Carrier route record

MQDFW→STL

Envoy Air · Dallas-Fort Worth to St. Louis

Flights: 301
Period: July 2025 to June 2026
Share of route: 13%
Carriers: 5

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

Envoy on DFW to STL earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 11 points better than the national rate of 77.6%. When something does go wrong the average delay runs roughly 45 minutes. That rests on 301 flights, with a median arrival 8 minutes early.

Set against the rest of the country, Envoy's DFW to STL record is 11 points better than the US average of 77.6%. That gap is worth roughly 108 fewer late arrivals for every thousand flights.

On time

88.4%

Arrivals under 15 minutes late, of 292 completed flights

Avg delay

47 min

Across delayed arrivals only, not all flights

Cancelled

2.66%

National rate is 1.81%

Whole route

69.4%

Every carrier on DFW to STL, 2,382 flights

These figures cover 301 flights between July 2025 and June 2026. The median arrival is 8 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 DFW to STL

Envoy flew 301 of the 2,382 flights on DFW to STL, about 13% of it. Its 88.4% on time is 19 points better than the route as a whole, which runs 69.4%. Ranked by on-time rate it is number two of five carriers on the route, where the range runs from Frontier at 88.8% to SkyWest at 63.5%. Three of those carriers flew fewer than 365 flights here, so treat their positions as rough.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on DFW to STL
Airline	Flights	On time	Avg delay	Cancelled	Grade
Frontier Airlinesthin sample	80	88.8%	47 min	0.00%	A+
Envoy Air (this page)thin sample	301	88.4%	47 min	2.66%	A
PSA Airlinesthin sample	51	69.6%	64 min	7.84%	C−
American Airlines	1,852	65.7%	86 min	3.29%	C−
SkyWest Airlinesthin sample	98	63.5%	83 min	1.02%	D

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 301 flights.

5am–8am44 flights88.6%
8am–11am128 flights88.9%
11am–2pm108 flights91.2%
2pm–5pm4 flights—
5pm–8pm16 flights—
8pm–5am1 flights—

Scale runs 80% to 95%. Rows with fewer than 30 flights show a dash.

The 11am–2pm window is the strongest at 91.2% on time. The full set of windows spans 3 points.

Across the year

Envoy on DFW to STL through the year

Jul–Sep 2025123 flights87.7%
Oct–Dec 2025106 flights87.3%
Jan–Mar 202631 flights—
Apr–Jun 202641 flights94.9%

Scale runs 80% to 100%. 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 88.4% on time across 301 flights.

Quarter by quarter Envoy on DFW to STL held fairly steady: 87.7% in Jul–Sep 2025, 87.3% in Oct–Dec 2025 and 94.9% in Apr–Jun 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Across the week, Friday is the strongest day at 97.8% on time and Monday the weakest at 76.9%. 21 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 57% of the 1,607 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
57%
Carrier
23%
National Airspace System
19%
Extreme weather
1%

57% 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 1,607 reported delay minutes here, that single category outweighs weather by 57 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. The split is drawn from 1,607 reported delay minutes.

Cancellations run at 2.66%, against 1.81% nationally. That is about one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and stage length

What a delay here costs

Badly late arrivals are rare here: only 2.4% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The 550 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 is a different operation and performs like one: it runs 82.8% on time across 299 flights, 6 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 6 points of difference.

One caution: this is a thin sample. 301 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 DFW to STL

Put together: treat all of this as provisional. 301 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 88.4% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 292 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