WN1888

WN1888 (Southwest Airlines) is a multi-stop service on 38 routes, busiest Chicago to Dallas. Of 703 departures recorded from October 2024 to July 2026, 71.6% 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
January3432▼ 5.9%
February2827▼ 3.6%
March3831▼ 18.4%
April5930▼ 49.2%
May7231▼ 56.9%
June257▼ 72.0%
July235▼ 78.3%
August29––
September30––
October26–in progress
November38––
December48––
Year to date (Jan–Jul)279163▼ 41.6%

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
January81.8%84.4%▲ 3.1%
February78.6%70.4%▼ 10.4%
March68.4%54.8%▼ 19.8%
April84.8%76.7%▼ 9.5%
May80.3%80.7%▲ 0.5%
June76.0%57.1%▼ 24.8%
July50.0%40.0%▼ 20.0%
August37.9%––
September46.7%––
October80.8%–in progress
November58.3%––
December66.7%––
Year-to-date average (Jan–Jul)74.3%66.3%▼ 10.7%

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–
May10▼ 100.0%
June00–
July10▼ 100.0%
August0––
September0––
October0–in progress
November2––
December0––
Year to date (Jan–Jul)30▼ 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 99.1% 697
  • Cancelled 0.9% 6

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

On time, leg by leg

  1. MDW–DAL75 77.0%
  2. LGA–DEN58 43.1%
  3. HOU–LAS53 75.5%
  4. BWI–CLE50 86.0%
  5. BWI–PWM43 57.1%
  6. TPA–BWI42 95.2%
  7. ATL–DEN40 87.2%
  8. PHX–LGB33 63.6%

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 27 27 88.9% 0
November 2024 31 30 83.3% 1
December 2024 32 32 68.8% 0
January 2025 34 33 81.8% 1
February 2025 28 28 78.6% 0
March 2025 38 38 68.4% 0
April 2025 59 59 84.8% 0
May 2025 72 71 80.3% 1
June 2025 25 25 76.0% 0
July 2025 23 22 50.0% 1
August 2025 29 29 37.9% 0
September 2025 30 30 46.7% 0
October 2025 26 26 80.8% 0
November 2025 38 36 58.3% 2
December 2025 48 48 66.7% 0
January 2026 32 32 84.4% 0
February 2026 27 27 70.4% 0
March 2026 31 31 54.8% 0
April 2026 30 30 76.7% 0
May 2026 31 31 80.7% 0
June 2026 7 7 57.1% 0
July 2026 5 5 40.0% 0

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