Route · COS → ORD · 2020–2025 BTS data
Colorado Springs to Chicago
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), COS to ORD (Colorado Springs to Chicago) ranks #2821 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 85.8%
- On-time
- +6.8 pts
- vs US avg
- 106 min
- Delay when late
- 4,213
- Flights
- #2821 of 4927
- Corpus placement
Cancelled
0.7%
Best Month
Sep 2024 100%
Worst Month
Jul 2025 68%
Distance
911 mi
Carriers
11
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 90 | 25 | 0 | 0 | OO |
| Nov 2025 | 88 | 18 | 3 | 0 | OO |
| Oct 2025 | 93 | 18 | 0 | 0 | OO,UA |
| Sep 2025 | 90 | 18 | 1 | 1 | UA,OO |
| Aug 2025 | 93 | 19 | 1 | 3 | OO,UA |
| Jul 2025 | 93 | 30 | 1 | 2 | OO,UA |
| Jun 2025 | 86 | 18 | 0 | 0 | OO,UA |
| May 2025 | 62 | 6 | 0 | 0 | OO,UA |
| Apr 2025 | 60 | 6 | 1 | 0 | OO |
| Mar 2025 | 33 | 2 | 0 | 0 | OO |
| Jan 2025 | 37 | 4 | 0 | 0 | OO |
| Dec 2024 | 59 | 8 | 0 | 0 | OO |
| Nov 2024 | 59 | 8 | 0 | 0 | OO |
| Oct 2024 | 62 | 7 | 0 | 0 | UA,OO |
| Sep 2024 | 60 | 0 | 0 | 0 | OO,UA |
| Aug 2024 | 62 | 5 | 1 | 0 | OO,UA |
| Jul 2024 | 62 | 5 | 0 | 0 | OO,UA |
| Jun 2024 | 60 | 6 | 0 | 1 | OO |
| May 2024 | 40 | 7 | 1 | 1 | OO,UA |
| Apr 2024 | 30 | 4 | 0 | 0 | OO |
| Mar 2024 | 31 | 1 | 1 | 0 | OO,UA |
| Jan 2024 | 40 | 6 | 1 | 0 | OO,UA |
| Dec 2023 | 61 | 11 | 0 | 0 | OO |
| Nov 2023 | 59 | 4 | 0 | 0 | OO,UA |
COS–ORD seasonal on-time pattern
Best: April (90.2%) · weakest: July (80.6%)
Strongest calendar month
April
90.2% on-time · ~53 flights/mo
Busiest calendar month
July
~74 flights/mo avg
Weakest calendar month
July
80.6% on-time · ~74 flights/mo
Cancellation Rate
0.7%
11 of 1,510 flights
Diversion Rate
0.5%
8 of 1,510 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
COS - Colorado Springs
Full on-time, delay-cause, and seasonal performance for Colorado Springs, CO.
COS on-time profileORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
ORD on-time profileCompare the two airports
See COS and ORD side by side on delays, cancellations, and reliability.
Compare COS vs ORDOrigin-hub reliability standing
Among COS's stronger departures
COS → ORD posts a 85.8% on-time rate, landing in the ≥85% band with 4 of 11 BTS-tracked routes leaving Colorado Springs. The same hub also shows 7 mid-band and 0 challenged departures · fleet-wide on-time rank #952 of 4927 (highest on-time = #1).
Similar routes
Other BTS-tracked routes with comparable performance or trip length to COS–ORD.
Routes with a similar on-time rate
What the Data Says About COS to ORD
Colorado Springs to Chicago (COS to ORD) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 85.8% on-time rate across 4,213 flights, with delays that do happen averaging 105.5 minutes. The corridor runs roughly 911 miles and is served by 11 carriers. Over the most recent 24 months, 11 of 1,510 flights were cancelled (0.7%) and 8 diverted (0.5%).
The monthly split is wide on this route: Sep 2024 posted the strongest performance at 100% on-time, while Jul 2025 came in at just 68% - a 32-point swing worth factoring into travel timing.
On the multi-year calendar, COS–ORD peaks in April at 90.2% on-time while July carries the heaviest traffic (~74 flights per month) ; the softest month is July at 80.6%, a 9.6-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does COS to ORD rank among US routes by traffic? ▼
How often are flights delayed from COS to ORD? ▼
What is the cancellation rate for COS to ORD? ▼
How far is the flight from COS to ORD? ▼
When is the best time to fly from COS to ORD? ▼
Airports on this route
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 COS–ORD data
COS–ORD runs 6.8 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare COS and ORD airport profiles: delay causes and top routes differ even on the same corridor. COS airport
- If your dates flex, April (90.2% on-time) beats July (80.6%) on this corridor. Seasonal chart
- 4 other routes post a similar 85.8% 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.
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.