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Flight Reliability

WN 418 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 418 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
9 min
Average arrival delay
0.6%
Cancelled
3 min early
Median arrival delay

Based on 346 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(53 flights)
  • Tue86%(43 flights)
  • Wed79%(43 flights)
  • Thu74%(53 flights)
  • Fri76%(55 flights)
  • Sat70%(47 flights)
  • Sun90%(49 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM93%(44 flights)
  • 9 AM–12 PM79%(71 flights)
  • 12–3 PM78%(103 flights)
  • 3–6 PM65%(60 flights)
  • 6–9 PM80%(46 flights)
  • 9 PM–12 AM72%(18 flights)
On-time trend by month
94%
May

Jun 65% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%26
July 202563%27
August 202590%31
September 202587%30
October 202574%31
November 202583%30
December 202561%31
January 202690%10
February 202667%18
March 202668%44
April 202694%34
May 202694%31
Departures on time
75%
Diverted
0.3%
Flights flown
343
Months covered
12

Keep nerding

Based on 346 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.