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Flight Reliability

WN 2157 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2157 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

70%
Arrive within 15 minutes
12 min
Average arrival delay
0%
Cancelled
3 min early
Median arrival delay

Based on 400 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon59%(61 flights)
  • Tue76%(54 flights)
  • Wed71%(55 flights)
  • Thu65%(60 flights)
  • Fri64%(59 flights)
  • Sat83%(36 flights)
  • Sun73%(75 flights)
On-time by departure window
  • 3–6 AM100%(26 flights)
  • 6–9 AM92%(62 flights)
  • 9 AM–12 PM90%(41 flights)
  • 12–3 PM66%(59 flights)
  • 3–6 PM50%(137 flights)
  • 6–9 PM67%(67 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
55%
May

Jun 49% → May 55% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202549%37
July 202555%42
August 202552%27
September 202558%26
October 202590%31
November 202591%42
December 202593%44
January 202693%14
February 202679%19
March 202673%22
April 202664%45
May 202655%51
Departures on time
68%
Diverted
0%
Flights flown
400
Months covered
12

Keep nerding

Based on 400 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.