Flight number record
MQ 3894
Envoy Air · Cincinnati to Chicago
- Route
- CVG → ORD
- Departs
- 09:58
- Flights
- 359
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s MQ 3894, 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 3894 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 359 flights, with a median arrival 4 minutes early.
The national on-time rate over the same period is 77.3%, so MQ 3894 runs 5 points behind the country as a whole. Across a thousand flights that is about 51 extra late arrivals.
Key figures
On time
72.2%
Arrivals under 15 minutes late, of 356 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
0.84%
National rate is 1.89%
1 hour+ late
8.7%
National rate is 8.3%
These figures cover 359 flights between September 2025 and August 2026. Beyond the headline rate, 8.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When MQ 3894 flies
MQ 3894 flies CVG to ORD without a single fixed slot. Its most common scheduled departure was 09:58, used on 47 of 359 flights, with 08:30 (36 flights) next.
- Departs 09:5847 flights13.1%
- Departs 08:3036 flights10.0%
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 09:58 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and MQ 3894 runs 12 points worse at 72.2%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
MQ 3894 next to CVG to ORD
Every carrier on CVG to ORD combined arrived on time 70.8% of the time across 4,673 flights, so MQ 3894 is about level with it. Envoy flew 1,367 flights on the same city pair under all its flight numbers, including this one, and those ran 74.3% on time. Across its whole network Envoy Air managed 81.0%, which this flight trails by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| MQ 3894thin sample | 359 | 72.2% | 68 min | 0.84% | C+ |
| All Envoy Air on CVG–ORD | 1,367 | 74.3% | 78 min | 2.56% | C |
| All carriers on CVG–ORD | 4,673 | 70.8% | 88 min | 3.49% | C− |
| Envoy Air, whole network | 320,362 | 81.0% | 70 min | 2.19% | B |
Across the year
MQ 3894 quarter by quarter
MQ 3894 did not run the same all year. Its best quarter was Jul–Sep 2026 at 82.3% on time and its weakest Jul–Sep 2025 at 43.3%, a swing of 39 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 flights43.3%
- Oct–Dec 202591 flights57.8%
- Jan–Mar 202685 flights82.1%
- Apr–Jun 202691 flights80.0%
- Jul–Sep 202662 flights82.3%
Scale runs 35% to 90%.
By weekday, MQ 3894 did best on Tuesday at 78.4% on time and worst on Sunday at 64.0%. Each day rests on about 51 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late MQ 3894 runs when it is late
MQ 3894 often beats the schedule: 98 of 356 completed flights, 28%, arrived 15 minutes or more early. The 99 late arrivals split 43 under half an hour, 25 between 30 and 60 minutes, and 31 an hour or more.
- 15+ min early98 flights27.5%
- Within 15 min159 flights44.7%
- 15–29 min late43 flights12.1%
- 30–59 min late25 flights7.0%
- 1–2 hours late19 flights5.3%
- 2+ hours late12 flights3.4%
Scale runs 0% to 100%.
Share of 356 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 65 departures that left 15 minutes late or more, only 5 made it up before arrival. In the other direction, 39 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 ORD.
The worst days
Worst days for MQ 3894
The latest arrival of the period was on 19 December 2025, 13 hours 38 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across December, March, May and August, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 December 2025 | 13 hours 38 minutes | Late-arriving aircraft |
| 17 March 2026 | 8 hours 39 minutes | Late-arriving aircraft |
| 6 March 2026 | 4 hours 45 minutes | National Airspace System |
| 8 May 2026 | 3 hours 41 minutes | Carrier |
| 3 August 2026 | 3 hours 36 minutes | Carrier |
Delay causes
Why MQ 3894 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 6,744 reported delay minutes.
- 38%National Airspace System
- 29%Carrier
- 25%Late-arriving aircraft
- 7%Extreme weather
38% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,591 minutes out of 6,744, against a national NAS share of 21%. The split is drawn from 6,744 delay minutes reported on MQ 3894.
Cancellations are rare at 0.84%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
8.7% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The same number turns up on one other city pair in the data, including ORD to CVG (47), but none flew often enough under MQ 3894 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to CVG to ORD only.
One caution: this is a thin sample. 359 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 3894
For a booking, read MQ 3894 as 72.2% on time with 0.84% cancelled over 359 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- CVG to ORD, every carrier and departure
- ORD to CVG, the return direction
- Envoy Air 4094 on the same route81.7%
- Republic Airways 3485 on the same route83.9%
- Cincinnati/Northern Kentucky International (CVG) delay statistics
- 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
- Worst months to fly in the US, ranked by the data
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.