WN1689

WN1689 (Southwest Airlines) is a multi-stop service on 35 routes, busiest Atlanta to Chicago. Of 598 departures recorded from October 2024 to July 2026, 72.6% 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
January249▼ 62.5%
February3911▼ 71.8%
March3121▼ 32.3%
April3032▲ 6.7%
May3036▲ 20.0%
June14140.0%
July14140.0%
August28––
September30––
October69–in progress
November30––
December31––
Year to date (Jan–Jul)182137▼ 24.7%

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
January87.5%44.4%▼ 49.2%
February64.1%72.7%▲ 13.5%
March80.7%42.1%▼ 47.8%
April86.7%77.4%▼ 10.7%
May62.1%69.4%▲ 11.9%
June78.6%28.6%▼ 63.6%
July78.6%28.6%▼ 63.6%
August74.1%––
September73.3%––
October72.1%–in progress
November73.3%––
December58.1%––
Year-to-date average (Jan–Jul)76.9%51.9%▼ 32.5%

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–
March02–
April01–
May10▼ 100.0%
June00–
July00–
August1––
September0––
October1–in progress
November0––
December0––
Year to date (Jan–Jul)13▲ 200.0%

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 99.0% 592
  • Cancelled 1.0% 6

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026

On time, leg by leg

  1. ATL–MDW58 73.7%
  2. IND–LAS42 64.3%
  3. AUS–PHX42 80.5%
  4. MDW–MYR33 69.7%
  5. DAL–SAT33 87.9%
  6. BUR–BNA33 97.0%

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

Legs flown under this number

6
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 19 19 94.7% 0
November 2024 40 40 92.5% 0
December 2024 32 32 93.8% 0
January 2025 24 24 87.5% 0
February 2025 39 39 64.1% 0
March 2025 31 31 80.7% 0
April 2025 30 30 86.7% 0
May 2025 30 29 62.1% 1
June 2025 14 14 78.6% 0
July 2025 14 14 78.6% 0
August 2025 28 27 74.1% 1
September 2025 30 30 73.3% 0
October 2025 69 68 72.1% 1
November 2025 30 30 73.3% 0
December 2025 31 31 58.1% 0
January 2026 9 9 44.4% 0
February 2026 11 11 72.7% 0
March 2026 21 19 42.1% 2
April 2026 32 31 77.4% 1
May 2026 36 36 69.4% 0
June 2026 14 14 28.6% 0
July 2026 14 14 28.6% 0

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