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Flight Reliability

WN 1957 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1957 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

78%
Arrive within 15 minutes
5 min
Average arrival delay
1.3%
Cancelled
4 min early
Median arrival delay

Based on 319 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(49 flights)
  • Tue92%(37 flights)
  • Wed88%(32 flights)
  • Thu68%(47 flights)
  • Fri78%(54 flights)
  • Sat86%(43 flights)
  • Sun66%(53 flights)
On-time by departure window
  • 3–6 AM86%(22 flights)
  • 6–9 AM94%(32 flights)
  • 9 AM–12 PM96%(28 flights)
  • 12–3 PM83%(77 flights)
  • 3–6 PM72%(47 flights)
  • 6–9 PM71%(52 flights)
  • 9 PM–12 AM61%(57 flights)
On-time trend by month
64%
May

Jun 62% → May 64% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%29
July 202550%30
August 202580%30
September 202587%30
October 202587%23
November 202583%23
December 202573%26
January 202691%33
February 202693%28
March 202685%33
April 202675%16
May 202664%14
Departures on time
71%
Diverted
0%
Flights flown
315
Months covered
12

Keep nerding

Based on 319 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.