WN1219

WN1219 (Southwest Airlines) is a multi-stop service on 40 routes, busiest Chicago to Phoenix. Of 814 departures recorded from October 2024 to July 2026, 74.1% 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
January4616▼ 65.2%
February3716▼ 56.8%
March3329▼ 12.1%
April5283▲ 59.6%
May68100▲ 47.1%
June28280.0%
July2722▼ 18.5%
August26––
September26––
October32–in progress
November56––
December37––
Year to date (Jan–Jul)291294▲ 1.0%

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
January80.4%87.5%▲ 8.8%
February75.7%68.8%▼ 9.2%
March93.9%93.1%▼ 0.9%
April71.2%71.1%▼ 0.1%
May86.8%71.0%▼ 18.2%
June42.9%60.7%▲ 41.6%
July34.6%40.9%▲ 18.2%
August80.8%––
September96.2%––
October71.9%–in progress
November62.5%––
December81.1%––
Year-to-date average (Jan–Jul)69.3%70.4%▲ 1.6%

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 99.5% 810
  • Cancelled 0.5% 4

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

On time, leg by leg

  1. MDW–PHX53 86.8%
  2. BWI–BOS52 31.4%
  3. TPA–BNA50 92.0%
  4. MCI–DEN50 72.0%
  5. MCI–BNA42 85.7%
  6. BNA–MSY36 69.4%
  7. BOI–SAN33 97.0%
  8. SLC–DAL32 93.8%

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 14 11 63.6% 3
November 2024 14 14 100.0% 0
December 2024 24 24 100.0% 0
January 2025 46 46 80.4% 0
February 2025 37 37 75.7% 0
March 2025 33 33 93.9% 0
April 2025 52 52 71.2% 0
May 2025 68 68 86.8% 0
June 2025 28 28 42.9% 0
July 2025 27 26 34.6% 1
August 2025 26 26 80.8% 0
September 2025 26 26 96.2% 0
October 2025 32 32 71.9% 0
November 2025 56 56 62.5% 0
December 2025 37 37 81.1% 0
January 2026 16 16 87.5% 0
February 2026 16 16 68.8% 0
March 2026 29 29 93.1% 0
April 2026 83 83 71.1% 0
May 2026 100 100 71.0% 0
June 2026 28 28 60.7% 0
July 2026 22 22 40.9% 0

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