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WanderNerd

Flight Reliability

WN 2003 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2003 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

85%
Arrive within 15 minutes
3 min
Average arrival delay
0.3%
Cancelled
4 min early
Median arrival delay

Based on 374 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(68 flights)
  • Tue86%(44 flights)
  • Wed89%(44 flights)
  • Thu88%(68 flights)
  • Fri80%(65 flights)
  • Sat88%(40 flights)
  • Sun75%(44 flights)
On-time by departure window
  • 3–6 AM(2 flights)
  • 6–9 AM92%(167 flights)
  • 9 AM–12 PM87%(85 flights)
  • 12–3 PM78%(49 flights)
  • 3–6 PM68%(65 flights)
  • 6–9 PM(1 flights)
  • 9 PM–12 AM(4 flights)
On-time trend by month
97%
May

Jun 90% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202587%30
August 202589%45
September 202585%48
October 202559%22
November 202583%30
December 202548%31
January 202683%29
February 202696%25
March 202692%24
April 2026100%28
May 202697%31
Departures on time
81%
Diverted
0%
Flights flown
373
Months covered
12

Based on 374 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.