WN3150

WN3150 (Southwest Airlines) is a multi-stop service on 19 routes, busiest Las Vegas to Chicago. Of 571 departures recorded from October 2024 to July 2026, 74.7% 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
January2628▲ 7.7%
February2418▼ 25.0%
March1430▲ 114.3%
April26260.0%
May3126▼ 16.1%
June4830▼ 37.5%
July6131▼ 49.2%
August8––
September4––
October35–in progress
November24––
December20––
Year to date (Jan–Jul)230189▼ 17.8%

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
January73.1%72.0%▼ 1.5%
February45.8%72.2%▲ 57.6%
March78.6%86.7%▲ 10.3%
April92.3%73.1%▼ 20.8%
May100.0%53.9%▼ 46.2%
June56.3%93.3%▲ 65.9%
July59.0%96.8%▲ 64.0%
August75.0%––
September100.0%––
October97.1%–in progress
November50.0%––
December65.0%––
Year-to-date average (Jan–Jul)72.2%78.3%▲ 8.5%

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
January03–
February00–
March00–
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)03

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 99.5% 568
  • Cancelled 0.5% 3

Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026

On time, leg by leg

  1. LAS–MDW97 68.0%
  2. AUS–BNA60 48.3%
  3. ONT–LAS59 94.9%
  4. OGG–HNL58 93.1%
  5. MDW–DCA50 64.0%
  6. DEN–BWI47 75.0%
  7. LAS–DEN46 54.4%
  8. HOU–ELP32 87.5%

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

Legs flown under this number

8
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 16 16 87.5% 0
November 2024 25 25 80.0% 0
December 2024 20 20 70.0% 0
January 2025 26 26 73.1% 0
February 2025 24 24 45.8% 0
March 2025 14 14 78.6% 0
April 2025 26 26 92.3% 0
May 2025 31 31 100.0% 0
June 2025 48 48 56.3% 0
July 2025 61 61 59.0% 0
August 2025 8 8 75.0% 0
September 2025 4 4 100.0% 0
October 2025 35 35 97.1% 0
November 2025 24 24 50.0% 0
December 2025 20 20 65.0% 0
January 2026 28 25 72.0% 3
February 2026 18 18 72.2% 0
March 2026 30 30 86.7% 0
April 2026 26 26 73.1% 0
May 2026 26 26 53.9% 0
June 2026 30 30 93.3% 0
July 2026 31 31 96.8% 0

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