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Flight Reliability

WN 1403 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1403 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

73%
Arrive within 15 minutes
10 min
Average arrival delay
0.7%
Cancelled
1 min early
Median arrival delay

Based on 429 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(73 flights)
  • Tue76%(54 flights)
  • Wed89%(52 flights)
  • Thu53%(70 flights)
  • Fri85%(71 flights)
  • Sat89%(45 flights)
  • Sun57%(61 flights)
On-time by departure window
  • 6–9 AM97%(36 flights)
  • 9 AM–12 PM83%(53 flights)
  • 12–3 PM73%(212 flights)
  • 3–6 PM64%(115 flights)
  • 6–9 PM40%(10 flights)
On-time trend by month
41%
May

Jun 71% → May 41% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%56
July 202562%60
August 202571%35
September 202587%30
October 202590%31
November 202573%33
December 202579%42
January 202685%33
February 202688%24
March 202671%35
April 202660%25
May 202641%22
Departures on time
69%
Diverted
0%
Flights flown
426
Months covered
12

Keep nerding

Based on 429 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.