Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 154 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 154 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

73%
Arrive within 15 minutes
13 min
Average arrival delay
1.2%
Cancelled
2 min early
Median arrival delay

Based on 579 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(78 flights)
  • Tue67%(82 flights)
  • Wed74%(83 flights)
  • Thu57%(72 flights)
  • Fri77%(74 flights)
  • Sat85%(71 flights)
  • Sun76%(110 flights)
On-time by departure window
  • 6–9 AM91%(107 flights)
  • 9 AM–12 PM86%(121 flights)
  • 12–3 PM88%(40 flights)
  • 3–6 PM69%(168 flights)
  • 6–9 PM47%(134 flights)
On-time trend by month
53%
May

Jun 67% → May 53% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%69
July 202559%75
August 202581%47
September 202580%39
October 202575%24
November 202588%43
December 202594%63
January 202689%35
February 202671%28
March 202663%32
April 202667%55
May 202653%60
Departures on time
68%
Diverted
0.3%
Flights flown
570
Months covered
12

Keep nerding

Based on 579 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.