WN956

WN956 (Southwest Airlines) is a multi-stop service on 34 routes, busiest Boise to Oakland. Of 716 departures recorded from October 2024 to July 2026, 74.9% 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
January3126▼ 16.1%
February2827▼ 3.6%
March3152▲ 67.7%
April1943▲ 126.3%
May1745▲ 164.7%
June2850▲ 78.6%
July3050▲ 66.7%
August34––
September34––
October31–in progress
November28––
December29––
Year to date (Jan–Jul)184293▲ 59.2%

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
January86.7%92.0%▲ 6.1%
February96.4%66.7%▼ 30.9%
March96.8%90.2%▼ 6.8%
April63.2%72.1%▲ 14.1%
May50.0%64.4%▲ 28.9%
June67.9%66.0%▼ 2.7%
July70.0%55.6%▼ 20.6%
August58.8%––
September73.5%––
October70.0%–in progress
November88.9%––
December58.6%––
Year-to-date average (Jan–Jul)75.8%72.4%▼ 4.5%

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
January110.0%
February00–
March01–
April00–
May10▼ 100.0%
June00–
July05–
August0––
September0––
October1–in progress
November1––
December0––
Year to date (Jan–Jul)27▲ 250.0%

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 98.5% 705
  • Cancelled 1.5% 11

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

On time, leg by leg

  1. BOI–OAK110 94.6%
  2. PHX–GEG58 60.3%
  3. IND–MCO58 73.7%
  4. SAN–SFO53 78.9%
  5. IND–LAS34 61.8%
  6. STL–BUR33 72.7%
  7. CRP–HOU33 93.9%
  8. BWI–HOU33 75.8%

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 20 100.0% 0
November 2024 32 32 93.8% 0
December 2024 31 31 74.2% 0
January 2025 31 30 86.7% 1
February 2025 28 28 96.4% 0
March 2025 31 31 96.8% 0
April 2025 19 19 63.2% 0
May 2025 17 16 50.0% 1
June 2025 28 28 67.9% 0
July 2025 30 30 70.0% 0
August 2025 34 34 58.8% 0
September 2025 34 34 73.5% 0
October 2025 31 30 70.0% 1
November 2025 28 27 88.9% 1
December 2025 29 29 58.6% 0
January 2026 26 25 92.0% 1
February 2026 27 27 66.7% 0
March 2026 52 51 90.2% 1
April 2026 43 43 72.1% 0
May 2026 45 45 64.4% 0
June 2026 50 50 66.0% 0
July 2026 50 45 55.6% 5

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