WN1674

WN1674 (Southwest Airlines) is a multi-stop service on 34 routes, busiest Chicago to Phoenix. Of 725 departures recorded from October 2024 to July 2026, 74.3% 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
January29290.0%
February2734▲ 25.9%
March2732▲ 18.5%
April3837▼ 2.6%
May4739▼ 17.0%
June4619▼ 58.7%
July4717▼ 63.8%
August31––
September26––
October39–in progress
November49––
December59––
Year to date (Jan–Jul)261207▼ 20.7%

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
January96.6%93.1%▼ 3.6%
February100.0%52.9%▼ 47.1%
March88.9%90.6%▲ 2.0%
April92.1%59.5%▼ 35.4%
May89.4%69.2%▼ 22.5%
June56.5%68.4%▲ 21.1%
July48.9%35.3%▼ 27.9%
August71.0%––
September84.6%––
October71.8%–in progress
November72.9%––
December66.1%––
Year-to-date average (Jan–Jul)81.8%67.0%▼ 18.0%

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–
July00–
August0––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)00

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 99.9% 724
  • Cancelled 0.1% 1

Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 29, 2026

On time, leg by leg

  1. MDW–PHX96 92.7%
  2. MCO–RIC61 63.9%
  3. SJC–LAS51 94.1%
  4. DJT–BWI49 69.4%
  5. MCO–BWI45 81.8%
  6. MDW–GRR42 90.5%
  7. MDW–MCO33 90.9%
  8. BWI–BOS31 74.2%

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 17 17 88.2% 0
November 2024 19 19 94.7% 0
December 2024 17 17 70.6% 0
January 2025 29 29 96.6% 0
February 2025 27 27 100.0% 0
March 2025 27 27 88.9% 0
April 2025 38 38 92.1% 0
May 2025 47 47 89.4% 0
June 2025 46 46 56.5% 0
July 2025 47 47 48.9% 0
August 2025 31 31 71.0% 0
September 2025 26 26 84.6% 0
October 2025 39 39 71.8% 0
November 2025 49 48 72.9% 1
December 2025 59 59 66.1% 0
January 2026 29 29 93.1% 0
February 2026 34 34 52.9% 0
March 2026 32 32 90.6% 0
April 2026 37 37 59.5% 0
May 2026 39 39 69.2% 0
June 2026 19 19 68.4% 0
July 2026 17 17 35.3% 0

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