WN1778

WN1778 (Southwest Airlines) is a multi-stop service on 24 routes, busiest San Antonio to Dallas. Of 696 departures recorded from October 2024 to July 2026, 75.3% 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
January2815▼ 46.4%
February2819▼ 32.1%
March3129▼ 6.5%
April4539▼ 13.3%
May5544▼ 20.0%
June2731▲ 14.8%
July2731▲ 14.8%
August30––
September30––
October52–in progress
November42––
December35––
Year to date (Jan–Jul)241208▼ 13.7%

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
January88.0%80.0%▼ 9.1%
February92.9%68.4%▼ 26.3%
March80.7%67.9%▼ 15.9%
April86.1%39.5%▼ 54.1%
May87.3%7.0%▼ 92.0%
June66.7%74.2%▲ 11.3%
July56.0%93.6%▲ 67.1%
August93.3%––
September100.0%––
October92.2%–in progress
November73.2%––
December77.1%––
Year-to-date average (Jan–Jul)79.6%61.5%▼ 22.8%

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
January30▼ 100.0%
February00–
March01–
April21▼ 50.0%
May01–
June00–
July20▼ 100.0%
August0––
September0––
October1–in progress
November1––
December0––
Year to date (Jan–Jul)73▼ 57.1%

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 98.3% 684
  • Cancelled 1.7% 12

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

On time, leg by leg

  1. SAT–DAL94 72.2%
  2. MSY–DEN93 92.2%
  3. LAS–MDW59 74.1%
  4. DTW–DEN58 89.7%
  5. CVG–BWI58 100.0%
  6. DAL–BNA49 23.4%
  7. LAX–LAS33 75.8%
  8. BWI–SRQ33 71.9%

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

Legs flown under this number

11
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 23 23 69.6% 0
November 2024 21 21 100.0% 0
December 2024 14 14 85.7% 0
January 2025 28 25 88.0% 3
February 2025 28 28 92.9% 0
March 2025 31 31 80.7% 0
April 2025 45 43 86.1% 2
May 2025 55 55 87.3% 0
June 2025 27 27 66.7% 0
July 2025 27 25 56.0% 2
August 2025 30 30 93.3% 0
September 2025 30 30 100.0% 0
October 2025 52 51 92.2% 1
November 2025 42 41 73.2% 1
December 2025 35 35 77.1% 0
January 2026 15 15 80.0% 0
February 2026 19 19 68.4% 0
March 2026 29 28 67.9% 1
April 2026 39 38 39.5% 1
May 2026 44 43 7.0% 1
June 2026 31 31 74.2% 0
July 2026 31 31 93.6% 0

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