WN674

WN674 (Southwest Airlines) is a multi-stop service on 37 routes, busiest Houston to Austin. Of 771 departures recorded from October 2024 to July 2026, 76.4% 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
January3335▲ 6.1%
February2835▲ 25.0%
March1336▲ 176.9%
April2831▲ 10.7%
May3630▼ 16.7%
June4633▼ 28.3%
July4737▼ 21.3%
August32––
September30––
October37–in progress
November40––
December54––
Year to date (Jan–Jul)231237▲ 2.6%

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
January83.9%94.3%▲ 12.4%
February89.3%85.7%▼ 4.0%
March100.0%97.2%▼ 2.8%
April82.1%63.3%▼ 22.9%
May91.2%70.0%▼ 23.2%
June56.5%45.5%▼ 19.6%
July52.4%46.0%▼ 12.3%
August80.7%––
September76.7%––
October75.7%–in progress
November80.0%––
December90.7%––
Year-to-date average (Jan–Jul)79.3%71.7%▼ 9.6%

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
January20▼ 100.0%
February00–
March00–
April01–
May20▼ 100.0%
June00–
July50▼ 100.0%
August1––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)91▼ 88.9%

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 98.4% 759
  • Cancelled 1.6% 12

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

On time, leg by leg

  1. HOU–AUS121 86.4%
  2. OAK–PDX55 92.7%
  3. AUS–HOU50 86.0%
  4. LGA–BNA42 78.1%
  5. LAX–ABQ42 80.5%
  6. CMH–BWI42 59.0%
  7. BNA–SJC42 23.8%
  8. MDW–PIT41 80.5%

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 37 37 73.0% 0
November 2024 34 33 90.9% 1
December 2024 39 39 76.9% 0
January 2025 33 31 83.9% 2
February 2025 28 28 89.3% 0
March 2025 13 13 100.0% 0
April 2025 28 28 82.1% 0
May 2025 36 34 91.2% 2
June 2025 46 46 56.5% 0
July 2025 47 42 52.4% 5
August 2025 32 31 80.7% 1
September 2025 30 30 76.7% 0
October 2025 37 37 75.7% 0
November 2025 40 40 80.0% 0
December 2025 54 54 90.7% 0
January 2026 35 35 94.3% 0
February 2026 35 35 85.7% 0
March 2026 36 36 97.2% 0
April 2026 31 30 63.3% 1
May 2026 30 30 70.0% 0
June 2026 33 33 45.5% 0
July 2026 37 37 46.0% 0

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