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Flight Reliability

WN 1351 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1351 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

80%
Arrive within 15 minutes
5 min
Average arrival delay
0.8%
Cancelled
5 min early
Median arrival delay

Based on 394 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(58 flights)
  • Tue68%(66 flights)
  • Wed80%(64 flights)
  • Thu93%(55 flights)
  • Fri77%(60 flights)
  • Sat85%(27 flights)
  • Sun87%(61 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM98%(84 flights)
  • 9 AM–12 PM93%(70 flights)
  • 12–3 PM72%(135 flights)
  • 3–6 PM57%(28 flights)
  • 6–9 PM71%(55 flights)
  • 9 PM–12 AM72%(18 flights)
On-time trend by month
62%
May

Jun 67% → May 62% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%39
July 202565%37
August 202580%30
September 202583%30
October 2025100%31
November 202595%43
December 202575%44
January 202690%29
February 202679%24
March 202697%31
April 202667%27
May 202662%26
Departures on time
75%
Diverted
0%
Flights flown
391
Months covered
12

Keep nerding

Based on 394 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.