WN284

WN284 (Southwest Airlines) is a multi-stop service on 41 routes, busiest Ontario to Phoenix. Of 813 departures recorded from October 2024 to July 2026, 80.9% 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
January3031▲ 3.3%
February28280.0%
March5143▼ 15.7%
April4633▼ 28.3%
May4133▼ 19.5%
June4368▲ 58.1%
July4474▲ 68.2%
August27––
September26––
October27–in progress
November28––
December31––
Year to date (Jan–Jul)283310▲ 9.5%

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%74.2%▼ 23.2%
February100.0%89.3%▼ 10.7%
March80.4%76.7%▼ 4.5%
April95.5%87.9%▼ 7.9%
May73.2%81.8%▲ 11.8%
June69.8%55.2%▼ 20.9%
July84.1%65.8%▼ 21.8%
August81.5%––
September88.5%––
October66.7%–in progress
November96.4%––
December90.3%––
Year-to-date average (Jan–Jul)85.6%75.8%▼ 11.4%

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%
February00–
March00–
April20▼ 100.0%
May00–
June01–
July01–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)32▼ 33.3%

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 99.4% 808
  • Cancelled 0.6% 5

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

On time, leg by leg

  1. ONT–PHX120 97.5%
  2. HNL–SAN64 93.8%
  3. PHX–DEN57 76.8%
  4. AUS–BNA50 88.0%
  5. STL–MSP42 88.1%
  6. AMA–DAL42 85.7%
  7. MDW–TPA33 78.1%
  8. MCI–MCO30 83.3%

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 30 30 100.0% 0
December 2024 31 31 93.6% 0
January 2025 30 29 96.6% 1
February 2025 28 28 100.0% 0
March 2025 51 51 80.4% 0
April 2025 46 44 95.5% 2
May 2025 41 41 73.2% 0
June 2025 43 43 69.8% 0
July 2025 44 44 84.1% 0
August 2025 27 27 81.5% 0
September 2025 26 26 88.5% 0
October 2025 27 27 66.7% 0
November 2025 28 28 96.4% 0
December 2025 31 31 90.3% 0
January 2026 31 31 74.2% 0
February 2026 28 28 89.3% 0
March 2026 43 43 76.7% 0
April 2026 33 33 87.9% 0
May 2026 33 33 81.8% 0
June 2026 68 67 55.2% 1
July 2026 74 73 65.8% 1

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