WN4413

WN4413 (Southwest Airlines) is a multi-stop service on 34 routes, busiest Boise to Phoenix. Of 496 departures recorded from October 2024 to July 2026, 74.2% 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 periods17 periods
PeriodDepartures 2025Departures 2026Change vs last year
January2128▲ 33.3%
February4528▼ 37.8%
March1031▲ 210.0%
April127▲ 2,600.0%
May–27–
June2026▲ 30.0%
July2227▲ 22.7%
August4––
September–––
October62–in progress
November8––
December11––

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 periods17 periods
PeriodOn time 2025On time 2026Change vs last year
January85.7%92.9%▲ 8.3%
February56.8%100.0%▲ 76.0%
March70.0%77.4%▲ 10.6%
April100.0%70.4%▼ 29.6%
May–74.1%–
June80.0%56.0%▼ 30.0%
July86.4%50.0%▼ 42.1%
August75.0%––
September–––
October88.7%–in progress
November71.4%––
December0.0%––

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 periods17 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February10▼ 100.0%
March00–
April00–
May–0–
June01–
July01–
August0––
September–––
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 99.2% 492
  • Cancelled 0.8% 4

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

On time, leg by leg

  1. BOI–PHX58 98.3%
  2. MDW–LGB50 50.0%
  3. MSY–MCO45 73.3%
  4. SNA–SMF32 68.8%
  5. ORD–DAL31 100.0%

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

Legs flown under this number

5
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 19 19 36.8% 0
November 2024 51 51 90.2% 0
December 2024 28 28 67.9% 0
January 2025 21 21 85.7% 0
February 2025 45 44 56.8% 1
March 2025 10 10 70.0% 0
April 2025 1 1 100.0% 0
June 2025 20 20 80.0% 0
July 2025 22 22 86.4% 0
August 2025 4 4 75.0% 0
October 2025 62 62 88.7% 0
November 2025 8 7 71.4% 1
December 2025 11 11 0.0% 0
January 2026 28 28 92.9% 0
February 2026 28 28 100.0% 0
March 2026 31 31 77.4% 0
April 2026 27 27 70.4% 0
May 2026 27 27 74.1% 0
June 2026 26 25 56.0% 1
July 2026 27 26 50.0% 1

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