Carrier route record

MQCOS→DFW

Envoy Air · Colorado Springs to Dallas-Fort Worth

Flights: 254
Period: July 2025 to June 2026
Share of route: 13%
Carriers: 3

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Envoy Air.

Envoy on COS to DFW earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 254 flights. The strongest carrier on the route with a full sample, SkyWest Airlines, flew 609 at 80.3% on time.

Set against the rest of the country, Envoy's COS to DFW record is 9 points better than the US average of 77.6%. That gap is worth roughly 91 fewer late arrivals for every thousand flights.

On time

86.7%

Arrivals under 15 minutes late, of 249 completed flights

Avg delay

69 min

Across delayed arrivals only, not all flights

Cancelled

1.57%

National rate is 1.81%

Whole route

77.8%

Every carrier on COS to DFW, 1,934 flights

These figures cover 254 flights between July 2025 and June 2026. The median arrival is 10 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Carrier by carrier

Envoy against every carrier on COS to DFW

Envoy flew 254 of the 1,934 flights on COS to DFW, about 13% of it. Its 86.7% on time is 9 points better than the route as a whole, which runs 77.8%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Envoy at 86.7% to American at 74.1%.

The choice of carrier is not cosmetic here. SkyWest Airlines arrives on time 80.3% of the time; American Airlines manages 74.1%. Sample sizes sit next to every figure, because a two-point gap across 1,071 flights means less than a ten-point one.

On-time performance by carrier on COS to DFW
Airline	Flights	On time	Avg delay	Cancelled	Grade
Envoy Air (this page)thin sample	254	86.7%	69 min	1.57%	A
SkyWest Airlines	609	80.3%	153 min	2.79%	B
American Airlines	1,071	74.1%	120 min	3.36%	C−

American Airlines cancels 3.4% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Departure window

When Envoy runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 254 flights.

5am–8am—
8am–11am117 flights88.7%
11am–2pm67 flights83.3%
2pm–5pm60 flights87.9%
5pm–8pm10 flights—
8pm–5am—

Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.

The weak window here is the middle of the day, not the evening: 11am–2pm runs 83.3% on time against 88.7% for 8am–11am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 8am–11am window is the busiest, with 117 flights scheduled in it.

Across the year

Envoy on COS to DFW through the year

Jul–Sep 202557 flights85.5%
Oct–Dec 202573 flights84.9%
Jan–Mar 202666 flights90.6%
Apr–Jun 202658 flights86.0%

Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 86.7% on time across 254 flights.

Quarter by quarter Envoy on COS to DFW held fairly steady: 85.5% in Jul–Sep 2025, 84.9% in Oct–Dec 2025, 90.6% in Jan–Mar 2026 and 86.0% in Apr–Jun 2026. A spread of 6 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Across the week, Thursday is the strongest day at 97.0% on time and Saturday the weakest at 78.2%. 19 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Envoy runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 53% of the 2,263 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
53%
National Airspace System
20%
Extreme weather
18%
Carrier
9%

Extreme weather accounts for 18% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.8 times the usual weather exposure. The split is drawn from 2,263 reported delay minutes.

53% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 2,263 reported delay minutes here, that single category outweighs weather by 3 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit.

Cancellations sit at 1.57% against a national 1.81%, which is ordinary. Diversions add another 0.39%.

Connections and stage length

What a delay here costs

5.2% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

The 592 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The return leg runs 87.6% on time across 254 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 254 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking Envoy on COS to DFW

Put together: treat all of this as provisional. 254 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 86.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 249 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures