Airports › Des Moines (DSM) › July 2025
Airport month · July 2025
Des Moines International in July 2025
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 July 2025, reporting carriers scheduled 1,367 domestic departures from Des Moines International (DSM). 75.3% left less than 15 minutes late and 72.1% reached their destination on time; 3.5% were cancelled.
Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so DSM departures were 5.6 points above the national departure figure.
A year earlier, in July 2024, the airport had 1,351 departures with 71.9% leaving on time: a change of +3.4 points, with flights up 1%.
Flights arriving at DSM that month were on time 66.2% of the time (1,366 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 39%, late-arriving aircraft 27% and national aviation system 19%.
- On time 72.1%
- Arrived 15+ minutes late 23.9%
- Cancelled 3.5%
- Diverted 0.5%
July 2025 against a year earlier, the airport's year and the nation
| Measure | Jul 2025 | Jul 2024 | DSM, 12 months to Jul 2026 | All reported flights, Jul 2025 |
|---|---|---|---|---|
| Departed on time | 75.3% | 71.9% | 78.5% | 69.7% |
| Arrived on time | 72.1% | 69.4% | 77.3% | 69.0% |
| Cancelled | 3.5% | 3.8% | 2.5% | 2.5% |
| Average departure delay (late minutes only) | 24.9 min | 24.4 min | 20.8 min | 24.3 min |
| Scheduled departures a day | 46 | 45 | 43 | 21,048 |
| Scheduled departures | 1,367 | 1,351 | 15,584 | 631,428 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| OO SkyWest Airlines | 274 | 20% | 69.0% | 23.0 min | 3.6% |
| G4 Allegiant Air | 224 | 16% | 76.8% | 14.0 min | 0.0% |
| AA American Airlines | 190 | 14% | 64.2% | 31.1 min | 5.3% |
| UA United Airlines | 161 | 12% | 64.0% | 24.5 min | 2.5% |
| WN Southwest Airlines | 150 | 11% | 86.0% | 0.6 min | 0.7% |
| DL Delta Air Lines | 115 | 8% | 83.5% | -4.5 min | 0.9% |
| YX Republic Airline | 103 | 8% | 61.2% | 5.6 min | 13.6% |
| OH PSA Airlines | 86 | 6% | 73.3% | 47.0 min | 8.1% |
| MQ Envoy Air | 56 | 4% | 80.4% | 1.7 min | 1.8% |
| F9 Frontier Airlines | 8 | 1% | 37.5% | 159.0 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| DSM–ORD | Des Moines to Chicago | 294 | 60.9% | 30.3 min | 5.8% |
| DSM–DEN | Des Moines to Denver | 224 | 74.1% | 20.0 min | 0.0% |
| DSM–DFW | Des Moines to Dallas/Fort Worth | 118 | 57.6% | 35.2 min | 5.1% |
| DSM–ATL | Des Moines to Atlanta | 115 | 83.5% | -4.5 min | 0.9% |
| DSM–CLT | Des Moines to Charlotte | 61 | 73.8% | 18.3 min | 1.6% |
| DSM–DCA | Des Moines to Washington | 61 | 59.0% | 33.0 min | 18.0% |
| DSM–PHX | Des Moines to Phoenix | 61 | 83.6% | 1.8 min | 1.6% |
| DSM–PHL | Des Moines to Philadelphia | 59 | 72.9% | 40.9 min | 8.5% |
| DSM–STL | Des Moines to St. Louis | 57 | 94.7% | -9.5 min | 0.0% |
| DSM–LAS | Des Moines to Las Vegas | 53 | 69.8% | 17.1 min | 1.9% |
| DSM–IAH | Des Moines to Houston | 31 | 87.1% | -1.6 min | 3.2% |
| DSM–LGA | Des Moines to New York | 27 | 81.5% | -7.0 min | 14.8% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left DSM on time in July 2025?
75.3% of 1,367 scheduled domestic departures left less than 15 minutes late, and 72.1% reached their destination on time. The national figures that month were 69.7% and 69.0%.
How does that compare with a year earlier?
In July 2024, 71.9% of 1,351 departures left on time and 3.8% were cancelled, against 75.3% and 3.5% in July 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2025; 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.