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Route Reliability

St. Petersburg → Des Moines

PIE–DSM · 1,126 miles · St. Pete–Clearwater International Airport to Des Moines International Airport

84
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
2 min
Average arrival delay
1.5%
Cancelled
201
Flights in the data

Data through May 2026.

Allegiant Air is the only airline in this data on this route, arriving on time 82% of the time across 201 flights. No comparison to make.

What the data says

Morning-you made the right choice.

PIE–DSM flights departing between 6–9 AM arrived on time 94% of the time, versus 72% between 6–9 PM.

Thursdays have been rough.

PIE–DSM flights arrived on time 89% of the time on Wednesdays and just 63% on Thursdays. That gap is worth planning around.

Slipping a little lately.

PIE–DSM flights arrived on time 79% of the time over the last three months in the data, compared with 83% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon89%(52 flights)
  • Tue—(2 flights)
  • Wed89%(37 flights)
  • Thu63%(16 flights)
  • Fri82%(51 flights)
  • Sat87%(23 flights)
  • Sun65%(17 flights)
On-time by departure window
  • 6–9 AM94%(52 flights)
  • 9 AM–12 PM91%(22 flights)
  • 12–3 PM88%(16 flights)
  • 3–6 PM75%(60 flights)
  • 6–9 PM72%(43 flights)
  • 9 PM–12 AM—(5 flights)
On-time trend by month
80%
May

Jun 73% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%26
July 202581%26
August 202591%21
November 202583%12
December 202563%16
January 202693%14
February 202693%15
March 202673%22
April 202685%13
May 202680%15

Same trip, other airports

Keep nerding

Based on 201 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.