WN2099

WN2099 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Chicago to Las Vegas. Of 687 departures recorded from October 2024 to July 2026, 78.6% 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
January2832▲ 14.3%
February2028▲ 40.0%
March3031▲ 3.3%
April3054▲ 80.0%
May3155▲ 77.4%
June4617▼ 63.0%
July479▼ 80.9%
August30––
September26––
October48–in progress
November23––
December26––
Year to date (Jan–Jul)232226▼ 2.6%

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
January96.4%100.0%▲ 3.7%
February90.0%92.6%▲ 2.9%
March65.5%83.9%▲ 28.0%
April90.0%75.9%▼ 15.6%
May83.9%48.2%▼ 42.6%
June82.2%47.1%▼ 42.8%
July65.2%55.6%▼ 14.8%
August90.0%––
September96.2%––
October64.6%–in progress
November80.0%––
December65.4%––
Year-to-date average (Jan–Jul)81.9%71.9%▼ 12.2%

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
January01–
February01–
March10▼ 100.0%
April00–
May01–
June10▼ 100.0%
July10▼ 100.0%
August0––
September0––
October0–in progress
November3––
December0––
Year to date (Jan–Jul)330.0%

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 98.7% 678
  • Cancelled 1.3% 9

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 2026

On time, leg by leg

  1. ORD–LAS92 94.6%
  2. STL–MCI58 89.7%
  3. LAS–BWI58 96.4%
  4. COS–PHX50 96.0%
  5. PHX–DEN45 74.4%
  6. AUS–PHX42 69.1%
  7. SAT–HOU42 33.3%
  8. MDW–DAL40 81.1%

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

Legs flown under this number

11
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 31 31 90.3% 0
November 2024 25 25 96.0% 0
December 2024 20 20 95.0% 0
January 2025 28 28 96.4% 0
February 2025 20 20 90.0% 0
March 2025 30 29 65.5% 1
April 2025 30 30 90.0% 0
May 2025 31 31 83.9% 0
June 2025 46 45 82.2% 1
July 2025 47 46 65.2% 1
August 2025 30 30 90.0% 0
September 2025 26 26 96.2% 0
October 2025 48 48 64.6% 0
November 2025 23 20 80.0% 3
December 2025 26 26 65.4% 0
January 2026 32 31 100.0% 1
February 2026 28 27 92.6% 1
March 2026 31 31 83.9% 0
April 2026 54 54 75.9% 0
May 2026 55 54 48.2% 1
June 2026 17 17 47.1% 0
July 2026 9 9 55.6% 0

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