Carrier route record

MQDFW→SDF

Envoy Air · Dallas-Fort Worth to Louisville

Flights: 309
Period: July 2025 to June 2026
Share of route: 15%
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 SDF earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.6%. When something does go wrong the average delay runs roughly 55 minutes. That rests on 309 flights. The strongest carrier on the route with a full sample, PSA Airlines, flew 463 at 81.5% on time.

Set against the rest of the country, Envoy's DFW to SDF record is 7 points better than the US average of 77.6%. That gap is worth roughly 71 fewer late arrivals for every thousand flights.

On time

84.7%

Arrivals under 15 minutes late, of 301 completed flights

Avg delay

54 min

Across delayed arrivals only, not all flights

Cancelled

2.59%

National rate is 1.81%

Whole route

71.2%

Every carrier on DFW to SDF, 2,014 flights

These figures cover 309 flights between July 2025 and June 2026. The median arrival is 9 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 SDF

Envoy flew 309 of the 2,014 flights on DFW to SDF, about 15% of it. Its 84.7% on time is 14 points better than the route as a whole, which runs 71.2%. Ranked by on-time rate it is number two of five carriers on the route, where the range runs from SkyWest at 85.2% to American at 62.9%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. PSA Airlines arrives on time 81.5% of the time; American Airlines manages 62.9%. Sample sizes sit next to every figure, because a two-point gap across 1,174 flights means less than a ten-point one.

On-time performance by carrier on DFW to SDF
Airline	Flights	On time	Avg delay	Cancelled	Grade
SkyWest Airlinesthin sample	56	85.2%	45 min	3.57%	A−
Envoy Air (this page)thin sample	309	84.7%	54 min	2.59%	B
Spirit Airlinesthin sample	12	83.3%	77 min	0.00%	B+
PSA Airlines	463	81.5%	93 min	5.40%	B−
American Airlines	1,174	62.9%	83 min	3.07%	D−

PSA Airlines cancels 5.4% 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 matters more here than the choice of carrier. The gap between the best and worst window is 13 points, against 19 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am43 flights86.0%
8am–11am72 flights88.7%
11am–2pm120 flights87.2%
2pm–5pm45 flights76.2%
5pm–8pm28 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 88.7% of the time, against 76.2% for the afternoon window. That is 13 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 120 flights scheduled in it.

Across the year

Envoy on DFW to SDF through the year

Jul–Sep 2025148 flights85.5%
Oct–Dec 202531 flights93.3%
Jan–Mar 20269 flights—
Apr–Jun 2026121 flights82.1%

Scale runs 75% 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 84.7% on time across 309 flights.

Envoy on DFW to SDF did not run the same all year. Its best quarter was Oct–Dec 2025 at 93.3% on time and its weakest Apr–Jun 2026 at 82.1%, a swing of 11 points on roughly 103 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Across the week, Tuesday is the strongest day at 88.9% on time and Sunday the weakest at 80.0%. 9 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 46% of the 2,471 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
46%
National Airspace System
20%
Carrier
18%
Extreme weather
16%

Extreme weather accounts for 16% 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 2.6 times the usual weather exposure. The split is drawn from 2,471 reported delay minutes.

46% 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 2,471 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 2.59%, 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 4.0% 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 733 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 78.0% on time across 308 flights, 7 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 7 points of difference.

One caution: this is a thin sample. 309 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 SDF

Put together: treat all of this as provisional. 309 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 84.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 301 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