WN1183

WN1183 (Southwest Airlines) is a multi-stop service on 35 routes, busiest Valparaiso to Nashville. Of 752 departures recorded from October 2024 to July 2026, 77.0% 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
January3549▲ 40.0%
February2837▲ 32.1%
March3148▲ 54.8%
April2233▲ 50.0%
May2331▲ 34.8%
June2040▲ 100.0%
July2242▲ 90.9%
August26––
September26––
October22–in progress
November54––
December39––
Year to date (Jan–Jul)181280▲ 54.7%

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
January78.8%84.8%▲ 7.6%
February92.9%88.9%▼ 4.3%
March87.1%63.0%▼ 27.6%
April72.7%63.6%▼ 12.5%
May87.0%45.2%▼ 48.1%
June47.4%67.5%▲ 42.5%
July45.5%67.5%▲ 48.5%
August84.6%––
September92.3%––
October66.7%–in progress
November81.5%––
December82.1%––
Year-to-date average (Jan–Jul)73.0%68.6%▼ 6.0%

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
January23▲ 50.0%
February01–
March02–
April00–
May00–
June10▼ 100.0%
July02–
August0––
September0––
October1–in progress
November0––
December0––
Year to date (Jan–Jul)38▲ 166.7%

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 98.3% 739
  • Cancelled 1.7% 13

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

On time, leg by leg

  1. VPS–BNA123 94.2%
  2. STL–PHX58 50.0%
  3. DAL–AUS58 83.6%
  4. SMF–BUR40 85.0%
  5. PHX–SAN40 61.5%
  6. LAS–TUL33 78.8%
  7. BNA–MSY32 96.9%

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 14 14 100.0% 0
November 2024 48 48 93.8% 0
December 2024 62 61 83.6% 1
January 2025 35 33 78.8% 2
February 2025 28 28 92.9% 0
March 2025 31 31 87.1% 0
April 2025 22 22 72.7% 0
May 2025 23 23 87.0% 0
June 2025 20 19 47.4% 1
July 2025 22 22 45.5% 0
August 2025 26 26 84.6% 0
September 2025 26 26 92.3% 0
October 2025 22 21 66.7% 1
November 2025 54 54 81.5% 0
December 2025 39 39 82.1% 0
January 2026 49 46 84.8% 3
February 2026 37 36 88.9% 1
March 2026 48 46 63.0% 2
April 2026 33 33 63.6% 0
May 2026 31 31 45.2% 0
June 2026 40 40 67.5% 0
July 2026 42 40 67.5% 2

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