WN978

WN978 (Southwest Airlines) is a multi-stop service on 37 routes, busiest Baltimore to Sarasota. Of 732 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
January5031▼ 38.0%
February5925▼ 57.6%
March3531▼ 11.4%
April2230▲ 36.4%
May2332▲ 39.1%
June2849▲ 75.0%
July3153▲ 71.0%
August31––
September30––
October23–in progress
November32––
December33––
Year to date (Jan–Jul)248251▲ 1.2%

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
January85.4%58.1%▼ 32.0%
February93.2%56.0%▼ 39.9%
March71.4%77.4%▲ 8.4%
April86.4%96.7%▲ 11.9%
May91.3%90.6%▼ 0.7%
June60.7%40.8%▼ 32.8%
July58.1%39.6%▼ 31.8%
August90.3%––
September96.7%––
October78.3%–in progress
November90.3%––
December90.9%––
Year-to-date average (Jan–Jul)78.1%65.6%▼ 16.0%

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–
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)20▼ 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 99.6% 729
  • Cancelled 0.4% 3

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

On time, leg by leg

  1. BWI–SRQ66 80.3%
  2. BWI–SMF61 59.0%
  3. LAS–BWI58 94.8%
  4. DAL–SEA58 93.1%
  5. DEN–SMF47 57.5%
  6. HOU–BWI45 95.5%
  7. DEN–BUR40 92.5%
  8. DEN–LGA33 72.7%

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 23 23 95.7% 0
November 2024 23 23 91.3% 0
December 2024 38 38 79.0% 0
January 2025 50 48 85.4% 2
February 2025 59 59 93.2% 0
March 2025 35 35 71.4% 0
April 2025 22 22 86.4% 0
May 2025 23 23 91.3% 0
June 2025 28 28 60.7% 0
July 2025 31 31 58.1% 0
August 2025 31 31 90.3% 0
September 2025 30 30 96.7% 0
October 2025 23 23 78.3% 0
November 2025 32 31 90.3% 1
December 2025 33 33 90.9% 0
January 2026 31 31 58.1% 0
February 2026 25 25 56.0% 0
March 2026 31 31 77.4% 0
April 2026 30 30 96.7% 0
May 2026 32 32 90.6% 0
June 2026 49 49 40.8% 0
July 2026 53 53 39.6% 0

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