Carrier route record

MQTYS→ORD

Envoy Air · Knoxville to Chicago

Flights: 175
Period: July 2025 to June 2026
Share of route: 8%
Carriers: 5

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

Envoy on TYS to ORD sits in the middle of the pack with a B. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 175 flights. The strongest carrier on the route with a full sample, SkyWest Airlines, flew 815 at 66.7% on time.

The US average over the same twelve months is 77.6%, so there is little to separate Envoy on TYS to ORD from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

On time

75.9%

Arrivals under 15 minutes late, of 170 completed flights

Avg delay

57 min

Across delayed arrivals only, not all flights

Cancelled

1.71%

National rate is 1.81%

Whole route

68.2%

Every carrier on TYS to ORD, 2,220 flights

These figures cover 175 flights between July 2025 and June 2026. Beyond the headline rate, 8.2% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Carrier by carrier

Envoy against every carrier on TYS to ORD

Envoy flew 175 of the 2,220 flights on TYS to ORD, about 8% of it. Its 75.9% on time is 8 points better than the route as a whole, which runs 68.2%. Ranked by on-time rate it is number two of five carriers on the route, where the range runs from United at 86.4% to PSA at 60.6%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. SkyWest Airlines arrives on time 66.7% of the time; PSA Airlines manages 60.6%. Sample sizes sit next to every figure, because a two-point gap across 834 flights means less than a ten-point one.

On-time performance by carrier on TYS to ORD
Airline	Flights	On time	Avg delay	Cancelled	Grade
United Airlinesthin sample	317	86.4%	85 min	2.52%	A
Envoy Air (this page)thin sample	175	75.9%	57 min	1.71%	B
Republic Airwaysthin sample	79	70.9%	84 min	0.00%	C+
SkyWest Airlines	815	66.7%	110 min	2.94%	C
PSA Airlines	834	60.6%	113 min	6.47%	D−

PSA Airlines cancels 6.5% 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 175 flights.

5am–8am26 flights—
8am–11am—
11am–2pm14 flights—
2pm–5pm92 flights70.3%
5pm–8pm43 flights79.5%
8pm–5am—

Scale runs 60% to 85%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is the strongest at 79.5% on time. The full set of windows spans 9 points.

Across the year

Envoy on TYS to ORD through the year

Jul–Sep 202552 flights78.4%
Oct–Dec 202542 flights61.9%
Apr–Jun 202681 flights81.8%

Scale runs 55% to 85%. 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 75.9% on time across 175 flights.

Envoy on TYS to ORD did not run the same all year. Its best quarter was Apr–Jun 2026 at 81.8% on time and its weakest Oct–Dec 2025 at 61.9%, a swing of 20 points on roughly 58 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.

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 2,351 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%
Carrier
25%
National Airspace System
25%
Extreme weather
7%

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 2,351 reported delay minutes here, that single category outweighs weather by 6 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 2,351 reported delay minutes.

Cancellations sit at 1.71% against a national 1.81%, which is ordinary. Diversions add another 1.14%.

Connections and stage length

What a delay here costs

8.2% 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 about an hour, which a normal layover absorbs.

At 475 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5pm–8pm window matters as much as it does.

The return leg is a different operation and performs like one: it runs 79.1% on time across 176 flights, 3 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 3 points of difference.

One caution: this is a thin sample. 175 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 TYS to ORD

Put together: treat all of this as provisional. 175 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 75.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 170 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