WN1843

WN1843 (Southwest Airlines) is a multi-stop service on 31 routes, busiest Milwaukee to Dallas. Of 779 departures recorded from October 2024 to July 2026, 75.8% 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
January2833▲ 17.9%
February3135▲ 12.9%
March3520▼ 42.9%
April3127▼ 12.9%
May31310.0%
June3841▲ 7.9%
July4043▲ 7.5%
August54––
September56––
October43–in progress
November38––
December45––
Year to date (Jan–Jul)234230▼ 1.7%

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
January84.6%84.4%▼ 0.3%
February93.3%91.4%▼ 2.0%
March71.4%68.4%▼ 4.2%
April83.9%96.3%▲ 14.8%
May67.7%90.3%▲ 33.3%
June64.9%34.2%▼ 47.3%
July77.5%20.9%▼ 73.0%
August63.0%––
September87.5%––
October86.1%–in progress
November94.7%––
December77.3%––
Year-to-date average (Jan–Jul)77.6%69.4%▼ 10.6%

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
January21▼ 50.0%
February10▼ 100.0%
March01–
April00–
May00–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November0––
December1––
Year to date (Jan–Jul)42▼ 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% 772
  • Cancelled 0.9% 7

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

On time, leg by leg

  1. MKE–DAL73 90.1%
  2. CHS–BWI59 82.8%
  3. SAN–ABQ58 94.8%
  4. RSW–MKE58 75.9%
  5. DEN–OAK57 24.6%
  6. MDW–MCI55 90.7%
  7. PVD–BWI51 80.0%
  8. SAN–DEN42 83.3%

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 20 100.0% 0
November 2024 29 29 86.2% 0
December 2024 30 30 80.0% 0
January 2025 28 26 84.6% 2
February 2025 31 30 93.3% 1
March 2025 35 35 71.4% 0
April 2025 31 31 83.9% 0
May 2025 31 31 67.7% 0
June 2025 38 37 64.9% 1
July 2025 40 40 77.5% 0
August 2025 54 54 63.0% 0
September 2025 56 56 87.5% 0
October 2025 43 43 86.1% 0
November 2025 38 38 94.7% 0
December 2025 45 44 77.3% 1
January 2026 33 32 84.4% 1
February 2026 35 35 91.4% 0
March 2026 20 19 68.4% 1
April 2026 27 27 96.3% 0
May 2026 31 31 90.3% 0
June 2026 41 41 34.2% 0
July 2026 43 43 20.9% 0

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