change vs last year
January84.2%66.7%▼ 20.8%
February73.7%––
March91.7%85.7%▼ 6.5%
April86.8%84.6%▼ 2.6%
May61.0%53.9%▼ 11.7%
June66.7%90.0%▲ 35.0%
July77.4%88.9%▲ 14.8%
August70.0%––
September66.7%––
October69.2%–in progress
November86.7%––
December66.7%––

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 periods18 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January10▼ 100.0%
February0––
March02–
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November1––
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 99.2% 493
  • Cancelled 0.8% 4

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

On time, leg by leg

  1. MDW–RSW64 74.6%
  2. MCO–STL61 70.5%
  3. MDW–STL57 70.2%
  4. PHX–COS50 68.0%
  5. LAS–OAK50 74.0%
  6. LGB–DAL33 93.9%
  7. DEN–SNA31 64.5%

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

Legs flown under this number

7
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 4 4 100.0% 0
November 2024 5 5 60.0% 0
December 2024 10 10 70.0% 0
January 2025 20 19 84.2% 1
February 2025 19 19 73.7% 0
March 2025 36 36 91.7% 0
April 2025 38 38 86.8% 0
May 2025 41 41 61.0% 0
June 2025 30 30 66.7% 0
July 2025 31 31 77.4% 0
August 2025 30 30 70.0% 0
September 2025 30 30 66.7% 0
October 2025 39 39 69.2% 0
November 2025 31 30 86.7% 1
December 2025 33 33 66.7% 0
January 2026 6 6 66.7% 0
March 2026 23 21 85.7% 2
April 2026 26 26 84.6% 0
May 2026 26 26 53.9% 0
June 2026 10 10 90.0% 0
July 2026 9 9 88.9% 0

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