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Flight Reliability

WN 510 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 510 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
1 min
Average arrival delay
0%
Cancelled
5 min early
Median arrival delay

Based on 466 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(69 flights)
  • Tue85%(61 flights)
  • Wed77%(60 flights)
  • Thu73%(69 flights)
  • Fri78%(67 flights)
  • Sat87%(46 flights)
  • Sun87%(94 flights)
On-time by departure window
  • 3–6 AM100%(31 flights)
  • 6–9 AM87%(78 flights)
  • 9 AM–12 PM85%(102 flights)
  • 12–3 PM90%(58 flights)
  • 3–6 PM76%(100 flights)
  • 6–9 PM65%(93 flights)
  • 9 PM–12 AM—(4 flights)
On-time trend by month
72%
May

Jun 81% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%41
July 202588%43
August 202588%42
September 202586%42
October 202580%39
November 202593%30
December 202587%31
January 202683%36
February 202667%33
March 202678%55
April 202668%38
May 202672%36
Departures on time
78%
Diverted
0%
Flights flown
466
Months covered
12

Keep nerding

Based on 466 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.