WN2178

WN2178 (Southwest Airlines) is a multi-stop service on 34 routes, busiest San Diego to San Antonio. Of 782 departures recorded from October 2024 to July 2026, 77.9% 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
January3512▼ 65.7%
February2619▼ 26.9%
March4331▼ 27.9%
April3040▲ 33.3%
May2744▲ 63.0%
June2259▲ 168.2%
July2263▲ 186.4%
August44––
September48––
October27–in progress
November23––
December26––
Year to date (Jan–Jul)205268▲ 30.7%

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
January79.4%91.7%▲ 15.4%
February80.8%89.5%▲ 10.8%
March90.7%35.5%▼ 60.9%
April90.0%60.0%▼ 33.3%
May92.6%77.3%▼ 16.5%
June81.8%84.8%▲ 3.6%
July61.9%81.0%▲ 30.8%
August75.0%––
September71.7%––
October88.9%–in progress
November100.0%––
December88.5%––
Year-to-date average (Jan–Jul)82.5%74.2%▼ 10.0%

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–
May00–
June00–
July10▼ 100.0%
August0––
September2––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)20▼ 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 99.5% 778
  • 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. SAN–SAT57 70.2%
  2. SAN–PHX54 73.1%
  3. STL–OKC50 90.0%
  4. SFO–SAN48 91.7%
  5. MDW–OKC42 70.7%
  6. SAT–ATL41 82.5%
  7. SNA–SJC35 94.3%
  8. LAS–LBB34 85.3%

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 14 14 64.3% 0
November 2024 59 59 78.0% 0
December 2024 68 68 69.1% 0
January 2025 35 34 79.4% 1
February 2025 26 26 80.8% 0
March 2025 43 43 90.7% 0
April 2025 30 30 90.0% 0
May 2025 27 27 92.6% 0
June 2025 22 22 81.8% 0
July 2025 22 21 61.9% 1
August 2025 44 44 75.0% 0
September 2025 48 46 71.7% 2
October 2025 27 27 88.9% 0
November 2025 23 23 100.0% 0
December 2025 26 26 88.5% 0
January 2026 12 12 91.7% 0
February 2026 19 19 89.5% 0
March 2026 31 31 35.5% 0
April 2026 40 40 60.0% 0
May 2026 44 44 77.3% 0
June 2026 59 59 84.8% 0
July 2026 63 63 81.0% 0

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