WN3733

WN3733 (Southwest Airlines) is a multi-stop service on 17 routes, busiest Burbank to San Jose. Of 478 departures recorded from October 2024 to July 2026, 74.0% 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 periods16 periods
PeriodDepartures 2025Departures 2026Change vs last year
January29––
February283▼ 89.3%
March3323▼ 30.3%
April3026▼ 13.3%
May3126▼ 16.1%
June3422▼ 35.3%
July3523▼ 34.3%
August31––
September30––
October1–in progress
November–––
December–––

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 periods16 periods
PeriodOn time 2025On time 2026Change vs last year
January86.2%––
February85.7%33.3%▼ 61.1%
March66.7%34.8%▼ 47.8%
April90.0%57.7%▼ 35.9%
May60.0%57.7%▼ 3.9%
June73.5%31.8%▼ 56.7%
July80.0%56.5%▼ 29.3%
August96.8%––
September100.0%––
October100.0%–in progress
November–––
December–––

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 periods16 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January0––
February00–
March00–
April00–
May10▼ 100.0%
June00–
July00–
August0––
September0––
October0–in progress
November–––
December–––

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 99.6% 476
  • Cancelled 0.4% 2

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

On time, leg by leg

  1. BUR–SJC105 84.6%
  2. SNA–SMF58 98.3%
  3. PHX–ABQ50 60.0%
  4. MDW–PHL43 86.1%
  5. SLC–AUS42 45.2%
  6. STL–BOS32 71.0%

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 24 24 100.0% 0
November 2024 27 26 84.6% 1
December 2024 22 22 77.3% 0
January 2025 29 29 86.2% 0
February 2025 28 28 85.7% 0
March 2025 33 33 66.7% 0
April 2025 30 30 90.0% 0
May 2025 31 30 60.0% 1
June 2025 34 34 73.5% 0
July 2025 35 35 80.0% 0
August 2025 31 31 96.8% 0
September 2025 30 30 100.0% 0
October 2025 1 1 100.0% 0
February 2026 3 3 33.3% 0
March 2026 23 23 34.8% 0
April 2026 26 26 57.7% 0
May 2026 26 26 57.7% 0
June 2026 22 22 31.8% 0
July 2026 23 23 56.5% 0

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