WN4855

WN4855 (Southwest Airlines) is a multi-stop service on 12 routes, busiest Amarillo to Las Vegas. Of 180 departures recorded from October 2024 to July 2026, 79.8% 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 periods11 periods
PeriodDepartures 2025Departures 2026Change vs last year
January423▼ 92.9%
February302▼ 93.3%
March5––
April–3–
May–––
June–1–
July–1–
August–––
September–––
October22–in progress
November6––
December11––

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 periods11 periods
PeriodOn time 2025On time 2026Change vs last year
January95.0%33.3%▼ 64.9%
February80.0%100.0%▲ 25.0%
March40.0%––
April–100.0%–
May–––
June–100.0%–
July–100.0%–
August–––
September–––
October63.6%–in progress
November50.0%––
December63.6%––

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 periods11 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January20▼ 100.0%
February00–
March0––
April–0–
May–––
June–0–
July–0–
August–––
September–––
October0–in progress
November0––
December0––

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 98.9% 178
  • Cancelled 1.1% 2

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 3, 2026

On time, leg by leg

  1. AMA–LAS66 83.1%
  2. DAL–AMA33 90.6%

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

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
AMA LAS Rick Husband Amarillo International Airport – Harry Reid International Airport 1,218 6.9 min 83.1% 66
DAL AMA Dallas Love Field – Rick Husband Amarillo International Airport 520 2.3 min 90.6% 33
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 29 29 82.8% 0
November 2024 11 11 100.0% 0
December 2024 14 14 78.6% 0
January 2025 42 40 95.0% 2
February 2025 30 30 80.0% 0
March 2025 5 5 40.0% 0
October 2025 22 22 63.6% 0
November 2025 6 6 50.0% 0
December 2025 11 11 63.6% 0
January 2026 3 3 33.3% 0
February 2026 2 2 100.0% 0
April 2026 3 3 100.0% 0
June 2026 1 1 100.0% 0
July 2026 1 1 100.0% 0

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