Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 1418 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1418 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

62%
Arrive within 15 minutes
20 min
Average arrival delay
0.3%
Cancelled
6 min
Median arrival delay

Based on 389 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon60%(65 flights)
  • Tue75%(60 flights)
  • Wed85%(60 flights)
  • Thu46%(65 flights)
  • Fri47%(64 flights)
  • Sat74%(43 flights)
  • Sun40%(30 flights)
On-time by departure window
  • 3–6 AM88%(33 flights)
  • 6–9 AM100%(25 flights)
  • 9 AM–12 PM88%(24 flights)
  • 12–3 PM44%(80 flights)
  • 3–6 PM50%(102 flights)
  • 6–9 PM55%(86 flights)
  • 9 PM–12 AM84%(37 flights)
On-time trend by month
44%
May

Jun 76% → May 44% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%29
July 202554%26
August 202576%29
September 202550%30
October 202546%41
November 202593%14
December 202591%23
January 202686%29
February 202661%28
March 202665%23
April 202654%54
May 202644%61
Departures on time
54%
Diverted
0.3%
Flights flown
387
Months covered
12

Keep nerding

Based on 389 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.