City of Colorado Springs Municipal in December 2023

82.1%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 December 2023, reporting carriers scheduled 1,017 domestic departures from City of Colorado Springs Municipal (COS). 82.1% left less than 15 minutes late and 80.4% reached their destination on time; 0.5% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so COS departures were 1.0 points below the national departure figure.

Flights arriving at COS that month were on time 81.4% of the time (1,017 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 36%, late-arriving aircraft 35% and national aviation system 22%.

On time 80.4%
Arrived 15+ minutes late 18.8%
Cancelled 0.5%
Diverted 0.3%

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

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

Measure	Dec 2023	Year earlier	COS, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	82.1%	—	79.1%	83.1%
Arrived on time	80.4%	—	79.8%	83.8%
Cancelled	0.5%	—	1.1%	0.4%
Average departure delay (late minutes only)	13.3 min	—	16.8 min	11.6 min
Scheduled departures a day	34	—	36	19,013
Scheduled departures	1,017	—	13,185	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	462	45%	80.3%	3.2 min	0.4%
OO SkyWest Airlines	382	38%	80.4%	7.1 min	0.8%
AA American Airlines	91	9%	84.6%	2.1 min	0.0%
UA United Airlines	51	5%	76.5%	8.5 min	0.0%
DL Delta Air Lines	31	3%	77.4%	15.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
COS–DEN	Colorado Springs to Denver	361	78.7%	7.3 min	1.1%
COS–DFW	Colorado Springs to Dallas/Fort Worth	152	81.6%	3.3 min	0.0%
COS–PHX	Colorado Springs to Phoenix	90	84.4%	1.1 min	0.0%
COS–DAL	Colorado Springs to Dallas	88	84.1%	3.7 min	0.0%
COS–LAS	Colorado Springs to Las Vegas	88	84.1%	-0.4 min	0.0%
COS–ORD	Colorado Springs to Chicago	61	82.0%	14.2 min	0.0%
COS–IAH	Colorado Springs to Houston	34	79.4%	5.2 min	0.0%
COS–ATL	Colorado Springs to Atlanta	31	77.4%	15.9 min	0.0%
COS–MDW	Colorado Springs to Chicago	31	61.3%	16.1 min	0.0%
COS–SLC	Colorado Springs to Salt Lake City	31	83.9%	-8.8 min	0.0%
COS–LGB	Colorado Springs to Long Beach	26	84.6%	-3.6 min	3.8%
COS–HOU	Colorado Springs to Houston	8	87.5%	-2.7 min	0.0%

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), December 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	36.0%	37.1%	4,539
Late-arriving aircraft	35.1%	38.8%	4,426
National Aviation System	21.5%	17.6%	2,711
Extreme weather	7.4%	6.2%	929
Security	0.0%	0.3%	0

12,605 delay minutes on 191 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 December 2023?

82.1% of 1,017 scheduled domestic departures left less than 15 minutes late, and 80.4% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 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 December 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.