WN1274

WN1274 (Southwest Airlines) is a multi-stop service on 29 routes, busiest Las Vegas to Houston. Of 729 departures recorded from October 2024 to July 2026, 68.6% 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
January3126▼ 16.1%
February2820▼ 28.6%
March3173▲ 135.5%
April3064▲ 113.3%
May3163▲ 103.2%
June4210▼ 76.2%
July434▼ 90.7%
August28––
September26––
October43–in progress
November29––
December30––
Year to date (Jan–Jul)236260▲ 10.2%

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
January75.9%92.3%▲ 21.7%
February60.7%65.0%▲ 7.1%
March74.2%76.7%▲ 3.4%
April83.3%92.1%▲ 10.5%
May66.7%82.5%▲ 23.8%
June42.9%70.0%▲ 63.3%
July33.3%50.0%▲ 50.0%
August35.7%––
September19.2%––
October62.8%–in progress
November69.0%––
December79.3%––
Year-to-date average (Jan–Jul)62.4%75.5%▲ 21.0%

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
January20▼ 100.0%
February00–
March00–
April01–
May10▼ 100.0%
June00–
July10▼ 100.0%
August0––
September0––
October0–in progress
November0––
December1––
Year to date (Jan–Jul)41▼ 75.0%

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 99.2% 723
  • Cancelled 0.8% 6

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

On time, leg by leg

  1. LAS–HOU117 69.6%
  2. DEN–IND103 77.5%
  3. MDW–PHL51 34.0%
  4. DAL–BWI50 85.7%
  5. ATL–MDW36 41.7%
  6. PHX–SJC33 69.7%
  7. BWI–CLT33 81.8%
  8. MCO–DEN31 77.4%

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 20 20 95.0% 0
November 2024 28 28 78.6% 0
December 2024 29 29 65.5% 0
January 2025 31 29 75.9% 2
February 2025 28 28 60.7% 0
March 2025 31 31 74.2% 0
April 2025 30 30 83.3% 0
May 2025 31 30 66.7% 1
June 2025 42 42 42.9% 0
July 2025 43 42 33.3% 1
August 2025 28 28 35.7% 0
September 2025 26 26 19.2% 0
October 2025 43 43 62.8% 0
November 2025 29 29 69.0% 0
December 2025 30 29 79.3% 1
January 2026 26 26 92.3% 0
February 2026 20 20 65.0% 0
March 2026 73 73 76.7% 0
April 2026 64 63 92.1% 1
May 2026 63 63 82.5% 0
June 2026 10 10 70.0% 0
July 2026 4 4 50.0% 0

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