Carrier route record
OOGSO→ORD
SkyWest Airlines · Greensboro to Chicago
- Flights
- 529
- Period
- September 2025 to August 2026
- Share of route
- 34%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on GSO to ORD sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 4 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 529 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.3%, so SkyWest on GSO to ORD runs 4 points behind the country as a whole. Across a thousand flights that is about 44 extra late arrivals.
Key figures
On time
72.9%
Arrivals under 15 minutes late, of 505 completed flights
Avg delay
70 min
Across delayed arrivals only, not all flights
Cancelled
4.16%
National rate is 1.89%
Whole route
77.3%
Every carrier on GSO to ORD, 1,560 flights
These figures cover 529 flights between September 2025 and August 2026. Beyond the headline rate, 8.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
SkyWest against every carrier on GSO to ORD
SkyWest flew 529 of the 1,560 flights on GSO to ORD, about 34% of it. Its 72.9% on time is 4 points worse than the route as a whole, which runs 77.3%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Republic at 87.3% to SkyWest at 72.9%. One 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 |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 85 | 87.3% | 81 min | 7.06% | A− |
| Envoy Air | 946 | 79.0% | 89 min | 2.75% | B |
| SkyWest Airlines (this page) | 529 | 72.9% | 70 min | 4.16% | C− |
Flight by flight
SkyWest flight numbers on GSO to ORD
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When SkyWest runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 26 points, against half a point between the best and worst carrier.
- 5am–8am127 flights88.7%
- 8am–11am108 flights76.7%
- 11am–2pm25 flights—
- 2pm–5pm6 flights—
- 5pm–8pm261 flights63.2%
- 8pm–5am2 flights—
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 63.2% on time, against 88.7% 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 5pm–8pm window is the busiest, with 261 flights scheduled in it.
Across the year
SkyWest on GSO to ORD through the year
January is the weak month at 60.7% on time, against 85.5% in September. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. April was the busiest month here, with 88 flights.
Across the week, Thursday is the strongest day at 78.9% on time and Friday the weakest at 65.2%, a spread of 14 points.
Arrival by arrival
How late SkyWest on GSO to ORD runs when it is late
SkyWest on GSO to ORD often beats the schedule: 130 of 505 completed flights, 26%, arrived 15 minutes or more early. The 137 late arrivals split 58 under half an hour, 38 between 30 and 60 minutes, and 41 an hour or more.
- 15+ min early130 flights25.7%
- Within 15 min238 flights47.1%
- 15–29 min late58 flights11.5%
- 30–59 min late38 flights7.5%
- 1–2 hours late24 flights4.8%
- 2+ hours late17 flights3.4%
Scale runs 0% to 100%.
Share of 505 completed flights by arrival against schedule.
12 of 78 late departures made up the time and arrived on time, 15% of them. In the other direction, 71 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at ORD.
The worst days
Worst days for SkyWest on GSO to ORD
The latest arrival of the period was on 31 March 2026, 20 hours 36 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in March 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 31 March 2026 | 20 hours 36 minutes | Late-arriving aircraft |
| 30 January 2026 | 6 hours 41 minutes | National Airspace System |
| 31 March 2026 | 6 hours 31 minutes | Carrier |
| 8 March 2026 | 5 hours 27 minutes | Carrier |
| 4 May 2026 | 4 hours 18 minutes | Late-arriving aircraft |
Delay causes
Why SkyWest runs late on this route
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 9,526 reported delay minutes.
- 37%Carrier
- 31%National Airspace System
- 29%Late-arriving aircraft
- 2%Extreme weather
The largest share of delay minutes, 37%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,556 of the 9,526 delay minutes reported here. The split is drawn from 9,526 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 88.7% on time here.
Cancellations run at 4.16%, 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 stage length
What a delay here costs
8.1% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
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.
The return leg runs 71.1% on time across 528 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 529 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 SkyWest on GSO to ORD
Put together: the delay figures matter less here than the 4.16% cancellation rate. A late arrival costs you a little over 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. 505 completed flights over 12 months sit behind that.
Related
Where to go next
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.