Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 938 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 938 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
1 min early
Average arrival delay
0.5%
Cancelled
6 min early
Median arrival delay

Based on 378 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(51 flights)
  • Tue80%(61 flights)
  • Wed84%(61 flights)
  • Thu83%(52 flights)
  • Fri82%(51 flights)
  • Sat89%(46 flights)
  • Sun89%(52 flights)
On-time by departure window
  • 3–6 AM96%(23 flights)
  • 6–9 AM95%(134 flights)
  • 9 AM–12 PM80%(94 flights)
  • 12–3 PM65%(72 flights)
  • 3–6 PM85%(33 flights)
  • 6–9 PM78%(18 flights)
On-time trend by month
81%
May

Jun 94% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202594%32
July 202597%31
August 202594%31
September 202587%30
October 202575%47
November 202593%29
December 202590%30
January 202684%31
February 202678%27
March 202658%26
April 202676%29
May 202681%31
Departures on time
80%
Diverted
0.5%
Flights flown
374
Months covered
12

Keep nerding

Based on 378 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.