Flight number record
MQ 4025
Envoy Air · Chicago to Marquette
- Route
- ORD → MQT
- Departs
- 18:46
- Flights
- 361
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 D−. 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 361 flights, with a median arrival right on schedule.
The national on-time rate over the same period is 77.3%, so MQ 4025 runs 14 points behind the country as a whole. Across a thousand flights that is about 135 extra late arrivals.
Key figures
On time
63.8%
Arrivals under 15 minutes late, of 340 completed flights
Avg delay
127 min
Across delayed arrivals only, not all flights
Cancelled
4.43%
National rate is 1.89%
1 hour+ late
17.1%
National rate is 8.3%
These figures cover 361 flights between September 2025 and August 2026. Beyond the headline rate, 17.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When MQ 4025 flies
MQ 4025 flies ORD to MQT without a single fixed slot. Its most common scheduled departure was 18:46, used on 46 of 361 flights, with 18:43 (44 flights) and 19:29 (38 flights) next.
- Departs 18:4646 flights12.7%
- Departs 18:4344 flights12.2%
- Departs 19:2938 flights10.5%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 18:46 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and MQ 4025 runs 4 points worse at 63.8%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
MQ 4025 next to ORD to MQT
Every carrier on ORD to MQT combined arrived on time 72.4% of the time across 748 flights, so MQ 4025 is 9 points behind it. Across its whole network Envoy Air managed 81.0%, which this flight trails by 17 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| MQ 4025thin sample | 361 | 63.8% | 127 min | 4.43% | D− |
| All Envoy Air on ORD–MQT | 748 | 72.4% | 104 min | 5.08% | C− |
| All carriers on ORD–MQT | 748 | 72.4% | 104 min | 5.08% | C− |
| Envoy Air, whole network | 320,362 | 81.0% | 70 min | 2.19% | 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 70.0% on time and its weakest Jan–Mar 2026 at 56.6%, a swing of 13 points on roughly 72 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 202530 flights70.0%
- Oct–Dec 202588 flights66.3%
- Jan–Mar 202690 flights56.6%
- Apr–Jun 202691 flights67.9%
- Jul–Sep 202662 flights61.7%
Scale runs 50% to 75%.
By weekday, MQ 4025 did best on Saturday at 74.0% on time and worst on Thursday at 54.2%. Each day rests on about 52 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late MQ 4025 runs when it is late
The 123 late arrivals split 28 under half an hour, 37 between 30 and 60 minutes, and 58 an hour or more.
- 15+ min early76 flights22.4%
- Within 15 min141 flights41.5%
- 15–29 min late28 flights8.2%
- 30–59 min late37 flights10.9%
- 1–2 hours late32 flights9.4%
- 2+ hours late26 flights7.6%
Scale runs 0% to 100%.
Share of 340 completed flights by arrival against schedule.
21 of 125 late departures made up the time and arrived on time, 17% of them. In the other direction, 19 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at MQT.
The worst days
Worst days for MQ 4025
The latest arrival of the period was on 26 November 2025, 19 hours 16 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as extreme weather.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 26 November 2025 | 19 hours 16 minutes | Late-arriving aircraft |
| 15 February 2026 | 16 hours 8 minutes | Extreme weather |
| 18 February 2026 | 14 hours 30 minutes | Late-arriving aircraft |
| 10 September 2025 | 14 hours 10 minutes | Extreme weather |
| 8 January 2026 | 13 hours 28 minutes | Extreme weather |
Delay causes
Why MQ 4025 runs late
Late-arriving aircraft accounts for 51% of the 16,000 delay minutes carriers reported here, and the remaining four split what is left.
- 51%Late-arriving aircraft
- 33%Extreme weather
- 10%National Airspace System
- 6%Carrier
Extreme weather accounts for 33% 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 15,618 delay minutes reported on MQ 4025.
Cancellations run at 4.43%, against 1.89% 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
17.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
Every one of the 361 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. 361 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: 4.43% of its 361 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.
Related
Where to go next
- ORD to MQT, every carrier and departure
- MQT to ORD, the return direction
- Chicago O'Hare International (ORD) delay statistics
- Envoy Air on-time record
- Every Envoy Air flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.