Carrier route record

MQSTL→DFW

Envoy Air · St. Louis to Dallas-Fort Worth

Flights: 299
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 STL to DFW lands a B−, 5 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 299 flights, with a median arrival 3 minutes early.

Set against the rest of the country, Envoy's STL to DFW record is 5 points better than the US average of 77.6%. That gap is worth roughly 52 fewer late arrivals for every thousand flights.

On time

82.8%

Arrivals under 15 minutes late, of 290 completed flights

Avg delay

72 min

Across delayed arrivals only, not all flights

Cancelled

3.01%

National rate is 1.81%

Whole route

74.5%

Every carrier on STL to DFW, 2,380 flights

These figures cover 299 flights between July 2025 and June 2026. The median arrival is 3 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 STL to DFW

Envoy flew 299 of the 2,380 flights on STL to DFW, about 13% of it. Its 82.8% on time is 8 points better than the route as a whole, which runs 74.5%. Ranked by on-time rate it is first of five carriers on the route, where the range runs from Envoy at 82.8% to SkyWest at 54.7%. 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 STL to DFW
Airline	Flights	On time	Avg delay	Cancelled	Grade
Envoy Air (this page)thin sample	299	82.8%	72 min	3.01%	B−
American Airlines	1,852	74.8%	114 min	3.46%	C−
Frontier Airlinesthin sample	80	70.1%	80 min	2.50%	C
PSA Airlinesthin sample	51	58.3%	150 min	5.88%	D−
SkyWest Airlinesthin sample	98	54.7%	127 min	3.06%	F−

Departure window

When Envoy runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 11 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am12 flights—
8am–11am45 flights88.9%
11am–2pm128 flights84.0%
2pm–5pm107 flights78.2%
5pm–8pm6 flights—
8pm–5am1 flights—

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

Book the morning departure. Flights leaving between 8am–11am arrive on time 88.9% of the time, against 78.2% for the afternoon window. That is 11 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 11am–2pm window is the busiest, with 128 flights scheduled in it.

Across the year

Envoy on STL to DFW through the year

Jul–Sep 2025122 flights85.1%
Oct–Dec 2025106 flights78.4%
Jan–Mar 202630 flights—
Apr–Jun 202641 flights84.2%

Scale runs 70% to 90%. 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 82.8% on time across 299 flights.

Quarter by quarter Envoy on STL to DFW held fairly steady: 85.1% in Jul–Sep 2025, 78.4% in Oct–Dec 2025 and 84.2% in Apr–Jun 2026. A spread of 7 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 90.7% on time and Monday the weakest at 66.7%. 24 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 43% of the 3,591 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
43%
National Airspace System
27%
Extreme weather
15%
Carrier
15%

Extreme weather accounts for 15% 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 2.4 times the usual weather exposure. The split is drawn from 3,591 reported delay minutes.

43% 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 3,591 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 run at 3.01%, against 1.81% nationally. That is roughly one flight in 30 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

6.6% 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 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 88.4% on time across 301 flights, 6 points above 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. 299 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 STL to DFW

Put together: the delay figures matter less here than the 3.01% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 290 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