PlainFlights

Route · IAH → COS · 2020–2025 BTS data

Houston to Colorado Springs

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAH to COS (Houston to Colorado Springs) ranks #3350 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

81.9%
On-time
+2.9 pts
vs US avg
79 min
Delay when late
2,891
Flights
#3350 of 4927
Corpus placement

Cancelled

1.5%

Best Month

Oct 2024 85%

Worst Month

Jul 2024 65%

Distance

809 mi

Carriers

7

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Nov 2025 30 8 0 0 OO
Oct 2025 36 9 0 0 OO
Sep 2025 30 5 0 0 OO
Aug 2025 31 6 0 0 OO
Jul 2025 31 11 2 0 OO
Jan 2025 31 9 1 0 OO
Dec 2024 32 7 0 0 OO
Nov 2024 51 9 0 0 OO
Oct 2024 53 8 0 0 OO
Sep 2024 33 8 0 0 OO
Aug 2024 44 7 0 1 OO
Jul 2024 54 19 5 0 OO
Jun 2024 49 18 0 0 OO
May 2024 39 13 2 1 OO
Jan 2024 31 8 1 0 OO
Dec 2023 34 6 0 2 OO
Nov 2023 36 4 0 0 OO,UA
Oct 2023 38 6 0 0 OO
Sep 2023 53 8 0 0 OO
Aug 2023 31 10 0 1 OO
Jul 2023 31 11 0 0 OO
Apr 2023 30 13 1 0 OO
Mar 2023 31 8 0 0 OO
Jan 2023 34 10 1 0 OO

IAH–COS seasonal on-time pattern

Best: September (87.1%) · weakest: July (69.7%)

65%70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 83%

Strongest calendar month

September

87.1% on-time · ~49 flights/mo

Busiest calendar month

June

~66 flights/mo avg

Weakest calendar month

July

69.7% on-time · ~54 flights/mo

Cancellation Rate

1.5%

13 of 893 flights

Diversion Rate

0.6%

5 of 893 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

IAH - Houston

Full on-time, delay-cause, and seasonal performance for Houston, TX.

IAH on-time profile

COS - Colorado Springs

Full on-time, delay-cause, and seasonal performance for Colorado Springs, CO.

COS on-time profile

Compare the two airports

See IAH and COS side by side on delays, cancellations, and reliability.

Compare IAH vs COS

Origin-hub reliability standing

Mid-pack among IAH departures

From IAH, this corridor sits with 79 other 75–85% on-time routes out of 102 tracked departures, not the hub's reliability leaders (17 at ≥85%) and not the softest ( 6 below 75%). Destination: Colorado Springs · fleet on-time rank #2395 of 4927.

What the Data Says About IAH to COS

2,891 tracked flights put the IAH to COS pairing (Houston to Colorado Springs) at a 81.9% on-time rate, squarely in line with the wider network. Delays that do occur run 78.6 minutes on average. Across the 809-mile route and its 7 carriers, the trailing 24 months show 1.5% cancelled and 0.6% diverted (893 flights sampled).

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 85% on-time, while Jul 2024 came in at just 65% - a 20-point swing worth factoring into travel timing.

On the multi-year calendar, IAH–COS peaks in September at 87.1% on-time while June carries the heaviest traffic (~66 flights per month) ; the softest month is July at 69.7%, a 17.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does IAH to COS rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, IAH to COS ranks #3350 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from IAH to COS? ▼
Flights from Houston to Colorado Springs have a 81.9% on-time rate based on 2,891 flights. The average delay is 78.6 minutes. The best recent month was Oct 2024 with 85% on-time.
What is the cancellation rate for IAH to COS? ▼
Over the last 24 months, 1.5% of flights on this route were cancelled (13 of 893 flights) and 0.6% were diverted.
How far is the flight from IAH to COS? ▼
The flight distance from Houston (IAH) to Colorado Springs (COS) is approximately 809 miles. This route is served by 7 carriers.
When is the best time to fly from IAH to COS? ▼
The best recent month for on-time performance was Oct 2024 (85% on-time). The worst was Jul 2024 (65% on-time). Consider booking during months with historically better performance.

Airports on this route

IAH Airport

Houston
COS Airport

Colorado Springs
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using IAH–COS data

IAH–COS is mid-pack at 81.9% on-time; month and carrier mix move more than the corridor headline.

  • Compare IAH and COS airport profiles: delay causes and top routes differ even on the same corridor. IAH airport
  • If your dates flex, September (87.1% on-time) beats July (69.7%) on this corridor. Seasonal chart
  • 4 other routes post a similar 81.9% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

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

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.