On-Time Report

Airports › Des Moines (DSM) › September 2024

Airport month · September 2024

Des Moines International in September 2024

90.2%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In September 2024, reporting carriers scheduled 1,217 domestic departures from Des Moines International (DSM). 90.2% left less than 15 minutes late and 88.6% reached their destination on time; 0.2% were cancelled.

Nationally that month, 84.4% of flights departed on time and 83.9% arrived on time, so DSM departures were 5.8 points above the national departure figure.

A year earlier, in September 2023, the airport had 1,244 departures with 81.4% leaving on time: a change of +8.8 points, with flights down 2%.

Flights arriving at DSM that month were on time 84.2% of the time (1,219 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 49%, late-arriving aircraft 28% and national aviation system 20%.

Every scheduled departure from DSM in September 2024, judged by arrival at the destination.

September 2024 against a year earlier, the airport's year and the nation

MeasureSep 2024Sep 2023DSM, 12 months to Jul 2026All reported flights, Sep 2024
Departed on time90.2%81.4%78.5%84.4%
Arrived on time88.6%78.7%77.3%83.9%
Cancelled0.2%0.5%2.5%0.6%
Average departure delay (late minutes only)7.6 min17.0 min20.8 min10.6 min
Scheduled departures a day41424319,421
Scheduled departures1,2171,24415,584582,622

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
9E Endeavor Air21217%92.9%-9.1 min0.0%
UA United Airlines18115%89.5%-3.3 min0.0%
AA American Airlines15913%81.8%1.2 min0.6%
WN Southwest Airlines14512%94.5%-4.3 min0.0%
MQ Envoy Air12210%91.8%-8.0 min0.0%
G4 Allegiant Air1099%73.4%5.3 min0.9%
DL Delta Air Lines1089%92.6%-6.0 min0.0%
OO SkyWest Airlines827%95.1%-8.5 min1.2%
YX Republic Airline423%90.5%-10.7 min0.0%
OH PSA Airlines313%77.4%8.8 min0.0%
F9 Frontier Airlines262%76.9%37.3 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
DSM–DENDes Moines to Denver20690.3%4.2 min0.0%
DSM–ORDDes Moines to Chicago19787.8%-4.5 min0.5%
DSM–ATLDes Moines to Atlanta10892.6%-6.0 min0.0%
DSM–DFWDes Moines to Dallas/Fort Worth9786.6%-4.0 min0.0%
DSM–DTWDes Moines to Detroit8196.3%-12.0 min0.0%
DSM–MSPDes Moines to Minneapolis8187.7%-2.3 min0.0%
DSM–LGADes Moines to New York8096.3%-15.8 min0.0%
DSM–CLTDes Moines to Charlotte6078.3%4.9 min1.7%
DSM–DCADes Moines to Washington6083.3%2.9 min0.0%
DSM–STLDes Moines to St. Louis5598.2%-11.5 min0.0%
DSM–LASDes Moines to Las Vegas4887.5%-7.9 min0.0%
DSM–PHXDes Moines to Phoenix4795.7%-12.0 min0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of departures that left less than 15 minutes late, by scheduled hour (local time), September 2024.

Delay causes

BTS cause categoryShare of delay minutesNational, Sep 2024Minutes
Air carrier48.7%38.6%4,228
Late-arriving aircraft28.4%38.4%2,466
National Aviation System20.0%18.2%1,735
Extreme weather2.7%4.8%234
Security0.2%0.1%21
8,684 delay minutes on 133 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← August 2024October 2024 →

Questions and answers

How many flights left DSM on time in September 2024?

90.2% of 1,217 scheduled domestic departures left less than 15 minutes late, and 88.6% reached their destination on time. The national figures that month were 84.4% and 83.9%.

How does that compare with a year earlier?

In September 2023, 81.4% of 1,244 departures left on time and 0.5% were cancelled, against 90.2% and 0.2% in September 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for DSM · methodology · corrections.