WN3556

WN3556 (Southwest Airlines) is a multi-stop service on 17 routes, busiest Sacramento to Santa Ana. Of 571 departures recorded from October 2024 to July 2026, 69.7% 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
January2527▲ 8.0%
February2124▲ 14.3%
March820▲ 150.0%
April2115▼ 28.6%
May2612▼ 53.8%
June3025▼ 16.7%
July3127▼ 12.9%
August45––
September47––
October32–in progress
November29––
December31––
Year to date (Jan–Jul)162150▼ 7.4%

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
January84.0%88.9%▲ 5.8%
February90.5%87.5%▼ 3.3%
March75.0%75.0%0.0%
April85.7%80.0%▼ 6.7%
May62.5%50.0%▼ 20.0%
June30.0%56.0%▲ 86.7%
July37.9%48.2%▲ 26.9%
August64.4%––
September74.5%––
October78.1%–in progress
November72.4%––
December61.3%––
Year-to-date average (Jan–Jul)66.5%69.4%▲ 4.3%

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
January00–
February00–
March00–
April00–
May20▼ 100.0%
June00–
July20▼ 100.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)40▼ 100.0%

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% 567
  • Cancelled 0.7% 4

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

On time, leg by leg

  1. SMF–SNA94 80.9%
  2. SJC–SAN66 81.8%
  3. MCI–TPA64 67.2%
  4. LGA–HOU61 30.5%
  5. ELP–DAL57 68.4%
  6. LGA–MDW42 72.5%
  7. SAT–ATL34 44.1%
  8. SJC–LGB31 77.4%

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

Legs flown under this number

8
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 95.0% 0
November 2024 27 27 85.2% 0
December 2024 28 28 71.4% 0
January 2025 25 25 84.0% 0
February 2025 21 21 90.5% 0
March 2025 8 8 75.0% 0
April 2025 21 21 85.7% 0
May 2025 26 24 62.5% 2
June 2025 30 30 30.0% 0
July 2025 31 29 37.9% 2
August 2025 45 45 64.4% 0
September 2025 47 47 74.5% 0
October 2025 32 32 78.1% 0
November 2025 29 29 72.4% 0
December 2025 31 31 61.3% 0
January 2026 27 27 88.9% 0
February 2026 24 24 87.5% 0
March 2026 20 20 75.0% 0
April 2026 15 15 80.0% 0
May 2026 12 12 50.0% 0
June 2026 25 25 56.0% 0
July 2026 27 27 48.2% 0

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