Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 2148 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2148 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

82%
Arrive within 15 minutes
1 min
Average arrival delay
0.3%
Cancelled
7 min early
Median arrival delay

Based on 387 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(54 flights)
  • Tue93%(57 flights)
  • Wed86%(57 flights)
  • Thu72%(54 flights)
  • Fri85%(52 flights)
  • Sat89%(46 flights)
  • Sun69%(62 flights)
On-time by departure window
  • 3–6 AM92%(13 flights)
  • 6–9 AM93%(159 flights)
  • 9 AM–12 PM91%(90 flights)
  • 12–3 PM71%(17 flights)
  • 3–6 PM74%(31 flights)
  • 6–9 PM50%(42 flights)
  • 9 PM–12 AM50%(30 flights)
On-time trend by month
43%
May

Jun 77% → May 43% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%35
July 202590%30
August 202597%31
September 202597%30
October 202562%34
November 202597%29
December 202597%31
January 202691%46
February 202684%37
March 202673%22
April 202670%27
May 202643%30
Departures on time
80%
Diverted
1.0%
Flights flown
382
Months covered
12

Keep nerding

Based on 387 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.