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Flight Reliability

WN 940 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 940 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

76%
Arrive within 15 minutes
7 min
Average arrival delay
0.8%
Cancelled
3 min early
Median arrival delay

Based on 399 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon61%(59 flights)
  • Tue71%(62 flights)
  • Wed81%(59 flights)
  • Thu68%(56 flights)
  • Fri80%(60 flights)
  • Sat94%(51 flights)
  • Sun77%(48 flights)
On-time by departure window
  • 3–6 AM—(8 flights)
  • 6–9 AM97%(72 flights)
  • 9 AM–12 PM92%(51 flights)
  • 12–3 PM61%(56 flights)
  • 3–6 PM61%(129 flights)
  • 6–9 PM79%(71 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
45%
May

Jun 68% → May 45% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%38
July 202566%38
August 202588%49
September 202590%52
October 202568%47
November 202568%19
December 202588%17
January 2026100%30
February 202682%28
March 202674%19
April 202663%27
May 202645%31
Departures on time
74%
Diverted
0.3%
Flights flown
395
Months covered
12

Keep nerding

Based on 399 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.