WN1501

WN1501 (Southwest Airlines) is a multi-stop service on 26 routes, busiest Portland to Oakland. Of 711 departures recorded from October 2024 to July 2026, 73.8% 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
January5231▼ 40.4%
February5228▼ 46.2%
March3135▲ 12.9%
April2931▲ 6.9%
May31310.0%
June30300.0%
July31310.0%
August37––
September38––
October30–in progress
November31––
December31––
Year to date (Jan–Jul)256217▼ 15.2%

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
January88.5%82.8%▼ 6.4%
February84.3%57.1%▼ 32.2%
March93.6%38.2%▼ 59.1%
April86.2%74.2%▼ 13.9%
May96.8%74.2%▼ 23.3%
June66.7%43.3%▼ 35.0%
July63.3%51.6%▼ 18.5%
August51.4%––
September84.2%––
October56.7%–in progress
November87.1%––
December74.2%––
Year-to-date average (Jan–Jul)82.8%60.2%▼ 27.2%

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
January02–
February10▼ 100.0%
March01–
April00–
May00–
June00–
July10▼ 100.0%
August0––
September0––
October0–in progress
November0––
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 99.3% 706
  • 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. PDX–OAK67 86.4%
  2. BUR–DEN64 78.1%
  3. DEN–ICT61 65.0%
  4. SJU–TPA58 91.4%
  5. DEN–BWI58 46.6%
  6. MCO–LAS57 63.2%
  7. DAL–DEN47 77.8%
  8. BNA–ECP34 61.8%

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

Legs flown under this number

10
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 95.0% 0
November 2024 25 25 88.0% 0
December 2024 26 26 84.6% 0
January 2025 52 52 88.5% 0
February 2025 52 51 84.3% 1
March 2025 31 31 93.6% 0
April 2025 29 29 86.2% 0
May 2025 31 31 96.8% 0
June 2025 30 30 66.7% 0
July 2025 31 30 63.3% 1
August 2025 37 37 51.4% 0
September 2025 38 38 84.2% 0
October 2025 30 30 56.7% 0
November 2025 31 31 87.1% 0
December 2025 31 31 74.2% 0
January 2026 31 29 82.8% 2
February 2026 28 28 57.1% 0
March 2026 35 34 38.2% 1
April 2026 31 31 74.2% 0
May 2026 31 31 74.2% 0
June 2026 30 30 43.3% 0
July 2026 31 31 51.6% 0

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