WN1786

WN1786 (Southwest Airlines) is a multi-stop service on 31 routes, busiest Detroit to Chicago. Of 674 departures recorded from October 2024 to July 2026, 78.5% 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
January3230▼ 6.3%
February3235▲ 9.4%
March2632▲ 23.1%
April2830▲ 7.1%
May3031▲ 3.3%
June307▼ 76.7%
July316▼ 80.6%
August51––
September56––
October75–in progress
November29––
December29––
Year to date (Jan–Jul)209171▼ 18.2%

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
January81.3%83.3%▲ 2.6%
February87.5%74.3%▼ 15.1%
March92.3%84.4%▼ 8.6%
April78.6%60.0%▼ 23.6%
May79.3%19.4%▼ 75.6%
June86.7%57.1%▼ 34.1%
July71.0%83.3%▲ 17.4%
August84.3%––
September96.4%––
October69.3%–in progress
November96.4%––
December75.0%––
Year-to-date average (Jan–Jul)82.4%66.0%▼ 19.9%

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–
February00–
March00–
April00–
May10▼ 100.0%
June00–
July00–
August0––
September0––
October0–in progress
November1––
December1––
Year to date (Jan–Jul)10▼ 100.0%

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 99.6% 671
  • Cancelled 0.4% 3

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 2026

On time, leg by leg

  1. DTW–MDW69 89.9%
  2. PHL–BNA57 78.6%
  3. MDW–SFO57 36.8%
  4. OMA–DEN46 95.6%
  5. BWI–MHT43 69.8%
  6. OAK–SAN42 95.2%
  7. ONT–LAS36 91.7%
  8. AUS–MCO33 84.9%

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 20 20 100.0% 0
November 2024 12 12 83.3% 0
December 2024 22 22 81.8% 0
January 2025 32 32 81.3% 0
February 2025 32 32 87.5% 0
March 2025 26 26 92.3% 0
April 2025 28 28 78.6% 0
May 2025 30 29 79.3% 1
June 2025 30 30 86.7% 0
July 2025 31 31 71.0% 0
August 2025 51 51 84.3% 0
September 2025 56 56 96.4% 0
October 2025 75 75 69.3% 0
November 2025 29 28 96.4% 1
December 2025 29 28 75.0% 1
January 2026 30 30 83.3% 0
February 2026 35 35 74.3% 0
March 2026 32 32 84.4% 0
April 2026 30 30 60.0% 0
May 2026 31 31 19.4% 0
June 2026 7 7 57.1% 0
July 2026 6 6 83.3% 0

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