Des Moines International in January 2025

80.0%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 January 2025, reporting carriers scheduled 1,051 domestic departures from Des Moines International (DSM). 80.0% left less than 15 minutes late and 80.4% reached their destination on time; 2.3% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so DSM departures were 0.7 points above the national departure figure.

A year earlier, in January 2024, the airport had 1,252 departures with 65.8% leaving on time: a change of +14.2 points, with flights down 16%.

Flights arriving at DSM that month were on time 78.8% of the time (1,055 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 34%, air carrier 34% and national aviation system 23%.

On time 80.4%
Arrived 15+ minutes late 17.1%
Cancelled 2.3%
Diverted 0.2%

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

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

Measure	Jan 2025	Jan 2024	DSM, 12 months to Jul 2026	All reported flights, Jan 2025
Departed on time	80.0%	65.8%	78.5%	79.3%
Arrived on time	80.4%	61.7%	77.3%	78.6%
Cancelled	2.3%	8.1%	2.5%	3.0%
Average departure delay (late minutes only)	17.3 min	35.3 min	20.8 min	14.0 min
Scheduled departures a day	35	42	43	17,992
Scheduled departures	1,051	1,252	15,584	539,747

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	164	16%	80.5%	-0.3 min	4.9%
WN Southwest Airlines	152	14%	83.6%	-6.5 min	1.3%
UA United Airlines	137	13%	85.4%	2.3 min	1.5%
G4 Allegiant Air	136	13%	72.1%	15.2 min	0.0%
MQ Envoy Air	131	12%	84.0%	-3.2 min	0.0%
DL Delta Air Lines	91	9%	81.3%	7.7 min	4.4%
YX Republic Airline	81	8%	84.0%	-2.9 min	0.0%
OH PSA Airlines	80	8%	66.3%	10.6 min	10.0%
OO SkyWest Airlines	68	6%	85.3%	19.1 min	0.0%
F9 Frontier Airlines	11	1%	72.7%	8.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DSM–DEN	Des Moines to Denver	157	83.4%	4.9 min	0.0%
DSM–ORD	Des Moines to Chicago	157	84.1%	6.1 min	0.0%
DSM–DFW	Des Moines to Dallas/Fort Worth	104	71.2%	1.8 min	8.7%
DSM–PHX	Des Moines to Phoenix	101	91.1%	-8.0 min	0.0%
DSM–ATL	Des Moines to Atlanta	91	81.3%	7.7 min	4.4%
DSM–CLT	Des Moines to Charlotte	63	84.1%	4.7 min	3.2%
DSM–STL	Des Moines to St. Louis	59	84.7%	-9.5 min	3.4%
DSM–DCA	Des Moines to Washington	56	66.1%	11.5 min	8.9%
DSM–LAS	Des Moines to Las Vegas	50	78.0%	-2.8 min	0.0%
DSM–LGA	Des Moines to New York	31	80.6%	-1.5 min	0.0%
DSM–MIA	Des Moines to Miami	31	80.6%	-5.6 min	0.0%
DSM–IAH	Des Moines to Houston	25	84.0%	-6.2 min	8.0%

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), January 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2025	Minutes
Air carrier	33.7%	36.2%	5,442
Late-arriving aircraft	34.1%	34.7%	5,506
National Aviation System	22.8%	19.9%	3,688
Extreme weather	9.2%	9.1%	1,484
Security	0.2%	0.2%	38

16,158 delay minutes on 180 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 January 2025?

80.0% of 1,051 scheduled domestic departures left less than 15 minutes late, and 80.4% reached their destination on time. The national figures that month were 79.3% and 78.6%.

How does that compare with a year earlier?

In January 2024, 65.8% of 1,252 departures left on time and 8.1% were cancelled, against 80.0% and 2.3% in January 2025.

Provenance

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