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Route Reliability

Des Moines → Las Vegas

DSM–LAS · 1,216 miles · Des Moines International Airport to Harry Reid International Airport

87
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
8 min
Average arrival delay
0.5%
Cancelled
595
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Southwest Airlines86%365 flights
  2. 2.Allegiant Air76%230 flights

What the data says

Morning-you made the right choice.

DSM–LAS flights departing between 9 AM–12 PM arrived on time 90% of the time, versus 50% between 6–9 PM.

Sunday scaries are real for this one.

DSM–LAS flights arrived on time 89% of the time on Wednesdays. On Sundays: 77%.

Southwest Airlines runs this route best.

Southwest Airlines arrived on time 86% of the time on this route; Allegiant Air managed 76%.

Flights on this route

The breakdown

On-time by weekday
  • Mon81%(104 flights)
  • Tue83%(53 flights)
  • Wed89%(73 flights)
  • Thu83%(98 flights)
  • Fri84%(104 flights)
  • Sat82%(54 flights)
  • Sun77%(105 flights)
On-time by departure window
  • 6–9 AM81%(63 flights)
  • 9 AM–12 PM90%(129 flights)
  • 12–3 PM87%(264 flights)
  • 3–6 PM73%(82 flights)
  • 6–9 PM50%(26 flights)
  • 9 PM–12 AM63%(27 flights)
On-time trend by month
77%
May

Jun 96% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202596%51
July 202571%52
August 202588%50
September 202585%46
October 202593%53
November 202587%47
December 202566%50
January 202681%48
February 202684%44
March 202685%52
April 202675%47
May 202677%51

Keep nerding

Based on 595 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.