Flight number record

MQ 3648

Envoy Air · Chicago to Greensboro

Route: ORD → GSO
Departs: 18:59
Flights: 342
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s MQ 3648, 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 3648 lands a B−, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 342 flights, with a median arrival 10 minutes early.

On time

77.3%

Arrivals under 15 minutes late, of 326 completed flights

Avg delay

78 min

Across delayed arrivals only, not all flights

Cancelled

4.39%

National rate is 1.81%

1 hour+ late

10.4%

National rate is 8.1%

These figures cover 342 flights between July 2025 and June 2026. Beyond the headline rate, 10.4% 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 3648 flies

MQ 3648 flies ORD to GSO without a single fixed slot. Its most common scheduled departure was 18:59, used on 50 of 342 flights, with 19:26 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 18:5950 flights14.6%
Departs 19:2637 flights10.8%

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 18:59 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and MQ 3648 runs 9 points better at 77.3%. 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 3648 next to ORD to GSO

Every carrier on ORD to GSO combined arrived on time 77.8% of the time across 1,558 flights, so MQ 3648 is about level with it. Envoy flew 877 flights on the same city pair under all its flight numbers, including this one, and those ran 80.3% on time. Across its whole network Envoy Air managed 80.2%, which this flight trails by 3 points.

MQ 3648 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
MQ 3648thin sample	342	77.3%	78 min	4.39%	B−
All Envoy Air on ORD–GSO	877	80.3%	67 min	2.51%	B
All carriers on ORD–GSO	1,558	77.8%	65 min	2.89%	B
Envoy Air, whole network	315,435	80.2%	67 min	2.30%	B

Across the year

MQ 3648 quarter by quarter

MQ 3648 did not run the same all year. Its best quarter was Jul–Sep 2025 at 85.2% on time and its weakest Jan–Mar 2026 at 69.0%, a swing of 16 points on roughly 86 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 flights85.2%
Oct–Dec 202569 flights77.6%
Jan–Mar 202690 flights69.0%
Apr–Jun 202691 flights77.4%

Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, MQ 3648 did best on Tuesday at 85.1% on time and worst on Sunday at 63.3%. Each day rests on about 49 flights, so a gap of 22 points is worth noticing but could still narrow in another year.

Delay causes

Why MQ 3648 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 65% of the 5,784 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
65%
Extreme weather
14%
National Airspace System
13%
Carrier
9%

Extreme weather accounts for 14% 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 2.2 times the usual weather exposure. The split is drawn from 5,784 delay minutes reported on MQ 3648.

Cancellations run at 4.39%, against 1.81% 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.4% 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 589 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

Every one of the 342 flights under MQ 3648 in the data flew ORD to GSO. 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. 342 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 3648

For a booking, the cancellation rate is the figure to plan around on MQ 3648: 4.39% of its 342 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.

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