WN1665

WN1665 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Oakland to Chicago. Of 611 departures recorded from October 2024 to July 2026, 79.3% 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
January2715▼ 44.4%
February2622▼ 15.4%
March5529▼ 47.3%
April456▼ 86.7%
May401▼ 97.5%
June3335▲ 6.1%
July3141▲ 32.3%
August4––
September–––
October22–in progress
November53––
December51––
Year to date (Jan–Jul)257149▼ 42.0%

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
January88.9%78.6%▼ 11.6%
February84.6%63.6%▼ 24.8%
March72.7%44.8%▼ 38.4%
April84.4%50.0%▼ 40.8%
May92.5%100.0%▲ 8.1%
June75.8%73.5%▼ 2.9%
July76.7%86.1%▲ 12.3%
August75.0%––
September–––
October54.6%–in progress
November83.0%––
December84.3%––
Year-to-date average (Jan–Jul)82.2%71.0%▼ 13.7%

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
January01–
February00–
March00–
April00–
May00–
June01–
July15▲ 400.0%
August0––
September–––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)17▲ 600.0%

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 98.7% 603
  • Cancelled 1.3% 8

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

On time, leg by leg

  1. OAK–MDW86 88.4%
  2. MSP–MDW61 76.7%
  3. SJC–SNA58 98.3%
  4. ORF–BWI42 80.6%
  5. OMA–DCA41 82.9%
  6. DEN–ORF34 79.4%
  7. FLL–AUS33 48.5%
  8. DEN–LGB33 69.7%

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 35 35 88.6% 0
December 2024 20 20 95.0% 0
January 2025 27 27 88.9% 0
February 2025 26 26 84.6% 0
March 2025 55 55 72.7% 0
April 2025 45 45 84.4% 0
May 2025 40 40 92.5% 0
June 2025 33 33 75.8% 0
July 2025 31 30 76.7% 1
August 2025 4 4 75.0% 0
October 2025 22 22 54.6% 0
November 2025 53 53 83.0% 0
December 2025 51 51 84.3% 0
January 2026 15 14 78.6% 1
February 2026 22 22 63.6% 0
March 2026 29 29 44.8% 0
April 2026 6 6 50.0% 0
May 2026 1 1 100.0% 0
June 2026 35 34 73.5% 1
July 2026 41 36 86.1% 5

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