WN1226

WN1226 (Southwest Airlines) is a multi-stop service on 31 routes, busiest Denver to Bozeman. Of 590 departures recorded from October 2024 to July 2026, 76.3% 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
January2917▼ 41.4%
February2622▼ 15.4%
March2729▲ 7.4%
April2930▲ 3.4%
May31310.0%
June307▼ 76.7%
July315▼ 83.9%
August27––
September26––
October26–in progress
November33––
December42––
Year to date (Jan–Jul)203141▼ 30.5%

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
January89.7%68.8%▼ 23.3%
February65.4%54.6%▼ 16.6%
March88.5%44.4%▼ 49.8%
April96.6%70.0%▼ 27.5%
May96.8%80.7%▼ 16.7%
June70.0%57.1%▼ 18.4%
July64.5%60.0%▼ 7.0%
August92.6%––
September96.2%––
October50.0%–in progress
November78.8%––
December66.7%––
Year-to-date average (Jan–Jul)81.6%62.2%▼ 23.8%

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
January01–
February00–
March12▲ 100.0%
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)13▲ 200.0%

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 99.3% 586
  • Cancelled 0.7% 4

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

On time, leg by leg

  1. DEN–BZN61 65.6%
  2. DAL–MDW58 96.6%
  3. BWI–MSY57 77.2%
  4. MCI–MDW46 87.0%
  5. SNA–LAS41 78.1%
  6. MCO–PHX33 45.2%

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

Legs flown under this number

6
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 60.0% 0
November 2024 28 28 92.9% 0
December 2024 44 44 88.6% 0
January 2025 29 29 89.7% 0
February 2025 26 26 65.4% 0
March 2025 27 26 88.5% 1
April 2025 29 29 96.6% 0
May 2025 31 31 96.8% 0
June 2025 30 30 70.0% 0
July 2025 31 31 64.5% 0
August 2025 27 27 92.6% 0
September 2025 26 26 96.2% 0
October 2025 26 26 50.0% 0
November 2025 33 33 78.8% 0
December 2025 42 42 66.7% 0
January 2026 17 16 68.8% 1
February 2026 22 22 54.6% 0
March 2026 29 27 44.4% 2
April 2026 30 30 70.0% 0
May 2026 31 31 80.7% 0
June 2026 7 7 57.1% 0
July 2026 5 5 60.0% 0

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