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Flight Reliability

WN 3103 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3103 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
4 min
Average arrival delay
0.8%
Cancelled
4 min early
Median arrival delay

Based on 372 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(55 flights)
  • Tue96%(47 flights)
  • Wed92%(47 flights)
  • Thu80%(55 flights)
  • Fri80%(56 flights)
  • Sat79%(48 flights)
  • Sun67%(61 flights)
On-time by departure window
  • 3–6 AM94%(16 flights)
  • 9 AM–12 PM91%(204 flights)
  • 12–3 PM68%(19 flights)
  • 3–6 PM63%(92 flights)
  • 6–9 PM66%(38 flights)
On-time trend by month
84%
May

Jun 80% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202574%35
August 202594%32
September 2025100%29
October 202573%48
November 202593%30
December 202587%31
January 202677%30
February 202664%25
March 202645%20
April 202686%28
May 202684%31
Departures on time
77%
Diverted
0%
Flights flown
369
Months covered
12

Keep nerding

Based on 372 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.