WN813

WN813 (Southwest Airlines) is a multi-stop service on 31 routes, busiest Chicago to Fort Myers. Of 726 departures recorded from October 2024 to July 2026, 80.8% 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
January4836▼ 25.0%
February3736▼ 2.7%
March4524▼ 46.7%
April3128▼ 9.7%
May2631▲ 19.2%
June3430▼ 11.8%
July3531▼ 11.4%
August32––
September30––
October52–in progress
November30––
December29––
Year to date (Jan–Jul)256216▼ 15.6%

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
January93.8%94.1%▲ 0.4%
February97.3%97.2%▼ 0.1%
March95.6%91.7%▼ 4.1%
April93.6%35.7%▼ 61.8%
May96.2%22.6%▼ 76.5%
June73.5%76.7%▲ 4.3%
July65.7%87.1%▲ 32.6%
August84.4%––
September80.0%––
October80.8%–in progress
November63.3%––
December69.0%––
Year-to-date average (Jan–Jul)87.9%72.2%▼ 17.9%

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
January02–
February00–
March00–
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)02

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% 724
  • Cancelled 0.3% 2

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

On time, leg by leg

  1. MDW–RSW95 91.6%
  2. AUS–STL60 70.0%
  3. BNA–STL58 24.1%
  4. BWI–ALB53 98.1%
  5. DEN–COS52 75.0%
  6. STL–JAX50 78.0%
  7. RNO–LAS50 98.0%
  8. BUR–PHX42 92.9%

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 85.0% 0
November 2024 30 30 93.3% 0
December 2024 31 31 83.9% 0
January 2025 48 48 93.8% 0
February 2025 37 37 97.3% 0
March 2025 45 45 95.6% 0
April 2025 31 31 93.6% 0
May 2025 26 26 96.2% 0
June 2025 34 34 73.5% 0
July 2025 35 35 65.7% 0
August 2025 32 32 84.4% 0
September 2025 30 30 80.0% 0
October 2025 52 52 80.8% 0
November 2025 30 30 63.3% 0
December 2025 29 29 69.0% 0
January 2026 36 34 94.1% 2
February 2026 36 36 97.2% 0
March 2026 24 24 91.7% 0
April 2026 28 28 35.7% 0
May 2026 31 31 22.6% 0
June 2026 30 30 76.7% 0
July 2026 31 31 87.1% 0

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