WN859

WN859 (Southwest Airlines) is a multi-stop service on 46 routes, busiest Austin to Los Angeles. Of 785 departures recorded from October 2024 to July 2026, 82.0% 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
January3035▲ 16.7%
February3429▼ 14.7%
March3855▲ 44.7%
April3236▲ 12.5%
May3031▲ 3.3%
June4237▼ 11.9%
July4340▼ 7.0%
August30––
September26––
October31–in progress
November30––
December31––
Year to date (Jan–Jul)249263▲ 5.6%

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
January96.7%82.4%▼ 14.8%
February91.2%79.3%▼ 13.0%
March91.9%66.7%▼ 27.4%
April93.8%83.3%▼ 11.1%
May96.7%90.3%▼ 6.6%
June70.7%67.6%▼ 4.5%
July79.1%60.0%▼ 24.1%
August83.3%––
September84.6%––
October71.0%–in progress
November76.7%––
December74.2%––
Year-to-date average (Jan–Jul)88.6%75.6%▼ 14.6%

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
January01–
February00–
March110.0%
April00–
May00–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)220.0%

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% 781
  • 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. AUS–LAX91 97.8%
  2. BNA–CMH64 75.0%
  3. GEG–DEN57 70.2%
  4. BWI–FLL57 96.5%
  5. LGB–SMF43 88.1%
  6. SAT–BNA33 62.5%
  7. BNA–OMA33 90.6%
  8. AUS–FLL32 90.6%

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

Legs flown under this number

9
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 28 28 96.4% 0
November 2024 53 53 96.2% 0
December 2024 44 44 84.1% 0
January 2025 30 30 96.7% 0
February 2025 34 34 91.2% 0
March 2025 38 37 91.9% 1
April 2025 32 32 93.8% 0
May 2025 30 30 96.7% 0
June 2025 42 41 70.7% 1
July 2025 43 43 79.1% 0
August 2025 30 30 83.3% 0
September 2025 26 26 84.6% 0
October 2025 31 31 71.0% 0
November 2025 30 30 76.7% 0
December 2025 31 31 74.2% 0
January 2026 35 34 82.4% 1
February 2026 29 29 79.3% 0
March 2026 55 54 66.7% 1
April 2026 36 36 83.3% 0
May 2026 31 31 90.3% 0
June 2026 37 37 67.6% 0
July 2026 40 40 60.0% 0

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