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Airport · COS · Colorado Springs, Colorado

Colorado Springs, CO

Colorado Springs, CO posts bottom-quartile on-time performance among the 382 tracked U.S. airports, as a high-volume U.S. airport. According to the U.S. DOT Bureau of Transportation Statistics, drawn from 134,711 flights (2020–2025); its biggest delay driver is carrier.

Data updated 2026-06-13

80.4%
On-time
Top 82%
on-time, US airports
75 min
Delay when late
0.96%
Cancelled

Key Performance Metrics

Total Flights

134,711

Best Month

Nov 93.5%

Worst Month

Jul 87.8%

Delayed

26,469

Cancelled

1,292

COS on-time rate vs. the national average

Ahead of the U.S. average across all 382 tracked airports.

0%100%U.S. average79%80.4%

Where COS sits among all 382 tracked airports

COS's 80.4% on-time rate falls in the 80-85% band, the 192-airport band it shares.

National on-time-rate distribution

airports

What this shows COS is marked in the 80-85% band.

Delay Cause Breakdown

Top delay cause: Carrier. Total delay minutes: 946,784.

Late Aircraft 32.9% (311,124 min)
Carrier 42.0% (397,652 min)
NAS (National Aviation System) 18.0% (170,718 min)
Weather 7.1% (66,960 min)
Security 0.0% (330 min)

COS - seasonal on-time pattern

Best: November (93.5%) · worst: July (87.8%)

86%88%90%92%94% JanFebMarAprMayJunJulAugSepOctNovDec 90.7%

Seasonal Performance Patterns

Monthly averages across all years of data. Best month: November (93.5% on-time). Most delays: July (87.8% on-time).

Month Avg Flights Avg Delayed Avg Cancelled On-Time %
December 1,901 383 21 90.7%
November 1,878 280 15 93.5%
October 2,032 353 9 92.3%
September 1,964 316 5 92.8%
August 2,067 466 15 90.2%
July 2,063 576 18 87.8%
June 1,868 481 15 89.1%
May 1,794 363 15 91.1%
April 1,775 295 26 92.7%
March 1,847 307 38 92.7%
February 1,562 278 19 92.3%
January 1,701 313 22 91.7%

Year-Over-Year Performance

Annual flight volume and on-time trends at COS.

COS - on-time rate by year

2020–2025, year-over-year trend.

88%90%92%94%96% 202020212022202320242025 94.8% 89.8% ▼ -5.3%
Year Flights Delayed Cancelled On-Time %
2025 26,720 2,717 186 89.8%
2024 25,309 2,153 140 91.5%
2023 23,169 2,053 161 91.1%
2022 23,736 2,127 296 91%
2021 23,226 1,940 268 91.6%
2020 12,551 654 241 94.8%

Cancellation & Diversion Analysis

Flight disruption statistics for Colorado Springs, CO.

Cancellation Rate

0.96%

1,292 of 134,711 flights

Diversion Rate

0.15%

196 of 134,711 flights

Delay Rate

19.6%

26,469 of 134,711 flights

Monthly Performance

Recent 24 months of flight data.

Period Flights Dep Delayed Arr Delayed Cancelled Diverted
Dec 2025 2,227 256 294 8 0
Nov 2025 2,224 181 213 46 0
Oct 2025 2,454 200 249 3 3
Sep 2025 2,312 175 207 8 4
Aug 2025 2,473 285 364 11 9
Jul 2025 2,540 343 451 24 8
Jun 2025 2,346 306 422 15 5
May 2025 2,206 248 286 16 2
Apr 2025 2,058 218 241 14 3
Mar 2025 2,074 142 185 19 2
Feb 2025 1,858 164 217 9 1
Jan 2025 1,948 199 257 13 0
Dec 2024 2,100 170 206 5 3
Nov 2024 2,091 131 183 33 0
Oct 2024 2,282 143 155 0 0
Sep 2024 2,154 162 181 0 0
Aug 2024 2,258 229 293 6 1
Jul 2024 2,440 271 389 14 3
Jun 2024 2,340 221 317 13 5
May 2024 2,136 243 319 16 5
Apr 2024 1,944 147 204 6 2
Mar 2024 1,944 142 196 24 2
Feb 2024 1,709 124 156 10 3
Jan 2024 1,911 170 227 13 3

What the Data Says About COS

Colorado Springs, CO in Colorado Springs, Colorado handled 134,711 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 80.4% on-time departure rate. Of those flights, 26,469 experienced delays, 1,292 were cancelled, and 196 were diverted. The cancellation rate works out to 0.96%, the diversion rate to 0.15%, and the average delay when departures run late is 75.0 minutes. These figures are the baseline for comparing COS against other airports in the same state and nationally.

Breaking down what drives delays at COS, Carrier leads the pack. Carrier accounts for 42.0% of total delay minutes, followed by Late Aircraft at 32.9% and NAS (National Aviation System) at 18.0%. Weather contributes 7.1% of delay minutes at this airport, while security holds the smallest share at 0.0%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, November runs the cleanest at COS with a 93.5% on-time rate, while July is the roughest at 87.8% - a 6-point swing between best and worst month. Volume peaks in August, when average flights hit 2,067. The busiest route connecting COS is to DEN (Denver), with 22,924 flights at a 80.3% on-time rate. Combine these numbers - 80.4% on-time, 75.0-minute average delay, 0.96% cancellation rate, and you have a concrete picture of departure reliability at Colorado Springs, CO.

Frequently Asked Questions

What is the on-time performance rate at Colorado Springs, CO (COS)?
Colorado Springs, CO has an overall on-time departure rate of 80.4%. Out of 134,711 total flights tracked, 26,469 experienced delays and 1,292 were cancelled.
What is the most common cause of delays at COS?
The top delay cause at Colorado Springs, CO is Carrier. Carrier accounts for 42.0% of all delay minutes.
What is the average delay time at COS?
The average delay at Colorado Springs, CO is 75.0 minutes. This includes delays from carrier issues, weather, National Aviation System constraints, security, and late-arriving aircraft.
What is the best month to fly from COS?
Based on historical data, November has the best on-time performance at COS with 93.5% of flights departing on time.
What is the worst month for delays at COS?
July tends to have the most delays at COS, with an on-time rate of only 87.8%.
How many routes operate from COS?
Colorado Springs, CO serves at least 20 routes. The busiest route is COS to DEN (Colorado Springs - Denver) with 22,924 flights.
What is the cancellation rate at COS?
Colorado Springs, CO has a cancellation rate of 0.96%, based on 1,292 cancelled flights out of 134,711 total flights tracked.

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Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025). Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.

Using COS's data

An airport-level on-time rate is a starting point, not a guarantee for your specific flight.

On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights Editorial

Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.