WN1331

WN1331 (Southwest Airlines) is a multi-stop service on 37 routes, busiest Burbank to Phoenix. Of 645 departures recorded from October 2024 to July 2026, 71.0% 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
January3016▼ 46.7%
February2016▼ 20.0%
March3818▼ 52.6%
April2338▲ 65.2%
May1745▲ 164.7%
June2923▼ 20.7%
July3220▼ 37.5%
August31––
September33––
October63–in progress
November44––
December37––
Year to date (Jan–Jul)189176▼ 6.9%

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
January96.6%50.0%▼ 48.2%
February84.2%62.5%▼ 25.8%
March91.9%88.2%▼ 4.0%
April91.3%73.7%▼ 19.3%
May88.2%42.2%▼ 52.2%
June55.2%65.2%▲ 18.2%
July69.0%65.0%▼ 5.8%
August45.2%––
September60.6%––
October66.7%–in progress
November81.8%––
December46.0%––
Year-to-date average (Jan–Jul)82.3%63.8%▼ 22.5%

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
January10▼ 100.0%
February10▼ 100.0%
March110.0%
April00–
May00–
June00–
July30▼ 100.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)61▼ 83.3%

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 98.9% 638
  • Cancelled 1.1% 7

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026

On time, leg by leg

  1. BUR–PHX94 92.4%
  2. MDW–MHT61 58.6%
  3. DEN–PHX58 58.6%
  4. SMF–SEA39 61.5%
  5. BNA–MCI34 94.1%
  6. BNA–PNS30 56.7%

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 26 26 88.5% 0
November 2024 18 18 94.4% 0
December 2024 28 28 92.9% 0
January 2025 30 29 96.6% 1
February 2025 20 19 84.2% 1
March 2025 38 37 91.9% 1
April 2025 23 23 91.3% 0
May 2025 17 17 88.2% 0
June 2025 29 29 55.2% 0
July 2025 32 29 69.0% 3
August 2025 31 31 45.2% 0
September 2025 33 33 60.6% 0
October 2025 63 63 66.7% 0
November 2025 44 44 81.8% 0
December 2025 37 37 46.0% 0
January 2026 16 16 50.0% 0
February 2026 16 16 62.5% 0
March 2026 18 17 88.2% 1
April 2026 38 38 73.7% 0
May 2026 45 45 42.2% 0
June 2026 23 23 65.2% 0
July 2026 20 20 65.0% 0

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