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Flight Reliability

WN 4489 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4489 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

81%
Arrive within 15 minutes
5 min
Average arrival delay
2.0%
Cancelled
8 min early
Median arrival delay

Based on 196 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(31 flights)
  • Tue88%(17 flights)
  • Wed94%(18 flights)
  • Thu87%(30 flights)
  • Fri69%(29 flights)
  • Sat79%(28 flights)
  • Sun76%(38 flights)
On-time by departure window
  • 3–6 AM94%(64 flights)
  • 6–9 AM87%(15 flights)
  • 9 AM–12 PM100%(15 flights)
  • 12–3 PM—(1 flights)
  • 3–6 PM47%(32 flights)
  • 6–9 PM78%(60 flights)
  • 9 PM–12 AM—(4 flights)
On-time trend by month
94%
May

Jun 83% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%12
August 202541%17
September 202553%17
November 202576%25
December 202584%31
March 2026100%13
April 202696%27
May 202694%31
Departures on time
76%
Diverted
0.5%
Flights flown
191
Months covered
11

Keep nerding

Based on 196 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.