Carrier route record
MQGSP→ORD
Envoy Air · Greer to Chicago
- Flights
- 775
- Period
- July 2025 to June 2026
- Share of route
- 43%
- Carriers
- 6
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Envoy Air.
Envoy on GSP to ORD carries a cancellation problem, not just a delay problem: 3.5% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 775 flights, with a median arrival 6 minutes early.
The national on-time rate over the same period is 77.6%, so Envoy on GSP to ORD runs 5 points behind the country as a whole. Across a thousand flights that is about 51 extra late arrivals.
Key figures
On time
72.5%
Arrivals under 15 minutes late, of 742 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
3.48%
National rate is 1.81%
Whole route
74.9%
Every carrier on GSP to ORD, 1,797 flights
These figures cover 775 flights between July 2025 and June 2026. Beyond the headline rate, 9.2% 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.
Carrier by carrier
Envoy against every carrier on GSP to ORD
Envoy flew 775 of the 1,797 flights on GSP to ORD, about 43% of it. Its 72.5% on time is 2 points worse than the route as a whole, which runs 74.9%. Ranked by on-time rate it is number five of six carriers on the route, where the range runs from United at 100.0% to SkyWest at 70.4%. Four of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlinesthin sample | 1 | 100.0% | — | 0.00% | A+ |
| Republic Airwaysthin sample | 313 | 84.5% | 79 min | 2.88% | B |
| PSA Airlinesthin sample | 127 | 82.9% | 64 min | 2.36% | B |
| American Airlinesthin sample | 54 | 77.6% | 56 min | 9.26% | B− |
| Envoy Air (this page) | 775 | 72.5% | 66 min | 3.48% | C− |
| SkyWest Airlines | 527 | 70.4% | 83 min | 4.74% | C− |
Departure window
When Envoy runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 38 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am136 flights85.2%
- 8am–11am47 flights58.5%
- 11am–2pm295 flights82.1%
- 2pm–5pm—
- 5pm–8pm126 flights47.5%
- 8pm–5am171 flights66.7%
Scale runs 40% to 90%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 47.5% on time, against 85.2% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 11am–2pm window is the busiest, with 295 flights scheduled in it.
Across the year
Envoy on GSP to ORD through the year
July is the worst month at 47.3% on time, 43 points below September, the best at 90.0%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. May was the busiest month here, with 92 flights.
Across the week, Wednesday is the strongest day at 80.6% on time and Thursday the weakest at 66.4%. 14 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Envoy runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 45% of the 13,000 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.
- 45%Late-arriving aircraft
- 28%National Airspace System
- 15%Carrier
- 11%Extreme weather
- 0%Security
Extreme weather accounts for 11% 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 monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 1.8 times the usual weather exposure. The split is drawn from 13,497 reported delay minutes.
45% 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 13,000 reported delay minutes here, that single category outweighs weather by 4 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.
Cancellations run at 3.48%, against 1.81% nationally. That is about 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 stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.2% 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 577 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.
The return leg is a different operation and performs like one: it runs 76.7% on time across 778 flights, 4 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 4 points of difference.
One caution: this is a thin sample. 775 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 Envoy on GSP to ORD
Put together: the delay figures matter less here than the 3.48% cancellation rate. A late arrival costs you about an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 742 completed flights over 12 months sit behind that.
Related
Where to go next
- GSP to ORD, every carrier
- Envoy on ORD to GSP, the return leg
- Republic Airways on GSP to ORD84.5%
- PSA Airlines on GSP to ORD82.9%
- SkyWest Airlines on GSP to ORD70.4%
- Envoy Air network-wide record
- Chicago O'Hare International (ORD) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.