WN4994

WN4994 (Southwest Airlines) is a multi-stop service on 6 routes, busiest Chicago to Atlanta. Of 147 departures recorded from November 2024 to July 2026, 89.0% 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 periods8 periods
PeriodDepartures 2025Departures 2026Change vs last year
January21––
February2117▼ 19.0%
March42▼ 50.0%
April–––
May–––
June–27–
July–31–
August–––
September–––
October––in progress
November2––
December–––

according to the US BTS · November 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 periods8 periods
PeriodOn time 2025On time 2026Change vs last year
January85.0%––
February81.0%94.1%▲ 16.3%
March100.0%100.0%0.0%
April–––
May–––
June–92.6%–
July–96.8%–
August–––
September–––
October––in progress
November0.0%––
December–––

according to the US BTS · November 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · November 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods8 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January1––
February00–
March00–
April–––
May–––
June–0–
July–0–
August–––
September–––
October––in progress
November0––
December–––

according to the US BTS · November 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 99.3% 146
  • Cancelled 0.7% 1

Share of all recorded flights in the period, all legs. · Nov 3, 2024 → Jul 31, 2026

On time, leg by leg

  1. MDW–ATL68 85.1%
  2. HNL–SJC58 94.8%

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

Legs flown under this number

2
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
November 2024 16 16 81.3% 0
December 2024 6 6 100.0% 0
January 2025 21 20 85.0% 1
February 2025 21 21 81.0% 0
March 2025 4 4 100.0% 0
November 2025 2 2 0.0% 0
February 2026 17 17 94.1% 0
March 2026 2 2 100.0% 0
June 2026 27 27 92.6% 0
July 2026 31 31 96.8% 0

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