Flight number record
MQ 3690
Envoy Air · Chicago to Cincinnati
- Route
- ORD → CVG
- Departs
- 19:29
- Flights
- 300
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s MQ 3690, 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 3690 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 300 flights, with a median arrival 9 minutes early.
The national on-time rate over the same period is 77.3%, so MQ 3690 runs 7 points behind the country as a whole. Across a thousand flights that is about 65 extra late arrivals.
Key figures
On time
70.8%
Arrivals under 15 minutes late, of 291 completed flights
Avg delay
74 min
Across delayed arrivals only, not all flights
Cancelled
3.00%
National rate is 1.89%
1 hour+ late
13.7%
National rate is 8.3%
These figures cover 300 flights between September 2025 and August 2026. Beyond the headline rate, 13.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When MQ 3690 flies
MQ 3690 flies ORD to CVG without a single fixed slot. Its most common scheduled departure was 19:29, used on 61 of 300 flights, with 17:34 (32 flights) and 20:57 (30 flights) next.
- Departs 19:2961 flights20.3%
- Departs 17:3432 flights10.7%
- Departs 20:5730 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 19:29 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and MQ 3690 runs 3 points better at 70.8%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
MQ 3690 next to ORD to CVG
Every carrier on ORD to CVG combined arrived on time 72.1% of the time across 4,690 flights, so MQ 3690 is about level with it. Envoy flew 1,357 flights on the same city pair under all its flight numbers, including this one, and those ran 72.4% on time. Across its whole network Envoy Air managed 81.0%, which this flight trails by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| MQ 3690thin sample | 300 | 70.8% | 74 min | 3.00% | C |
| All Envoy Air on ORD–CVG | 1,357 | 72.4% | 78 min | 2.28% | C |
| All carriers on ORD–CVG | 4,690 | 72.1% | 77 min | 3.26% | C− |
| Envoy Air, whole network | 320,362 | 81.0% | 70 min | 2.19% | B |
Across the year
MQ 3690 quarter by quarter
MQ 3690 did not run the same all year. Its best quarter was Apr–Jun 2026 at 75.0% on time and its weakest Jan–Mar 2026 at 62.9%, a swing of 12 points on roughly 60 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 flights73.3%
- Oct–Dec 202587 flights69.8%
- Jan–Mar 202636 flights62.9%
- Apr–Jun 202685 flights75.0%
- Jul–Sep 202662 flights70.0%
Scale runs 55% to 80%.
By weekday, MQ 3690 did best on Saturday at 77.8% on time and worst on Wednesday at 61.4%. Each day rests on about 43 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late MQ 3690 runs when it is late
MQ 3690 often beats the schedule: 115 of 291 completed flights, 40%, arrived 15 minutes or more early. The 85 late arrivals split 19 under half an hour, 26 between 30 and 60 minutes, and 40 an hour or more.
- 15+ min early115 flights39.5%
- Within 15 min91 flights31.3%
- 15–29 min late19 flights6.5%
- 30–59 min late26 flights8.9%
- 1–2 hours late26 flights8.9%
- 2+ hours late14 flights4.8%
Scale runs 0% to 100%.
Share of 291 completed flights by arrival against schedule.
21 of 94 late departures made up the time and arrived on time, 22% of them. 12 flights left on time and still arrived late.
The worst days
Worst days for MQ 3690
The latest arrival of the period was on 12 August 2026, 4 hours 29 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 12 August 2026 | 4 hours 29 minutes | Late-arriving aircraft |
| 17 June 2026 | 4 hours 17 minutes | Late-arriving aircraft |
| 4 July 2026 | 3 hours 59 minutes | Carrier |
| 2 December 2025 | 3 hours 56 minutes | Late-arriving aircraft |
| 10 June 2026 | 3 hours 48 minutes | Late-arriving aircraft |
Delay causes
Why MQ 3690 runs late
Late-arriving aircraft accounts for 62% of the 6,249 delay minutes carriers reported here, and the remaining four split what is left.
- 62%Late-arriving aircraft
- 19%National Airspace System
- 12%Carrier
- 8%Extreme weather
62% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,249 reported delay minutes here, that single category outweighs weather by 8 to one. The split is drawn from 6,249 delay minutes reported on MQ 3690.
Cancellations run at 3.00%, against 1.89% nationally. That is roughly one flight in 30 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
13.7% 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.
The same number turns up on four other city pairs in the data, including OMA to ORD (26), ORD to OMA (26) and LIT to ORD (4), but none flew often enough under MQ 3690 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ORD to CVG only.
One caution: this is a thin sample. 300 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 3690
For a booking, the cancellation rate is the figure to plan around on MQ 3690: 3.00% of its 300 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- ORD to CVG, every carrier and departure
- CVG to ORD, the return direction
- Republic Airways 3498 on the same route86.1%
- Chicago O'Hare International (ORD) delay statistics
- Cincinnati/Northern Kentucky International (CVG) 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.