WN900

WN900 (Southwest Airlines) is a multi-stop service on 33 routes, busiest San Juan to Tampa. Of 701 departures recorded from October 2024 to July 2026, 77.5% 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
January3632▼ 11.1%
February3528▼ 20.0%
March3231▼ 3.1%
April3029▼ 3.3%
May31310.0%
June2438▲ 58.3%
July2138▲ 81.0%
August31––
September29––
October31–in progress
November37––
December37––
Year to date (Jan–Jul)209227▲ 8.6%

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
January72.2%83.3%▲ 15.4%
February82.9%96.4%▲ 16.4%
March71.9%80.7%▲ 12.2%
April80.0%93.1%▲ 16.4%
May74.2%100.0%▲ 34.8%
June73.9%84.2%▲ 13.9%
July60.0%68.4%▲ 14.0%
August38.7%––
September72.4%––
October35.5%–in progress
November94.6%––
December86.5%––
Year-to-date average (Jan–Jul)73.6%86.6%▲ 17.7%

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
January02–
February00–
March00–
April00–
May00–
June10▼ 100.0%
July10▼ 100.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)220.0%

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 99.4% 697
  • Cancelled 0.6% 4

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

On time, leg by leg

  1. SJU–TPA97 81.4%
  2. BHM–MCO64 89.1%
  3. DEN–DAL57 50.9%
  4. BOS–STL57 100.0%
  5. ATL–HOU50 72.0%
  6. DAL–AMA47 88.9%
  7. BWI–CHS45 68.9%
  8. MDW–PVD33 75.8%

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

Legs flown under this number

8
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 37 37 91.9% 0
November 2024 32 32 71.9% 0
December 2024 31 31 80.7% 0
January 2025 36 36 72.2% 0
February 2025 35 35 82.9% 0
March 2025 32 32 71.9% 0
April 2025 30 30 80.0% 0
May 2025 31 31 74.2% 0
June 2025 24 23 73.9% 1
July 2025 21 20 60.0% 1
August 2025 31 31 38.7% 0
September 2025 29 29 72.4% 0
October 2025 31 31 35.5% 0
November 2025 37 37 94.6% 0
December 2025 37 37 86.5% 0
January 2026 32 30 83.3% 2
February 2026 28 28 96.4% 0
March 2026 31 31 80.7% 0
April 2026 29 29 93.1% 0
May 2026 31 31 100.0% 0
June 2026 38 38 84.2% 0
July 2026 38 38 68.4% 0

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