WN393

WN393 (Southwest Airlines) is a multi-stop service on 34 routes, busiest Ontario to Oakland. Of 720 departures recorded from October 2024 to July 2026, 72.0% 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
January2935▲ 20.7%
February3628▼ 22.2%
March3239▲ 21.9%
April3032▲ 6.7%
May3130▼ 3.2%
June3638▲ 5.6%
July4039▼ 2.5%
August34––
September34––
October22–in progress
November32––
December47––
Year to date (Jan–Jul)234241▲ 3.0%

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
January93.1%71.4%▼ 23.3%
February94.3%53.6%▼ 43.2%
March96.9%97.4%▲ 0.6%
April70.0%90.6%▲ 29.5%
May54.8%86.7%▲ 58.0%
June26.5%32.4%▲ 22.5%
July31.6%48.7%▲ 54.3%
August82.4%––
September97.1%––
October90.9%–in progress
November56.3%––
December57.5%––
Year-to-date average (Jan–Jul)66.7%68.7%▲ 2.9%

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–
February10▼ 100.0%
March00–
April00–
May00–
June21▼ 50.0%
July20▼ 100.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)51▼ 80.0%

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 99.2% 714
  • Cancelled 0.8% 6

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

On time, leg by leg

  1. ONT–OAK120 95.8%
  2. BWI–ORF60 26.8%
  3. DEN–SAN58 67.2%
  4. LAS–MKE57 52.6%
  5. SNA–SJC54 68.5%
  6. HOU–CRP42 88.1%
  7. AUS–SEA34 39.4%
  8. SJC–AUS33 93.9%

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

Legs flown under this number

9
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 14 14 92.9% 0
November 2024 30 30 96.7% 0
December 2024 32 32 100.0% 0
January 2025 29 29 93.1% 0
February 2025 36 35 94.3% 1
March 2025 32 32 96.9% 0
April 2025 30 30 70.0% 0
May 2025 31 31 54.8% 0
June 2025 36 34 26.5% 2
July 2025 40 38 31.6% 2
August 2025 34 34 82.4% 0
September 2025 34 34 97.1% 0
October 2025 22 22 90.9% 0
November 2025 32 32 56.3% 0
December 2025 47 47 57.5% 0
January 2026 35 35 71.4% 0
February 2026 28 28 53.6% 0
March 2026 39 39 97.4% 0
April 2026 32 32 90.6% 0
May 2026 30 30 86.7% 0
June 2026 38 37 32.4% 1
July 2026 39 39 48.7% 0

How to read this chart

Loading the guide…