WN3581

WN3581 (Southwest Airlines) is a multi-stop service on 27 routes, busiest Oakland to Long Beach. Of 497 departures recorded from October 2024 to July 2026, 67.9% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

Months without data are left blank.

The most recent periods18 periods
PeriodDepartures 2025Departures 2026Change vs last year
January53▼ 40.0%
February4––
March135▲ 3,400.0%
April2353▲ 130.4%
May3157▲ 83.9%
June4214▼ 66.7%
July507▼ 86.0%
August41––
September43––
October2–in progress
November35––
December35––

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

Months without data are left blank.

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods18 periods
PeriodOn time 2025On time 2026Change vs last year
January80.0%0.0%▼ 100.0%
February50.0%––
March100.0%45.7%▼ 54.3%
April87.0%39.6%▼ 54.4%
May77.4%49.1%▼ 36.6%
June92.9%64.3%▼ 30.8%
July84.0%71.4%▼ 15.0%
August80.5%––
September86.1%––
October100.0%–in progress
November79.4%––
December51.4%––

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods18 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February0––
March00–
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November1––
December0––

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% 496
  • Cancelled 0.2% 1

Share of all recorded flights in the period, all legs. · Oct 15, 2024 → Jul 26, 2026

On time, leg by leg

  1. OAK–LGB60 85.0%
  2. SLC–LAS57 82.5%
  3. SJU–MCO50 84.0%
  4. SFO–LAS44 70.5%
  5. FLL–BWI42 52.4%
  6. BWI–PHX34 52.9%

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 6 6 100.0% 0
November 2024 2 2 50.0% 0
December 2024 8 8 25.0% 0
January 2025 5 5 80.0% 0
February 2025 4 4 50.0% 0
March 2025 1 1 100.0% 0
April 2025 23 23 87.0% 0
May 2025 31 31 77.4% 0
June 2025 42 42 92.9% 0
July 2025 50 50 84.0% 0
August 2025 41 41 80.5% 0
September 2025 43 43 86.1% 0
October 2025 2 2 100.0% 0
November 2025 35 34 79.4% 1
December 2025 35 35 51.4% 0
January 2026 3 3 0.0% 0
March 2026 35 35 45.7% 0
April 2026 53 53 39.6% 0
May 2026 57 57 49.1% 0
June 2026 14 14 64.3% 0
July 2026 7 7 71.4% 0

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