WN1863

WN1863 (Southwest Airlines) is a multi-stop service on 23 routes, busiest Baltimore to Hartford. Of 622 departures recorded from October 2024 to July 2026, 74.5% 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
January3132▲ 3.2%
February2827▼ 3.6%
March3727▼ 27.0%
April3419▼ 44.1%
May3317▼ 48.5%
June2329▲ 26.1%
July2231▲ 40.9%
August36––
September38––
October1–in progress
November39––
December45––
Year to date (Jan–Jul)208182▼ 12.5%

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
January70.0%81.3%▲ 16.1%
February78.6%81.5%▲ 3.7%
March86.1%77.8%▼ 9.7%
April97.1%63.2%▼ 34.9%
May90.9%35.3%▼ 61.2%
June60.9%58.6%▼ 3.7%
July54.6%61.3%▲ 12.4%
August69.4%––
September73.7%––
October100.0%–in progress
November89.5%––
December93.3%––
Year-to-date average (Jan–Jul)76.9%65.6%▼ 14.7%

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
January10▼ 100.0%
February00–
March10▼ 100.0%
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 99.5% 619
  • Cancelled 0.5% 3

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

On time, leg by leg

  1. BWI–BDL121 63.3%
  2. SAN–SJC64 95.2%
  3. BNA–OMA58 75.9%
  4. HOU–DEN57 79.0%
  5. BUR–SJC57 93.0%
  6. PHX–LAX42 52.4%

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

Legs flown under this number

6
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 14 14 92.9% 0
November 2024 28 28 60.7% 0
December 2024 31 31 48.4% 0
January 2025 31 30 70.0% 1
February 2025 28 28 78.6% 0
March 2025 37 36 86.1% 1
April 2025 34 34 97.1% 0
May 2025 33 33 90.9% 0
June 2025 23 23 60.9% 0
July 2025 22 22 54.6% 0
August 2025 36 36 69.4% 0
September 2025 38 38 73.7% 0
October 2025 1 1 100.0% 0
November 2025 39 38 89.5% 1
December 2025 45 45 93.3% 0
January 2026 32 32 81.3% 0
February 2026 27 27 81.5% 0
March 2026 27 27 77.8% 0
April 2026 19 19 63.2% 0
May 2026 17 17 35.3% 0
June 2026 29 29 58.6% 0
July 2026 31 31 61.3% 0

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