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Route Reliability

Phoenix → Des Moines

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

80
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
3 min
Average arrival delay
1.4%
Cancelled
1,073
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.American Airlines80%897 flights
  2. 2.Southwest Airlines73%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.

PHX–DSM flights departing between 6–9 AM arrived on time 85% of the time, versus 70% between 6–9 PM.

Skip Monday if you can.

PHX–DSM flights arrived on time 87% of the time on Wednesdays. On Mondays: 73%.

American Airlines has a slight edge here.

American Airlines arrived on time 80% of the time on this route; Southwest Airlines managed 73%.

Ticking up lately.

PHX–DSM flights arrived on time 80% of the time over the last three months in the data, compared with 77% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon73%(167 flights)
  • Tue83%(123 flights)
  • Wed87%(128 flights)
  • Thu81%(165 flights)
  • Fri80%(162 flights)
  • Sat76%(140 flights)
  • Sun75%(169 flights)
On-time by departure window
  • 6–9 AM85%(247 flights)
  • 9 AM–12 PM79%(223 flights)
  • 12–3 PM83%(224 flights)
  • 3–6 PM77%(62 flights)
  • 6–9 PM70%(297 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
75%
May

Jun 79% → May 75% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%66
July 202575%61
August 202581%70
September 202587%67
October 202577%106
November 202574%90
December 202576%95
January 202678%89
February 202678%90
March 202675%122
April 202690%104
May 202675%94

Keep nerding

Based on 1,073 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.