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Flight Reliability

WN 1861 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1861 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

87%
Arrive within 15 minutes
1 min
Average arrival delay
0%
Cancelled
6 min early
Median arrival delay

Based on 413 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon91%(68 flights)
  • Tue91%(54 flights)
  • Wed84%(56 flights)
  • Thu87%(68 flights)
  • Fri83%(66 flights)
  • Sat86%(44 flights)
  • Sun88%(57 flights)
On-time by departure window
  • 3–6 AM100%(23 flights)
  • 6–9 AM94%(65 flights)
  • 9 AM–12 PM89%(110 flights)
  • 12–3 PM88%(76 flights)
  • 3–6 PM88%(58 flights)
  • 6–9 PM76%(62 flights)
  • 9 PM–12 AM68%(19 flights)
On-time trend by month
84%
May

Jun 87% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%31
July 202590%31
August 202593%42
September 202595%43
October 202594%31
November 202580%51
December 202581%47
January 202694%33
February 202676%25
March 202675%20
April 202693%28
May 202684%31
Departures on time
81%
Diverted
0%
Flights flown
413
Months covered
12

Keep nerding

Based on 413 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.