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Flight Reliability

WN 2257 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2257 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

81%
Arrive within 15 minutes
2 min
Average arrival delay
0.5%
Cancelled
7 min early
Median arrival delay

Based on 418 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(59 flights)
  • Tue87%(61 flights)
  • Wed87%(60 flights)
  • Thu78%(60 flights)
  • Fri80%(61 flights)
  • Sat85%(59 flights)
  • Sun70%(54 flights)
On-time by departure window
  • 3–6 AM96%(55 flights)
  • 6–9 AM94%(131 flights)
  • 9 AM–12 PM85%(81 flights)
  • 12–3 PM71%(38 flights)
  • 3–6 PM54%(65 flights)
  • 6–9 PM64%(44 flights)
On-time trend by month
72%
May

Jun 76% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%29
July 2025100%28
August 202593%30
September 202590%30
October 202577%34
November 202571%34
December 202576%37
January 202684%32
February 202674%27
March 202681%31
April 202685%48
May 202672%54
Departures on time
78%
Diverted
0.5%
Flights flown
414
Months covered
12

Keep nerding

Based on 418 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.