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Flight Reliability

WN 274 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 274 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

81%
Arrive within 15 minutes
3 min
Average arrival delay
0.9%
Cancelled
5 min early
Median arrival delay

Based on 322 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(42 flights)
  • Tue85%(53 flights)
  • Wed81%(53 flights)
  • Thu66%(41 flights)
  • Fri85%(39 flights)
  • Sat84%(45 flights)
  • Sun87%(45 flights)
On-time by departure window
  • 3–6 AM100%(10 flights)
  • 6–9 AM94%(49 flights)
  • 9 AM–12 PM89%(72 flights)
  • 12–3 PM90%(30 flights)
  • 3–6 PM73%(62 flights)
  • 6–9 PM74%(46 flights)
  • 9 PM–12 AM61%(49 flights)
On-time trend by month
90%
Mar

Jun 54% → Mar 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202554%26
July 202562%26
August 202595%19
September 202577%17
October 202597%31
November 202570%40
December 202576%54
January 202691%33
February 202693%27
March 202690%31
Departures on time
72%
Diverted
0.3%
Flights flown
318
Months covered
12

Keep nerding

Based on 322 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.