Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 1003 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1003 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

84%
Arrive within 15 minutes
4 min
Average arrival delay
1.9%
Cancelled
6 min early
Median arrival delay

Based on 425 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(62 flights)
  • Tue94%(53 flights)
  • Wed95%(55 flights)
  • Thu76%(62 flights)
  • Fri86%(57 flights)
  • Sat87%(61 flights)
  • Sun73%(66 flights)
On-time by departure window
  • 3–6 AM97%(29 flights)
  • 6–9 AM94%(65 flights)
  • 9 AM–12 PM94%(50 flights)
  • 12–3 PM84%(62 flights)
  • 3–6 PM82%(122 flights)
  • 6–9 PM69%(88 flights)
On-time trend by month
100%
May

Jun 57% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202557%28
July 202576%29
August 202573%30
September 202583%30
October 202578%36
November 202583%53
December 202586%51
January 202691%32
February 202696%27
March 202694%31
April 202685%33
May 2026100%36
Departures on time
79%
Diverted
0.2%
Flights flown
416
Months covered
12

Keep nerding

Based on 425 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.