WN2311

WN2311 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Denver to Tucson. Of 589 departures recorded from October 2024 to July 2026, 80.4% 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
January98▼ 11.1%
February1514▼ 6.7%
March28280.0%
April2930▲ 3.4%
May3231▼ 3.1%
June3046▲ 53.3%
July3149▲ 58.1%
August27––
September26––
October26–in progress
November34––
December42––
Year to date (Jan–Jul)174206▲ 18.4%

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
January55.6%75.0%▲ 35.0%
February86.7%64.3%▼ 25.8%
March67.9%39.3%▼ 42.1%
April79.3%90.0%▲ 13.5%
May78.1%96.8%▲ 23.9%
June80.0%73.9%▼ 7.6%
July86.7%91.8%▲ 6.0%
August81.5%––
September76.9%––
October80.8%–in progress
November94.1%––
December83.3%––
Year-to-date average (Jan–Jul)76.3%75.9%▼ 0.6%

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
January00–
February00–
March00–
April00–
May00–
June00–
July10▼ 100.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)10▼ 100.0%

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 99.8% 588
  • Cancelled 0.2% 1

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

On time, leg by leg

  1. STL–RSW58 98.3%
  2. DEN–TUS58 75.9%
  3. LAS–PHX57 79.0%
  4. SJC–BUR53 75.5%
  5. MCO–IND51 88.0%
  6. LAS–OAK46 93.5%
  7. BNA–MCI42 76.2%
  8. STL–HOU33 42.4%

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 20 20 95.0% 0
November 2024 19 19 84.2% 0
December 2024 15 15 73.3% 0
January 2025 9 9 55.6% 0
February 2025 15 15 86.7% 0
March 2025 28 28 67.9% 0
April 2025 29 29 79.3% 0
May 2025 32 32 78.1% 0
June 2025 30 30 80.0% 0
July 2025 31 30 86.7% 1
August 2025 27 27 81.5% 0
September 2025 26 26 76.9% 0
October 2025 26 26 80.8% 0
November 2025 34 34 94.1% 0
December 2025 42 42 83.3% 0
January 2026 8 8 75.0% 0
February 2026 14 14 64.3% 0
March 2026 28 28 39.3% 0
April 2026 30 30 90.0% 0
May 2026 31 31 96.8% 0
June 2026 46 46 73.9% 0
July 2026 49 49 91.8% 0

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