WN1861

WN1861 (Southwest Airlines) is a multi-stop service on 31 routes, busiest Austin to Phoenix. Of 735 departures recorded from October 2024 to July 2026, 80.4% 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%
February2625▼ 3.8%
March2120▼ 4.8%
April3928▼ 28.2%
May5031▼ 38.0%
June3130▼ 3.2%
July31310.0%
August42––
September43––
October31–in progress
November51––
December47––
Year to date (Jan–Jul)226198▼ 12.4%

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
January85.7%93.9%▲ 9.6%
February84.6%68.0%▼ 19.6%
March90.5%80.0%▼ 11.6%
April76.9%82.1%▲ 6.8%
May52.0%71.0%▲ 36.5%
June83.9%73.3%▼ 12.6%
July80.7%93.6%▲ 16.0%
August90.5%––
September90.7%––
October90.3%–in progress
November72.6%––
December70.2%––
Year-to-date average (Jan–Jul)79.2%80.3%▲ 1.4%

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–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)00

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 99.9% 734
  • Cancelled 0.1% 1

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

On time, leg by leg

  1. AUS–PHX71 84.5%
  2. HOU–DEN58 79.3%
  3. FLL–HOU58 84.5%
  4. DEN–EUG57 75.4%
  5. BWI–PHX52 76.9%
  6. HOU–LAX50 72.0%
  7. PHX–ELP40 77.5%
  8. ATL–HOU40 55.0%

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 26 26 84.6% 0
November 2024 40 40 87.5% 0
December 2024 31 30 86.7% 1
January 2025 28 28 85.7% 0
February 2025 26 26 84.6% 0
March 2025 21 21 90.5% 0
April 2025 39 39 76.9% 0
May 2025 50 50 52.0% 0
June 2025 31 31 83.9% 0
July 2025 31 31 80.7% 0
August 2025 42 42 90.5% 0
September 2025 43 43 90.7% 0
October 2025 31 31 90.3% 0
November 2025 51 51 72.6% 0
December 2025 47 47 70.2% 0
January 2026 33 33 93.9% 0
February 2026 25 25 68.0% 0
March 2026 20 20 80.0% 0
April 2026 28 28 82.1% 0
May 2026 31 31 71.0% 0
June 2026 30 30 73.3% 0
July 2026 31 31 93.6% 0

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