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WanderNerd

Flight Reliability

WN 3150 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3150 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

71%
Arrive within 15 minutes
11 min
Average arrival delay
0.9%
Cancelled
1 min early
Median arrival delay

Based on 328 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(44 flights)
  • Tue83%(64 flights)
  • Wed59%(66 flights)
  • Thu67%(46 flights)
  • Fri66%(41 flights)
  • Sat67%(21 flights)
  • Sun79%(43 flights)
On-time by departure window
  • 6–9 AM95%(62 flights)
  • 9 AM–12 PM93%(30 flights)
  • 12–3 PM63%(75 flights)
  • 3–6 PM64%(110 flights)
  • 6–9 PM53%(32 flights)
  • 9 PM–12 AM63%(16 flights)
On-time trend by month
50%
May

Jun 60% → May 50% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%48
July 202561%61
October 202597%35
November 202558%24
December 202565%20
January 202684%25
February 202678%18
March 202693%30
April 202669%26
May 202650%26
Departures on time
68%
Diverted
0%
Flights flown
325
Months covered
12

Based on 328 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.