WN1947

WN1947 (Southwest Airlines) is a multi-stop service on 30 routes, busiest Baltimore to San Juan. Of 636 departures recorded from October 2024 to July 2026, 75.8% 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
January1119▲ 72.7%
February630▲ 400.0%
March2736▲ 33.3%
April4241▼ 2.4%
May5046▼ 8.0%
June3127▼ 12.9%
July3129▼ 6.5%
August31––
September30––
October27–in progress
November30––
December31––
Year to date (Jan–Jul)198228▲ 15.2%

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
January72.7%94.7%▲ 30.3%
February83.3%93.3%▲ 12.0%
March66.7%61.1%▼ 8.3%
April76.2%61.0%▼ 20.0%
May66.0%45.7%▼ 30.8%
June87.1%74.1%▼ 15.0%
July90.3%86.2%▼ 4.6%
August83.9%––
September83.3%––
October66.7%–in progress
November96.6%––
December71.0%––
Year-to-date average (Jan–Jul)77.5%73.7%▼ 4.8%

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
January00–
February00–
March00–
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)00

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 99.8% 635
  • Cancelled 0.2% 1

Share of all recorded flights in the period, all legs. · Oct 14, 2024 → Jul 31, 2026

On time, leg by leg

  1. BWI–SJU88 81.8%
  2. MIA–BWI58 44.8%
  3. LAS–OGG58 82.8%
  4. HOU–ATL50 84.0%
  5. DJT–BWI47 78.7%
  6. BZN–DEN46 93.3%
  7. ROC–BWI42 73.8%
  8. LAS–ROC32 75.0%

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

Legs flown under this number

9
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 7 7 85.7% 0
November 2024 34 34 91.2% 0
December 2024 20 20 75.0% 0
January 2025 11 11 72.7% 0
February 2025 6 6 83.3% 0
March 2025 27 27 66.7% 0
April 2025 42 42 76.2% 0
May 2025 50 50 66.0% 0
June 2025 31 31 87.1% 0
July 2025 31 31 90.3% 0
August 2025 31 31 83.9% 0
September 2025 30 30 83.3% 0
October 2025 27 27 66.7% 0
November 2025 30 29 96.6% 1
December 2025 31 31 71.0% 0
January 2026 19 19 94.7% 0
February 2026 30 30 93.3% 0
March 2026 36 36 61.1% 0
April 2026 41 41 61.0% 0
May 2026 46 46 45.7% 0
June 2026 27 27 74.1% 0
July 2026 29 29 86.2% 0

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