Des Moines International in October 2025

85.8%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 October 2025, reporting carriers scheduled 1,391 domestic departures from Des Moines International (DSM). 85.8% left less than 15 minutes late and 82.2% reached their destination on time; 0.4% were cancelled.

Nationally that month, 80.0% of flights departed on time and 79.1% arrived on time, so DSM departures were 5.8 points above the national departure figure.

A year earlier, in October 2024, the airport had 1,332 departures with 88.7% leaving on time: a change of −2.9 points, with flights up 4%.

Flights arriving at DSM that month were on time 81.5% of the time (1,391 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 41%, air carrier 34% and national aviation system 21%.

On time 82.2%
Arrived 15+ minutes late 17.4%
Cancelled 0.4%
Diverted 0.0%

Every scheduled departure from DSM in October 2025, judged by arrival at the destination.

October 2025 against a year earlier, the airport's year and the nation

Measure	Oct 2025	Oct 2024	DSM, 12 months to Jul 2026	All reported flights, Oct 2025
Departed on time	85.8%	88.7%	78.5%	80.0%
Arrived on time	82.2%	87.9%	77.3%	79.1%
Cancelled	0.4%	0.4%	2.5%	0.5%
Average departure delay (late minutes only)	10.9 min	11.2 min	20.8 min	13.9 min
Scheduled departures a day	46	44	43	20,195
Scheduled departures	1,391	1,332	15,584	605,844

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	253	18%	79.4%	6.3 min	0.4%
UA United Airlines	210	15%	71.0%	9.5 min	0.0%
G4 Allegiant Air	174	13%	89.7%	-1.2 min	0.0%
AA American Airlines	161	12%	72.0%	14.0 min	1.2%
WN Southwest Airlines	150	11%	87.3%	-2.0 min	0.0%
OH PSA Airlines	145	10%	88.3%	-1.9 min	0.0%
DL Delta Air Lines	119	9%	95.8%	-16.1 min	0.0%
YX Republic Airline	116	8%	79.3%	4.8 min	0.0%
MQ Envoy Air	42	3%	88.1%	-6.1 min	4.8%
F9 Frontier Airlines	21	2%	95.2%	-6.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DSM–ORD	Des Moines to Chicago	296	69.6%	12.0 min	0.7%
DSM–DEN	Des Moines to Denver	198	89.4%	-2.8 min	0.0%
DSM–DFW	Des Moines to Dallas/Fort Worth	121	71.1%	13.9 min	2.5%
DSM–ATL	Des Moines to Atlanta	119	95.8%	-16.1 min	0.0%
DSM–PHX	Des Moines to Phoenix	105	76.2%	9.5 min	0.0%
DSM–CLT	Des Moines to Charlotte	84	89.3%	0.6 min	0.0%
DSM–DCA	Des Moines to Washington	62	77.4%	7.1 min	0.0%
DSM–PHL	Des Moines to Philadelphia	62	82.3%	-2.5 min	0.0%
DSM–STL	Des Moines to St. Louis	57	94.7%	-10.3 min	0.0%
DSM–LAS	Des Moines to Las Vegas	53	92.5%	1.0 min	0.0%
DSM–IAH	Des Moines to Houston	31	93.5%	-11.0 min	0.0%
DSM–LAX	Des Moines to Los Angeles	27	81.5%	6.7 min	0.0%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), October 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2025	Minutes
Air carrier	34.4%	34.0%	5,260
Late-arriving aircraft	40.6%	39.7%	6,211
National Aviation System	21.3%	22.9%	3,260
Extreme weather	3.7%	3.3%	566
Security	0.0%	0.1%	0

15,297 delay minutes on 242 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left DSM on time in October 2025?

85.8% of 1,391 scheduled domestic departures left less than 15 minutes late, and 82.2% reached their destination on time. The national figures that month were 80.0% and 79.1%.

How does that compare with a year earlier?

In October 2024, 88.7% of 1,332 departures left on time and 0.4% were cancelled, against 85.8% and 0.4% in October 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for October 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.