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Flight Reliability

WN 1400 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1400 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

77%
Arrive within 15 minutes
7 min
Average arrival delay
1.5%
Cancelled
6 min early
Median arrival delay

Based on 392 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(61 flights)
  • Tue88%(48 flights)
  • Wed73%(52 flights)
  • Thu78%(60 flights)
  • Fri75%(61 flights)
  • Sat78%(45 flights)
  • Sun72%(58 flights)
On-time by departure window
  • 3–6 AM98%(43 flights)
  • 6–9 AM93%(27 flights)
  • 9 AM–12 PM83%(78 flights)
  • 12–3 PM73%(74 flights)
  • 3–6 PM92%(36 flights)
  • 6–9 PM62%(127 flights)
On-time trend by month
68%
May

Jun 93% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%29
July 202594%31
August 202559%32
September 202559%34
October 202588%25
November 202577%30
December 202573%30
January 202693%43
February 202684%43
March 202671%28
April 202666%29
May 202668%31
Departures on time
73%
Diverted
0.3%
Flights flown
385
Months covered
12

Keep nerding

Based on 392 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.