WN1677

WN1677 (Southwest Airlines) is a multi-stop service on 29 routes, busiest Phoenix to San Diego. Of 764 departures recorded from October 2024 to July 2026, 73.4% 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
January1542▲ 180.0%
February936▲ 300.0%
March3344▲ 33.3%
April3233▲ 3.1%
May31310.0%
June3046▲ 53.3%
July3148▲ 54.8%
August29––
September29––
October22–in progress
November86––
December61––
Year to date (Jan–Jul)181280▲ 54.7%

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
January100.0%90.2%▼ 9.8%
February100.0%77.8%▼ 22.2%
March75.8%86.4%▲ 14.0%
April75.0%72.7%▼ 3.0%
May54.8%35.5%▼ 35.3%
June83.3%56.5%▼ 32.2%
July86.7%66.7%▼ 23.1%
August86.2%––
September69.0%––
October100.0%–in progress
November67.5%––
December49.2%––
Year-to-date average (Jan–Jul)82.2%69.4%▼ 15.6%

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–
March00–
April00–
May00–
June00–
July10▼ 100.0%
August0––
September0––
October0–in progress
November3––
December0––
Year to date (Jan–Jul)110.0%

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 99.3% 759
  • Cancelled 0.7% 5

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

On time, leg by leg

  1. PHX–SAN69 66.2%
  2. OKC–STL61 88.3%
  3. BNA–SMF58 48.3%
  4. BNA–DEN55 92.7%
  5. PDX–PHX42 95.2%
  6. PHX–SNA41 46.3%
  7. LAS–LAX39 79.5%
  8. BNA–CLT35 90.9%

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 14 14 78.6% 0
November 2024 28 28 100.0% 0
December 2024 34 34 82.4% 0
January 2025 15 15 100.0% 0
February 2025 9 9 100.0% 0
March 2025 33 33 75.8% 0
April 2025 32 32 75.0% 0
May 2025 31 31 54.8% 0
June 2025 30 30 83.3% 0
July 2025 31 30 86.7% 1
August 2025 29 29 86.2% 0
September 2025 29 29 69.0% 0
October 2025 22 22 100.0% 0
November 2025 86 83 67.5% 3
December 2025 61 61 49.2% 0
January 2026 42 41 90.2% 1
February 2026 36 36 77.8% 0
March 2026 44 44 86.4% 0
April 2026 33 33 72.7% 0
May 2026 31 31 35.5% 0
June 2026 46 46 56.5% 0
July 2026 48 48 66.7% 0

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