Flight number record
MQ 3648
Envoy Air · Chicago to Greensboro
- Route
- ORD → GSO
- Departs
- 18:59
- Flights
- 342
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 sits in the middle of the pack with a C−. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 342 flights, with a median arrival 9 minutes early.
Key figures
On time
74.4%
Arrivals under 15 minutes late, of 328 completed flights
Avg delay
85 min
Across delayed arrivals only, not all flights
Cancelled
4.09%
National rate is 1.89%
1 hour+ late
11.6%
National rate is 8.3%
These figures cover 342 flights between September 2025 and August 2026. Beyond the headline rate, 11.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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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.
- Departs 18:5950 flights14.6%
- Departs 19:2637 flights10.8%
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 18:59 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and MQ 3648 runs 6 points better at 74.4%. 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 3648 next to ORD to GSO
Every carrier on ORD to GSO combined arrived on time 76.1% of the time across 1,560 flights, so MQ 3648 is 2 points behind it. Envoy flew 947 flights on the same city pair under all its flight numbers, including this one, and those ran 78.0% on time. Across its whole network Envoy Air managed 81.0%, which this flight trails by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| MQ 3648thin sample | 342 | 74.4% | 85 min | 4.09% | C− |
| All Envoy Air on ORD–GSO | 947 | 78.0% | 71 min | 2.43% | B |
| All carriers on ORD–GSO | 1,560 | 76.1% | 68 min | 3.01% | B− |
| Envoy Air, whole network | 320,362 | 81.0% | 70 min | 2.19% | 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 93.3% on time and its weakest Jul–Sep 2026 at 65.0%, a swing of 28 points on roughly 68 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 flights93.3%
- Oct–Dec 202569 flights77.6%
- Jan–Mar 202690 flights69.0%
- Apr–Jun 202691 flights77.4%
- Jul–Sep 202662 flights65.0%
Scale runs 55% to 100%.
By weekday, MQ 3648 did best on Tuesday at 82.6% on time and worst on Sunday at 60.0%. Each day rests on about 49 flights, so a gap of 23 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late MQ 3648 runs when it is late
MQ 3648 often beats the schedule: 124 of 328 completed flights, 38%, arrived 15 minutes or more early. The 84 late arrivals split 22 under half an hour, 24 between 30 and 60 minutes, and 38 an hour or more.
- 15+ min early124 flights37.8%
- Within 15 min120 flights36.6%
- 15–29 min late22 flights6.7%
- 30–59 min late24 flights7.3%
- 1–2 hours late19 flights5.8%
- 2+ hours late19 flights5.8%
Scale runs 0% to 100%.
Share of 328 completed flights by arrival against schedule.
22 of 92 late departures made up the time and arrived on time, 24% of them. 14 flights left on time and still arrived late.
The worst days
Worst days for MQ 3648
The latest arrival of the period was on 18 January 2026, 6 hours 7 minutes behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 18 January 2026 | 6 hours 7 minutes | Extreme weather |
| 13 August 2026 | 5 hours 50 minutes | Extreme weather |
| 9 August 2026 | 5 hours 25 minutes | Late-arriving aircraft |
| 30 November 2025 | 5 hours 8 minutes | Late-arriving aircraft |
| 4 May 2026 | 4 hours 11 minutes | Late-arriving aircraft |
Delay causes
Why MQ 3648 runs late
Late-arriving aircraft accounts for 63% of the 7,122 delay minutes carriers reported here, and the remaining four split what is left.
- 63%Late-arriving aircraft
- 17%Extreme weather
- 12%National Airspace System
- 8%Carrier
Extreme weather accounts for 17% 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 2.8 times the usual weather exposure. The split is drawn from 7,122 delay minutes reported on MQ 3648.
Cancellations run at 4.09%, against 1.89% nationally. That is about 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
11.6% 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 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.
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: 4.09% of its 342 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- ORD to GSO, every carrier and departure
- GSO to ORD, the return direction
- SkyWest Airlines 5395 on the same route80.2%
- 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
- 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.