WN3172

WN3172 (Southwest Airlines) is a multi-stop service on 28 routes, busiest Dallas to Birmingham. Of 647 departures recorded from October 2024 to July 2026, 81.6% 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
January4824▼ 50.0%
February5427▼ 50.0%
March3570▲ 100.0%
April1045▲ 350.0%
May541▲ 720.0%
June277▼ 74.1%
July313▼ 90.3%
August23––
September22––
October5–in progress
November26––
December23––
Year to date (Jan–Jul)210217▲ 3.3%

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
January68.1%91.7%▲ 34.6%
February74.1%100.0%▲ 35.0%
March80.0%87.1%▲ 8.9%
April90.0%93.3%▲ 3.7%
May100.0%65.0%▼ 35.0%
June88.5%100.0%▲ 13.0%
July83.9%66.7%▼ 20.5%
August95.7%––
September100.0%––
October20.0%–in progress
November84.0%––
December95.7%––
Year-to-date average (Jan–Jul)83.5%86.3%▲ 3.3%

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
January10▼ 100.0%
February00–
March00–
April00–
May01–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)21▼ 50.0%

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 99.1% 641
  • Cancelled 0.9% 6

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 25, 2026

On time, leg by leg

  1. DAL–BHM78 71.4%
  2. PHX–HOU61 85.0%
  3. HOU–LGB58 84.2%
  4. PHX–MCI53 96.2%
  5. SJC–SAN46 95.6%
  6. DAL–LAS42 100.0%
  7. SNA–DAL37 88.9%
  8. PHX–CMH33 81.8%

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

Legs flown under this number

10
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 80.0% 0
November 2024 37 35 88.6% 2
December 2024 64 64 59.4% 0
January 2025 48 47 68.1% 1
February 2025 54 54 74.1% 0
March 2025 35 35 80.0% 0
April 2025 10 10 90.0% 0
May 2025 5 5 100.0% 0
June 2025 27 26 88.5% 1
July 2025 31 31 83.9% 0
August 2025 23 23 95.7% 0
September 2025 22 22 100.0% 0
October 2025 5 5 20.0% 0
November 2025 26 25 84.0% 1
December 2025 23 23 95.7% 0
January 2026 24 24 91.7% 0
February 2026 27 27 100.0% 0
March 2026 70 70 87.1% 0
April 2026 45 45 93.3% 0
May 2026 41 40 65.0% 1
June 2026 7 7 100.0% 0
July 2026 3 3 66.7% 0

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