WN1040

WN1040 (Southwest Airlines) is a multi-stop service on 39 routes, busiest Las Vegas to Dallas. Of 791 departures recorded from October 2024 to July 2026, 76.7% 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
January3331▼ 6.1%
February28280.0%
March3139▲ 25.8%
April3832▼ 15.8%
May3831▼ 18.4%
June5041▼ 18.0%
July5344▼ 17.0%
August33––
September30––
October56–in progress
November28––
December29––
Year to date (Jan–Jul)271246▼ 9.2%

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%83.9%▼ 10.5%
February89.3%63.0%▼ 29.5%
March100.0%64.1%▼ 35.9%
April83.8%59.4%▼ 29.1%
May100.0%38.7%▼ 61.3%
June94.0%43.9%▼ 53.3%
July86.3%23.7%▼ 72.6%
August90.6%––
September93.3%––
October80.4%–in progress
November78.6%––
December71.4%––
Year-to-date average (Jan–Jul)92.4%53.8%▼ 41.8%

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
January10▼ 100.0%
February01–
March00–
April10▼ 100.0%
May30▼ 100.0%
June00–
July26▲ 200.0%
August1––
September0––
October0–in progress
November0––
December1––
Year to date (Jan–Jul)770.0%

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 98.0% 775
  • Cancelled 2.0% 16

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

On time, leg by leg

  1. LAS–DAL60 96.5%
  2. BWI–ORF58 34.0%
  3. BWI–AUS58 46.6%
  4. CMH–BNA57 94.7%
  5. PHX–SNA56 78.6%
  6. MCO–DAL49 95.7%
  7. RDU–BNA42 69.1%
  8. RSW–MDW33 93.8%

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 17 17 88.2% 0
November 2024 36 36 83.3% 0
December 2024 45 45 80.0% 0
January 2025 33 32 93.8% 1
February 2025 28 28 89.3% 0
March 2025 31 31 100.0% 0
April 2025 38 37 83.8% 1
May 2025 38 35 100.0% 3
June 2025 50 50 94.0% 0
July 2025 53 51 86.3% 2
August 2025 33 32 90.6% 1
September 2025 30 30 93.3% 0
October 2025 56 56 80.4% 0
November 2025 28 28 78.6% 0
December 2025 29 28 71.4% 1
January 2026 31 31 83.9% 0
February 2026 28 27 63.0% 1
March 2026 39 39 64.1% 0
April 2026 32 32 59.4% 0
May 2026 31 31 38.7% 0
June 2026 41 41 43.9% 0
July 2026 44 38 23.7% 6

How to read this chart

Loading the guide…