WN4363

WN4363 (Southwest Airlines) is a multi-stop service on 24 routes, busiest Austin to Kansas City. Of 355 departures recorded from October 2024 to July 2026, 77.3% 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
January262▼ 92.3%
February401▼ 97.5%
March1619▲ 18.8%
April159▼ 40.0%
May184▼ 77.8%
June634▲ 466.7%
July441▲ 925.0%
August19––
September21––
October––in progress
November3––
December8––
Year to date (Jan–Jul)125110▼ 12.0%

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
January60.0%100.0%▲ 66.7%
February75.0%––
March81.3%57.9%▼ 28.8%
April73.3%77.8%▲ 6.1%
May22.2%75.0%▲ 237.5%
June100.0%88.2%▼ 11.8%
July100.0%85.4%▼ 14.6%
August79.0%––
September90.5%––
October––in progress
November33.3%––
December87.5%––

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%
February01–
March00–
April00–
May00–
June00–
July00–
August0––
September0––
October––in progress
November0––
December0––
Year to date (Jan–Jul)110.0%

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% 353
  • Cancelled 0.6% 2

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

On time, leg by leg

  1. AUS–MCI96 73.7%
  2. ATL–AUS49 98.0%
  3. ATL–LGA32 43.8%

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

Legs flown under this number

3
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 24 24 87.5% 0
November 2024 25 25 92.0% 0
December 2024 20 20 80.0% 0
January 2025 26 25 60.0% 1
February 2025 40 40 75.0% 0
March 2025 16 16 81.3% 0
April 2025 15 15 73.3% 0
May 2025 18 18 22.2% 0
June 2025 6 6 100.0% 0
July 2025 4 4 100.0% 0
August 2025 19 19 79.0% 0
September 2025 21 21 90.5% 0
November 2025 3 3 33.3% 0
December 2025 8 8 87.5% 0
January 2026 2 2 100.0% 0
February 2026 1 0 — 1
March 2026 19 19 57.9% 0
April 2026 9 9 77.8% 0
May 2026 4 4 75.0% 0
June 2026 34 34 88.2% 0
July 2026 41 41 85.4% 0

How to read this chart

Loading the guide…