WN279

WN279 (Southwest Airlines) is a multi-stop service on 46 routes, busiest Manchester to Baltimore. Of 927 departures recorded from October 2024 to July 2026, 72.4% 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
January35350.0%
February2825▼ 10.7%
March7330▼ 58.9%
April4429▼ 34.1%
May3331▼ 6.1%
June4354▲ 25.6%
July4359▲ 37.2%
August66––
September69––
October56–in progress
November34––
December35––
Year to date (Jan–Jul)299263▼ 12.0%

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
January88.2%88.6%▲ 0.4%
February89.3%75.0%▼ 16.0%
March69.9%82.8%▲ 18.5%
April72.7%72.4%▼ 0.4%
May63.6%61.3%▼ 3.7%
June76.2%58.5%▼ 23.2%
July51.2%61.0%▲ 19.3%
August77.3%––
September63.2%––
October85.7%–in progress
November78.1%––
December51.4%––
Year-to-date average (Jan–Jul)73.0%71.4%▼ 2.3%

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
January10▼ 100.0%
February01–
March01–
April00–
May00–
June110.0%
July00–
August0––
September1––
October0–in progress
November2––
December0––
Year to date (Jan–Jul)23▲ 50.0%

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 99.1% 919
  • Cancelled 0.9% 8

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

On time, leg by leg

  1. MHT–BWI123 96.7%
  2. SAN–SJC65 76.6%
  3. AUS–ATL58 65.5%
  4. BWI–TPA50 66.0%
  5. SAT–LAS46 77.3%
  6. LAX–OAK43 90.5%
  7. ECP–AUS36 69.4%
  8. PNS–AUS34 50.0%

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 23 23 73.9% 0
November 2024 35 35 91.4% 0
December 2024 47 47 80.9% 0
January 2025 35 34 88.2% 1
February 2025 28 28 89.3% 0
March 2025 73 73 69.9% 0
April 2025 44 44 72.7% 0
May 2025 33 33 63.6% 0
June 2025 43 42 76.2% 1
July 2025 43 43 51.2% 0
August 2025 66 66 77.3% 0
September 2025 69 68 63.2% 1
October 2025 56 56 85.7% 0
November 2025 34 32 78.1% 2
December 2025 35 35 51.4% 0
January 2026 35 35 88.6% 0
February 2026 25 24 75.0% 1
March 2026 30 29 82.8% 1
April 2026 29 29 72.4% 0
May 2026 31 31 61.3% 0
June 2026 54 53 58.5% 1
July 2026 59 59 61.0% 0

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