Carrier route record

MQORD→MKE

Envoy Air · Chicago to Milwaukee

Flights: 130
Period: July 2025 to June 2026
Share of route: 2%
Carriers: 4

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

Envoy on ORD to MKE draws a D−. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 130 flights, with a median arrival 2 minutes late.

The national on-time rate over the same period is 77.6%, so Envoy on ORD to MKE runs 14 points behind the country as a whole. Across a thousand flights that is about 139 extra late arrivals.

On time

63.7%

Arrivals under 15 minutes late, of 124 completed flights

Avg delay

67 min

Across delayed arrivals only, not all flights

Cancelled

4.62%

National rate is 1.81%

Whole route

64.1%

Every carrier on ORD to MKE, 5,201 flights

These figures cover 130 flights between July 2025 and June 2026. Beyond the headline rate, 14.5% 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 ORD to MKE

Envoy flew 130 of the 5,201 flights on ORD to MKE, about 2% of it. Its 63.7% on time is about level with the route as a whole at 64.1%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from Republic at 78.8% to Envoy at 63.7%. Two 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 ORD to MKE
Airline	Flights	On time	Avg delay	Cancelled	Grade
Republic Airwaysthin sample	112	78.8%	77 min	7.14%	B−
PSA Airlinesthin sample	26	72.7%	312 min	15.38%	C−
SkyWest Airlines	4,933	63.7%	93 min	4.64%	D−
Envoy Air (this page)thin sample	130	63.7%	67 min	4.62%	D−

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 20 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–8am—
8am–11am37 flights51.4%
11am–2pm21 flights—
2pm–5pm56 flights71.7%
5pm–8pm16 flights—
8pm–5am—

Scale runs 45% to 75%. Rows with fewer than 30 flights show a dash.

The best window here is not the first bank but the 2pm–5pm slot at 71.7% on time, ahead of 8am–11am at 51.4%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 2pm–5pm window is the busiest, with 56 flights scheduled in it.

Across the year

Envoy on ORD to MKE through the year

Jul–Sep 20251 flights—
Oct–Dec 202521 flights—
Jan–Mar 202677 flights64.0%
Apr–Jun 202631 flights70.0%

Scale runs 55% to 75%. 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 63.7% on time across 130 flights.

Split by quarter, Envoy on ORD to MKE logged 1 flights in Jul–Sep 2025, 21 flights in Oct–Dec 2025, 77 flights in Jan–Mar 2026 and 31 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 63.7% annual figure is the one to use.

Delay causes

Why Envoy runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 56% of the 3,015 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
56%
National Airspace System
22%
Carrier
12%
Extreme weather
10%

56% 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 3,015 reported delay minutes here, that single category outweighs weather by 5 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 3,015 reported delay minutes.

Cancellations run at 4.62%, against 1.81% nationally. That is roughly one flight in twenty 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 14.5% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

At 67 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 2pm–5pm window matters as much as it does.

The return leg is a different operation and performs like one: it runs 69.7% on time across 130 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. 130 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 ORD to MKE

Put together: the delay figures matter less here than the 4.62% cancellation rate. A late arrival costs you about an hour; a cancelled flight costs you the day. Book the 2pm–5pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 124 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