WN140

WN140 (Southwest Airlines) is a multi-stop service on 44 routes, busiest Baltimore to Charlotte. Of 739 departures recorded from October 2024 to July 2026, 74.7% 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
January3132▲ 3.2%
February2625▼ 3.8%
March5431▼ 42.6%
April3633▼ 8.3%
May3236▲ 12.5%
June3034▲ 13.3%
July3138▲ 22.6%
August31––
September30––
October23–in progress
November46––
December57––
Year to date (Jan–Jul)240229▼ 4.6%

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
January82.8%84.4%▲ 2.0%
February84.0%88.0%▲ 4.8%
March98.2%51.6%▼ 47.4%
April83.3%63.6%▼ 23.6%
May83.9%38.9%▼ 53.6%
June82.8%58.8%▼ 28.9%
July64.5%47.4%▼ 26.6%
August61.3%––
September83.3%––
October100.0%–in progress
November87.0%––
December71.9%––
Year-to-date average (Jan–Jul)82.8%61.8%▼ 25.3%

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%
February10▼ 100.0%
March00–
April00–
May10▼ 100.0%
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)50▼ 100.0%

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% 734
  • 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. BWI–CLT59 78.0%
  2. STL–DTW58 48.3%
  3. BWI–MCO58 84.2%
  4. MDW–DEN51 64.0%
  5. MDW–MCO50 70.0%
  6. HOU–MCO47 85.1%
  7. BWI–TPA45 71.1%
  8. SMF–LAX33 51.5%

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 20 20 90.0% 0
November 2024 30 30 83.3% 0
December 2024 33 33 63.6% 0
January 2025 31 29 82.8% 2
February 2025 26 25 84.0% 1
March 2025 54 54 98.2% 0
April 2025 36 36 83.3% 0
May 2025 32 31 83.9% 1
June 2025 30 29 82.8% 1
July 2025 31 31 64.5% 0
August 2025 31 31 61.3% 0
September 2025 30 30 83.3% 0
October 2025 23 23 100.0% 0
November 2025 46 46 87.0% 0
December 2025 57 57 71.9% 0
January 2026 32 32 84.4% 0
February 2026 25 25 88.0% 0
March 2026 31 31 51.6% 0
April 2026 33 33 63.6% 0
May 2026 36 36 38.9% 0
June 2026 34 34 58.8% 0
July 2026 38 38 47.4% 0

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