Flight number record

MQ 4025

Envoy Air · Chicago to Marquette

Route: ORD → MQT
Departs: 19:29
Flights: 360
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s MQ 4025, check with Envoy Air. Envoy Air flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.

MQ 4025 draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is about 2.1 hours behind schedule. Build slack into anything you connect to. That rests on 360 flights, with a median arrival 1 minute early.

The national on-time rate over the same period is 77.6%, so MQ 4025 runs 11 points behind the country as a whole. Across a thousand flights that is about 114 extra late arrivals.

On time

66.2%

Arrivals under 15 minutes late, of 340 completed flights

Avg delay

128 min

Across delayed arrivals only, not all flights

Cancelled

4.44%

National rate is 1.81%

1 hour+ late

15.0%

National rate is 8.1%

These figures cover 360 flights between July 2025 and June 2026. Beyond the headline rate, 15.0% 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.

Schedule

When MQ 4025 flies

MQ 4025 flies ORD to MQT without a single fixed slot. Its most common scheduled departure was 19:29, used on 64 of 360 flights, with 18:46 (46 flights) and 18:43 (44 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 19:2964 flights17.8%
Departs 18:4646 flights12.8%
Departs 18:4344 flights12.2%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 19:29 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and MQ 4025 runs 2 points worse at 66.2%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

MQ 4025 next to ORD to MQT

Every carrier on ORD to MQT combined arrived on time 73.4% of the time across 743 flights, so MQ 4025 is 7 points behind it. Across its whole network Envoy Air managed 80.2%, which this flight trails by 14 points.

MQ 4025 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
MQ 4025thin sample	360	66.2%	128 min	4.44%	C−
All Envoy Air on ORD–MQT	743	73.4%	101 min	4.44%	C−
All carriers on ORD–MQT	743	73.4%	101 min	4.44%	C−
Envoy Air, whole network	315,435	80.2%	67 min	2.30%	B

Across the year

MQ 4025 quarter by quarter

MQ 4025 did not run the same all year. Its best quarter was Jul–Sep 2025 at 73.3% on time and its weakest Jan–Mar 2026 at 56.6%, a swing of 17 points on roughly 90 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.

Jul–Sep 202591 flights73.3%
Oct–Dec 202588 flights66.3%
Jan–Mar 202690 flights56.6%
Apr–Jun 202691 flights67.9%

Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, MQ 4025 did best on Saturday at 77.6% on time and worst on Thursday at 52.1%. Each day rests on about 51 flights, so a gap of 25 points is worth noticing but could still narrow in another year.

Delay causes

Why MQ 4025 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 51% of the 15,000 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
51%
Extreme weather
34%
National Airspace System
10%
Carrier
5%

Extreme weather accounts for 34% 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 quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 5.4 times the usual weather exposure. The split is drawn from 14,702 delay minutes reported on MQ 4025.

Cancellations run at 4.44%, against 1.81% nationally. That is roughly one flight in 25 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 routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 15.0% 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.

Every one of the 360 flights under MQ 4025 in the data flew ORD to MQT. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 360 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 MQ 4025

For a booking, the cancellation rate is the figure to plan around on MQ 4025: 4.44% of its 360 scheduled flights did not operate. A late arrival costs about 2.1 hours, but a cancellation costs the day, so leave a later option open.

Where to go next

A flight number here means Envoy Air’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

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