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Flight Reliability

WN 777 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 777 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

77%
Arrive within 15 minutes
8 min
Average arrival delay
0.6%
Cancelled
4 min early
Median arrival delay

Based on 363 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon89%(55 flights)
  • Tue73%(56 flights)
  • Wed69%(55 flights)
  • Thu81%(58 flights)
  • Fri80%(60 flights)
  • Sat77%(34 flights)
  • Sun64%(42 flights)
On-time by departure window
  • 6–9 AM89%(118 flights)
  • 9 AM–12 PM92%(36 flights)
  • 12–3 PM64%(66 flights)
  • 3–6 PM64%(47 flights)
  • 6–9 PM74%(68 flights)
  • 9 PM–12 AM64%(25 flights)
On-time trend by month
85%
May

Jun 68% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%22
July 202575%24
August 202588%25
September 2025100%26
October 202561%31
November 202570%30
December 202571%31
January 202690%31
February 202677%34
March 202665%40
April 202676%33
May 202685%33
Departures on time
76%
Diverted
0.3%
Flights flown
360
Months covered
12

Keep nerding

Based on 363 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.