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Flight Reliability

WN 1955 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1955 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

76%
Arrive within 15 minutes
7 min
Average arrival delay
1.5%
Cancelled
5 min early
Median arrival delay

Based on 396 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(59 flights)
  • Tue81%(42 flights)
  • Wed91%(43 flights)
  • Thu76%(63 flights)
  • Fri85%(60 flights)
  • Sat52%(68 flights)
  • Sun86%(55 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM92%(148 flights)
  • 9 AM–12 PM48%(25 flights)
  • 12–3 PM78%(83 flights)
  • 3–6 PM62%(45 flights)
  • 6–9 PM77%(44 flights)
  • 9 PM–12 AM50%(44 flights)
On-time trend by month
41%
May

Jun 77% → May 41% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%31
July 202590%31
August 202577%22
September 202586%21
October 202591%34
November 202594%33
December 202590%31
January 202696%27
February 202679%34
March 202690%30
April 202645%42
May 202641%54
Departures on time
73%
Diverted
0%
Flights flown
390
Months covered
12

Keep nerding

Based on 396 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.