WN615

WN615 (Southwest Airlines) is a multi-stop service on 36 routes, busiest San Jose to Santa Ana. Of 651 departures recorded from October 2024 to July 2026, 81.9% 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
January3731▼ 16.2%
February3028▼ 6.7%
March4419▼ 56.8%
April4319▼ 55.8%
May4523▼ 48.9%
June1912▼ 36.8%
July1813▼ 27.8%
August34––
September34––
October24–in progress
November31––
December31––
Year to date (Jan–Jul)236145▼ 38.6%

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
January80.6%79.3%▼ 1.6%
February89.7%82.1%▼ 8.4%
March95.5%79.0%▼ 17.3%
April95.2%47.4%▼ 50.3%
May90.9%21.7%▼ 76.1%
June68.4%75.0%▲ 9.6%
July53.3%69.2%▲ 29.8%
August88.2%––
September91.2%––
October91.7%–in progress
November64.5%––
December77.4%––
Year-to-date average (Jan–Jul)81.9%64.8%▼ 20.9%

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
January12▲ 100.0%
February10▼ 100.0%
March00–
April10▼ 100.0%
May10▼ 100.0%
June00–
July30▼ 100.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)72▼ 71.4%

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 98.3% 640
  • Cancelled 1.7% 11

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026

On time, leg by leg

  1. SJC–SNA94 93.5%
  2. LAX–SMF63 66.7%
  3. LAS–SMF58 93.1%
  4. BNA–RSW58 83.9%
  5. SJC–BUR42 92.9%
  6. BNA–DTW40 27.5%
  7. LIT–STL33 90.6%

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

Legs flown under this number

7
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 24 24 100.0% 0
November 2024 37 37 94.6% 0
December 2024 55 53 88.7% 2
January 2025 37 36 80.6% 1
February 2025 30 29 89.7% 1
March 2025 44 44 95.5% 0
April 2025 43 42 95.2% 1
May 2025 45 44 90.9% 1
June 2025 19 19 68.4% 0
July 2025 18 15 53.3% 3
August 2025 34 34 88.2% 0
September 2025 34 34 91.2% 0
October 2025 24 24 91.7% 0
November 2025 31 31 64.5% 0
December 2025 31 31 77.4% 0
January 2026 31 29 79.3% 2
February 2026 28 28 82.1% 0
March 2026 19 19 79.0% 0
April 2026 19 19 47.4% 0
May 2026 23 23 21.7% 0
June 2026 12 12 75.0% 0
July 2026 13 13 69.2% 0

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