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WanderNerd

Flight Reliability

WN 1848 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1848 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
6 min
Average arrival delay
0.9%
Cancelled
2 min early
Median arrival delay

Based on 316 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(44 flights)
  • Tue71%(44 flights)
  • Wed80%(45 flights)
  • Thu70%(43 flights)
  • Fri74%(46 flights)
  • Sat95%(43 flights)
  • Sun74%(46 flights)
On-time by departure window
  • 3–6 AM90%(10 flights)
  • 6–9 AM91%(57 flights)
  • 9 AM–12 PM93%(15 flights)
  • 12–3 PM87%(70 flights)
  • 3–6 PM66%(85 flights)
  • 6–9 PM66%(73 flights)
  • 9 PM–12 AM(1 flights)
On-time trend by month
63%
May

Jun 75% → May 63% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202575%32
July 202560%30
August 202587%31
September 202593%30
October 2025100%30
November 202582%17
December 202592%13
January 202692%24
February 202688%17
March 202671%28
April 202641%29
May 202663%30
Departures on time
72%
Diverted
0.6%
Flights flown
311
Months covered
12

Based on 316 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.