Flight number record

MQ 3690

Envoy Air · Chicago to Cincinnati

Route: ORD → CVG
Departs: 17:34
Flights: 300
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 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 77.6%. The late ones land about an hour behind schedule. That rests on 300 flights, with a median arrival 7 minutes early.

The national on-time rate over the same period is 77.6%, so MQ 3690 runs 7 points behind the country as a whole. Across a thousand flights that is about 65 extra late arrivals.

On time

71.1%

Arrivals under 15 minutes late, of 291 completed flights

Avg delay

67 min

Across delayed arrivals only, not all flights

Cancelled

3.00%

National rate is 1.81%

1 hour+ late

12.0%

National rate is 8.1%

These figures cover 300 flights between July 2025 and June 2026. Beyond the headline rate, 12.0% 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 3690 flies

MQ 3690 flies ORD to CVG without a single fixed slot. Its most common scheduled departure was 17:34, used on 32 of 300 flights, with 20:33 (31 flights) and 20:57 (30 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 17:3432 flights10.7%
Departs 20:3331 flights10.3%
Departs 20:5730 flights10.0%

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 17:34 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and MQ 3690 runs 3 points better at 71.1%. 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 3690 next to ORD to CVG

Every carrier on ORD to CVG combined arrived on time 72.2% of the time across 4,647 flights, so MQ 3690 is about level with it. Envoy flew 1,333 flights on the same city pair under all its flight numbers, including this one, and those ran 71.4% on time. Across its whole network Envoy Air managed 80.2%, which this flight trails by 9 points.

MQ 3690 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
MQ 3690thin sample	300	71.1%	67 min	3.00%	C
All Envoy Air on ORD–CVG	1,333	71.4%	71 min	2.40%	C
All carriers on ORD–CVG	4,647	72.2%	75 min	3.12%	C−
Envoy Air, whole network	315,435	80.2%	67 min	2.30%	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 75 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 202592 flights72.2%
Oct–Dec 202587 flights69.8%
Jan–Mar 202636 flights62.9%
Apr–Jun 202685 flights75.0%

Scale runs 55% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, MQ 3690 did best on Saturday at 82.9% on time and worst on Sunday at 65.1%. Each day rests on about 43 flights, so a gap of 18 points is worth noticing but could still narrow in another year.

Delay causes

Why MQ 3690 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 62% of the 5,631 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
62%
National Airspace System
19%
Carrier
10%
Extreme weather
9%

62% 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 5,631 reported delay minutes here, that single category outweighs weather by 7 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 5,631 delay minutes reported on MQ 3690.

Cancellations run at 3.00%, against 1.81% 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 12.0% 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.

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 about an hour, 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