WN2528

WN2528 (Southwest Airlines) is a multi-stop service on 26 routes, busiest Sacramento to Ontario. Of 527 departures recorded from October 2024 to July 2026, 69.2% 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 periods18 periods
PeriodDepartures 2025Departures 2026Change vs last year
January294▼ 86.2%
February2817▼ 39.3%
March2317▼ 26.1%
April2825▼ 10.7%
May3128▼ 9.7%
June3023▼ 23.3%
July3122▼ 29.0%
August4––
September–––
October37–in progress
November48––
December41––
Year to date (Jan–Jul)200136▼ 32.0%

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 periods18 periods
PeriodOn time 2025On time 2026Change vs last year
January86.2%25.0%▼ 71.0%
February78.6%70.6%▼ 10.2%
March71.4%70.6%▼ 1.2%
April75.0%72.0%▼ 4.0%
May66.7%70.4%▲ 5.5%
June72.4%82.6%▲ 14.1%
July67.7%86.4%▲ 27.5%
August75.0%––
September–––
October43.2%–in progress
November62.5%––
December48.8%––
Year-to-date average (Jan–Jul)74.0%68.2%▼ 7.8%

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 periods18 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February00–
March20▼ 100.0%
April00–
May110.0%
June10▼ 100.0%
July00–
August0––
September–––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)41▼ 75.0%

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 99.1% 522
  • Cancelled 0.9% 5

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

On time, leg by leg

  1. SMF–ONT99 77.8%
  2. DEN–FLL61 68.3%
  3. HOU–JAX58 73.7%
  4. SAN–LAS53 69.2%
  5. BWI–ALB45 55.6%
  6. MCI–AUS34 94.1%

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 20 20 90.0% 0
November 2024 22 22 81.8% 0
December 2024 19 19 57.9% 0
January 2025 29 29 86.2% 0
February 2025 28 28 78.6% 0
March 2025 23 21 71.4% 2
April 2025 28 28 75.0% 0
May 2025 31 30 66.7% 1
June 2025 30 29 72.4% 1
July 2025 31 31 67.7% 0
August 2025 4 4 75.0% 0
October 2025 37 37 43.2% 0
November 2025 48 48 62.5% 0
December 2025 41 41 48.8% 0
January 2026 4 4 25.0% 0
February 2026 17 17 70.6% 0
March 2026 17 17 70.6% 0
April 2026 25 25 72.0% 0
May 2026 28 27 70.4% 1
June 2026 23 23 82.6% 0
July 2026 22 22 86.4% 0

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