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Route Reliability

Des Moines → Phoenix

DSM–PHX · 1,149 miles · Des Moines International Airport to Phoenix Sky Harbor International Airport

81
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
14 min
Average arrival delay
1.5%
Cancelled
1,069
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.American Airlines83%893 flights
  2. 2.Southwest Airlines75%169 flights

Not enough history to rank: Frontier Airlines (7 flights). We rank airlines only after 100 flights on the route.

What the data says

Morning-you made the right choice.

DSM–PHX flights departing between 6–9 AM arrived on time 96% of the time, versus 66% between 3–6 PM.

Sunday scaries are real for this one.

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

American Airlines runs this route best.

American Airlines arrived on time 83% of the time on this route; Southwest Airlines managed 75%.

Ticking up lately.

DSM–PHX flights arrived on time 83% of the time over the last three months in the data, compared with 80% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon78%(166 flights)
  • Tue84%(124 flights)
  • Wed89%(125 flights)
  • Thu83%(165 flights)
  • Fri85%(162 flights)
  • Sat80%(140 flights)
  • Sun77%(169 flights)
On-time by departure window
  • 3–6 AM87%(309 flights)
  • 6–9 AM96%(50 flights)
  • 9 AM–12 PM80%(35 flights)
  • 12–3 PM81%(425 flights)
  • 3–6 PM66%(65 flights)
  • 6–9 PM77%(167 flights)
On-time trend by month
77%
May

Jun 92% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202592%66
July 202587%60
August 202588%68
September 202587%67
October 202576%105
November 202573%89
December 202575%96
January 202681%89
February 202683%90
March 202683%122
April 202690%105
May 202677%94

Keep nerding

Based on 1,069 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.