Flight number record

MQ 3655

Envoy Air · Columbia to Chicago

Route: COU → ORD
Departs: 06:00
Flights: 320
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s MQ 3655, 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 3655 earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 320 flights, with a median arrival 9 minutes early.

Set against the rest of the country, MQ 3655's record is 8 points better than the US average of 77.6%. That gap is worth roughly 78 fewer late arrivals for every thousand flights.

On time

85.4%

Arrivals under 15 minutes late, of 314 completed flights

Avg delay

105 min

Across delayed arrivals only, not all flights

Cancelled

1.25%

National rate is 1.81%

1 hour+ late

6.7%

National rate is 8.1%

These figures cover 320 flights between July 2025 and June 2026. The median arrival is 9 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Schedule

When MQ 3655 flies

MQ 3655 flies COU to ORD without a single fixed slot. Its most common scheduled departure was 06:00, used on 127 of 320 flights, with 06:24 (33 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:00127 flights39.7%
Departs 06:2433 flights10.3%

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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and MQ 3655 runs 4 points worse at 85.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

MQ 3655 next to COU to ORD

Every carrier on COU to ORD combined arrived on time 72.7% of the time across 1,903 flights, so MQ 3655 is 13 points ahead of it. Envoy flew 1,125 flights on the same city pair under all its flight numbers, including this one, and those ran 75.7% on time. Across its whole network Envoy Air managed 80.2%, which this flight beats by 5 points.

MQ 3655 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
MQ 3655thin sample	320	85.4%	105 min	1.25%	A
All Envoy Air on COU–ORD	1,125	75.7%	78 min	2.76%	B
All carriers on COU–ORD	1,903	72.7%	95 min	3.63%	C−
Envoy Air, whole network	315,435	80.2%	67 min	2.30%	B

Across the year

MQ 3655 quarter by quarter

MQ 3655 did not run the same all year. Its best quarter was Apr–Jun 2026 at 91.5% on time and its weakest Oct–Dec 2025 at 77.3%, a swing of 14 points on roughly 80 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 flights85.7%
Oct–Dec 202592 flights77.3%
Jan–Mar 202689 flights89.8%
Apr–Jun 202647 flights91.5%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, MQ 3655 did best on Tuesday at 91.1% on time and worst on Sunday at 72.7%. Each day rests on about 46 flights, so a gap of 18 points is worth noticing but could still narrow in another year.

Delay causes

Why MQ 3655 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 4,820 reported delay minutes.

Carrier
34%
National Airspace System
28%
Late-arriving aircraft
25%
Extreme weather
13%
Security
0%

Extreme weather accounts for 13% 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 2.1 times the usual weather exposure. The split is drawn from 4,820 delay minutes reported on MQ 3655.

Cancellations sit at 1.25% against a national 1.81%, which is ordinary. Diversions add another 0.62%.

Connections and routes

What a delay on this flight costs

6.7% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last close to two hours, which a normal layover absorbs.

The same number turns up on two other city pairs in the data, including DFW to HSV (44) and HSV to DFW (37), but none flew often enough under MQ 3655 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to COU to ORD only.

One caution: this is a thin sample. 320 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 3655

For a booking, MQ 3655 has one of the better records a US domestic flight can show: 85.4% on time and 1.25% cancelled. That is a base rate, not a promise about any single day.

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