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Flight Reliability

WN 849 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 849 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

83%
Arrive within 15 minutes
4 min
Average arrival delay
0%
Cancelled
5 min early
Median arrival delay

Based on 426 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(67 flights)
  • Tue87%(54 flights)
  • Wed89%(52 flights)
  • Thu86%(66 flights)
  • Fri76%(66 flights)
  • Sat85%(58 flights)
  • Sun75%(61 flights)
On-time by departure window
  • 3–6 AM100%(16 flights)
  • 6–9 AM96%(119 flights)
  • 9 AM–12 PM91%(74 flights)
  • 12–3 PM77%(26 flights)
  • 3–6 PM74%(69 flights)
  • 6–9 PM69%(86 flights)
  • 9 PM–12 AM71%(34 flights)
On-time trend by month
93%
May

Jun 77% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%52
July 202570%57
August 202581%26
September 202595%21
October 202594%35
November 202581%31
December 202575%40
January 202695%37
February 202688%34
March 202674%31
April 202687%30
May 202693%30
Departures on time
77%
Diverted
0.5%
Flights flown
424
Months covered
12

Keep nerding

Based on 426 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.