WN1807

WN1807 (Southwest Airlines) is a multi-stop service on 38 routes, busiest Seattle to Chicago. Of 595 departures recorded from October 2024 to July 2026, 76.9% 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
January2714▼ 48.1%
February2616▼ 38.5%
March3736▼ 2.7%
April2634▲ 30.8%
May2235▲ 59.1%
June3914▼ 64.1%
July4512▼ 73.3%
August21––
September20––
October34–in progress
November32––
December31––
Year to date (Jan–Jul)222161▼ 27.5%

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
January85.2%92.9%▲ 9.0%
February69.2%68.8%▼ 0.7%
March91.9%75.0%▼ 18.4%
April88.5%88.2%▼ 0.2%
May86.4%85.7%▼ 0.8%
June61.5%85.7%▲ 39.3%
July54.6%58.3%▲ 6.9%
August61.9%––
September80.0%––
October63.6%–in progress
November67.7%––
December83.9%––
Year-to-date average (Jan–Jul)76.7%79.2%▲ 3.2%

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–
May00–
June00–
July10▼ 100.0%
August0––
September0––
October1–in progress
November1––
December0––
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 99.5% 592
  • Cancelled 0.5% 3

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

On time, leg by leg

  1. SEA–MDW58 91.4%
  2. HOU–CRP45 80.0%
  3. DAL–LAX43 50.0%
  4. LGA–DEN42 90.5%
  5. STL–MCI33 84.9%
  6. DEN–SMF33 78.8%
  7. MCO–DAL31 66.7%

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 19 19 100.0% 0
November 2024 35 35 82.9% 0
December 2024 20 20 75.0% 0
January 2025 27 27 85.2% 0
February 2025 26 26 69.2% 0
March 2025 37 37 91.9% 0
April 2025 26 26 88.5% 0
May 2025 22 22 86.4% 0
June 2025 39 39 61.5% 0
July 2025 45 44 54.6% 1
August 2025 21 21 61.9% 0
September 2025 20 20 80.0% 0
October 2025 34 33 63.6% 1
November 2025 32 31 67.7% 1
December 2025 31 31 83.9% 0
January 2026 14 14 92.9% 0
February 2026 16 16 68.8% 0
March 2026 36 36 75.0% 0
April 2026 34 34 88.2% 0
May 2026 35 35 85.7% 0
June 2026 14 14 85.7% 0
July 2026 12 12 58.3% 0

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