WN684

WN684 (Southwest Airlines) is a multi-stop service on 31 routes, busiest Tucson to Chicago. Of 790 departures recorded from October 2024 to July 2026, 80.1% 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
January3233▲ 3.1%
February28280.0%
March31310.0%
April3040▲ 33.3%
May3144▲ 41.9%
June1869▲ 283.3%
July1877▲ 327.8%
August31––
September34––
October35–in progress
November41––
December54––
Year to date (Jan–Jul)188322▲ 71.3%

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
January96.9%66.7%▼ 31.2%
February96.4%75.0%▼ 22.2%
March83.9%90.3%▲ 7.7%
April93.3%62.5%▼ 33.0%
May100.0%50.0%▼ 50.0%
June88.9%86.8%▼ 2.4%
July88.9%84.4%▼ 5.0%
August77.4%––
September73.5%––
October80.0%–in progress
November73.2%––
December55.8%––
Year-to-date average (Jan–Jul)92.6%73.7%▼ 20.5%

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–
March00–
April00–
May10▼ 100.0%
June01–
July00–
August0––
September0––
October0–in progress
November0––
December2––
Year to date (Jan–Jul)110.0%

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 99.4% 785
  • Cancelled 0.6% 5

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

On time, leg by leg

  1. TUS–MDW117 94.8%
  2. LAS–BWI70 40.6%
  3. BWI–ISP64 57.1%
  4. ITO–HNL58 100.0%
  5. PHX–MCI47 70.2%
  6. RDU–BNA42 92.9%
  7. MCO–RDU42 92.9%
  8. BNA–TPA41 67.5%

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 32 32 90.6% 0
December 2024 33 32 87.5% 1
January 2025 32 32 96.9% 0
February 2025 28 28 96.4% 0
March 2025 31 31 83.9% 0
April 2025 30 30 93.3% 0
May 2025 31 30 100.0% 1
June 2025 18 18 88.9% 0
July 2025 18 18 88.9% 0
August 2025 31 31 77.4% 0
September 2025 34 34 73.5% 0
October 2025 35 35 80.0% 0
November 2025 41 41 73.2% 0
December 2025 54 52 55.8% 2
January 2026 33 33 66.7% 0
February 2026 28 28 75.0% 0
March 2026 31 31 90.3% 0
April 2026 40 40 62.5% 0
May 2026 44 44 50.0% 0
June 2026 69 68 86.8% 1
July 2026 77 77 84.4% 0

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