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WanderNerd

Flight Reliability

WN 1849 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1849 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

72%
Arrive within 15 minutes
12 min
Average arrival delay
1.7%
Cancelled
1 min early
Median arrival delay

Based on 352 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(52 flights)
  • Tue75%(48 flights)
  • Wed85%(48 flights)
  • Thu58%(50 flights)
  • Fri76%(49 flights)
  • Sat78%(45 flights)
  • Sun57%(54 flights)
On-time by departure window
  • 6–9 AM89%(44 flights)
  • 9 AM–12 PM92%(51 flights)
  • 12–3 PM75%(20 flights)
  • 3–6 PM70%(47 flights)
  • 6–9 PM65%(141 flights)
  • 9 PM–12 AM58%(43 flights)
On-time trend by month
28%
May

Jun 87% → May 28% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%30
July 202583%30
August 202584%31
September 202579%28
October 202546%22
November 202583%30
December 202571%31
January 202686%29
February 2026100%27
March 202676%21
April 202652%31
May 202628%36
Departures on time
66%
Diverted
0%
Flights flown
346
Months covered
12

Based on 352 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.