City of Colorado Springs Municipal in September 2023

86.9%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 2023, reporting carriers scheduled 1,043 domestic departures from City of Colorado Springs Municipal (COS). 86.9% left less than 15 minutes late and 84.9% reached their destination on time; 0.7% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.1% arrived on time, so COS departures were 6.4 points above the national departure figure.

Flights arriving at COS that month were on time 80.1% of the time (1,043 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 56%, late-arriving aircraft 24% and national aviation system 17%.

On time 84.9%
Arrived 15+ minutes late 13.9%
Cancelled 0.7%
Diverted 0.5%

Every scheduled departure from COS in September 2023, judged by arrival at the destination.

September 2023 against a year earlier, the airport's year and the nation

Measure	Sep 2023	Year earlier	COS, 12 months to Jul 2026	All reported flights, Sep 2023
Departed on time	86.9%	—	79.1%	80.5%
Arrived on time	84.9%	—	79.8%	80.1%
Cancelled	0.7%	—	1.1%	1.2%
Average departure delay (late minutes only)	10.7 min	—	16.8 min	14.1 min
Scheduled departures a day	35	—	36	18,978
Scheduled departures	1,043	—	13,185	569,338

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	449	43%	84.2%	1.5 min	0.7%
OO SkyWest Airlines	357	34%	87.1%	-0.4 min	0.8%
AA American Airlines	87	8%	77.0%	32.4 min	1.1%
UA United Airlines	83	8%	88.0%	2.1 min	0.0%
DL Delta Air Lines	38	4%	86.8%	10.2 min	0.0%
MQ Envoy Air	29	3%	82.8%	3.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
COS–DEN	Colorado Springs to Denver	388	84.3%	2.4 min	0.8%
COS–DFW	Colorado Springs to Dallas/Fort Worth	146	81.5%	16.8 min	0.7%
COS–LAS	Colorado Springs to Las Vegas	104	79.8%	5.9 min	2.9%
COS–PHX	Colorado Springs to Phoenix	82	87.8%	0.4 min	0.0%
COS–DAL	Colorado Springs to Dallas	81	90.1%	-1.1 min	0.0%
COS–ORD	Colorado Springs to Chicago	61	88.5%	1.6 min	0.0%
COS–IAH	Colorado Springs to Houston	53	86.8%	-2.3 min	0.0%
COS–ATL	Colorado Springs to Atlanta	30	90.0%	6.9 min	0.0%
COS–LGB	Colorado Springs to Long Beach	30	80.0%	6.1 min	0.0%
COS–MDW	Colorado Springs to Chicago	30	83.3%	-2.8 min	0.0%
COS–SLC	Colorado Springs to Salt Lake City	30	100.0%	-12.4 min	0.0%
COS–MSP	Colorado Springs to Minneapolis	8	75.0%	22.6 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), September 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2023	Minutes
Air carrier	55.7%	36.4%	5,957
Late-arriving aircraft	23.6%	38.3%	2,528
National Aviation System	17.1%	19.9%	1,830
Extreme weather	3.5%	5.1%	375
Security	0.0%	0.2%	0

10,690 delay minutes on 145 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 COS on time in September 2023?

86.9% of 1,043 scheduled domestic departures left less than 15 minutes late, and 84.9% reached their destination on time. The national figures that month were 80.5% and 80.1%.

How does that compare with a year earlier?

September 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2023; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for COS · methodology · corrections.