Route reliability record
CLT→GSO
Charlotte to Greensboro
- Flights
- 1,170
- Period
- July 2025 to June 2026
- Distance
- 84 mi
- Carriers
- 3
This route lands a B, about a point better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 1,170 CLT to GSO flights, with a median arrival 7 minutes early.
Best time to fly CLT to GSO: a 11am–2pm departure, ideally on a Wednesday. Flights in that window arrived on time 86.3% of the time and Wednesday flights 86.2%, against 78.9% for the route overall.
The US average over the same twelve months is 77.6%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
78.9%
Arrivals under 15 minutes late, of 1,152 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
1.54%
National rate is 1.81%
Best carrier
American
73.0% on time across 474 flights
These figures cover 1,170 flights between July 2025 and June 2026. Beyond the headline rate, 8.0% 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
Which airline is most reliable on CLT to GSO
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 |
|---|---|---|---|---|---|
| Envoy Airthin sample | 364 | 85.2% | 64 min | 1.37% | A |
| PSA Airlinesthin sample | 332 | 80.4% | 63 min | 1.81% | B |
| American Airlines | 474 | 73.0% | 67 min | 1.48% | C |
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 13 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–8am—
- 8am–11am37 flights81.1%
- 11am–2pm74 flights86.3%
- 2pm–5pm189 flights73.1%
- 5pm–8pm299 flights75.8%
- 8pm–5am571 flights81.3%
Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 11am–2pm slot at 86.3% on time, ahead of 2pm–5pm at 73.1%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 8pm–5am window is the busiest, with 571 flights scheduled in it.
Across the year
When delays peak on this route
This route's year swings by 25 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
July is the worst month at 64.4% on time, 25 points below November, the best at 89.8%. 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. June was the busiest month here, with 125 flights.
Across the week, Wednesday is the strongest day at 86.2% on time and Friday the weakest at 75.1%. 11 points is a smaller lever than departure hour, but it is free.
Delay causes
Why this route gets delayed
One category carries most of the weight here. Late-arriving aircraft accounts for 55% of the 16,000 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.
- 55%Late-arriving aircraft
- 32%Carrier
- 8%National Airspace System
- 4%Extreme weather
55% 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 16,000 reported delay minutes here, that single category outweighs weather by 12 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. The split is drawn from 15,808 reported delay minutes.
Cancellations sit at 1.54% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here actually costs
8.0% 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 about an hour, which a normal layover absorbs.
At 84 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 11am–2pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 85.4% on time across 1,170 flights, 7 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 7 points of difference.
The sample behind these figures is 1,170 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in GSO after this flight
What to do with this
Booking this route
Put together: the calendar is the biggest lever here, not the carrier or the hour. November runs 89.8% on time and July 64.4%, a swing of 25 points. If the dates move at all, move them out of July before you think about anything else. 1,152 completed flights over 12 months sit behind that.
Common questions
CLT to GSO questions
How often is CLT to GSO delayed?
About one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 21.1% of the 1,170 flights in this analysis, against 22.4% nationally. Delayed flights are late by about an hour on average.
How reliable is CLT to GSO compared with the rest of the country?
78.9% of flights arrive on time here against a national 77.6%, a difference of about a point in its favour. That is worth a B on this site's grading scale.
What time of day has the fewest delays on CLT to GSO?
The 11am–2pm departure window is the strongest at 86.3% on time. The 2pm–5pm window is the weakest at 73.1%, 13 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are July delays on CLT to GSO?
July is the weakest month at 64.4% on time, compared with 89.8% in November. Across the year that is 25 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- GSO to CLT — the return legseparate record
- Charlotte Douglas International (CLT) delay statistics
- Envoy Air on CLT to GSO85.2%
- PSA Airlines on CLT to GSO80.4%
- American Airlines on CLT to GSO73.0%
- CLT to MCO, a related route70.6%
- ATL to GSO, a related route83.8%
- CLT to ATL, a related route83.3%
- Envoy Air on-time record85.2%
- PSA Airlines on-time record80.4%
- American Airlines on-time record73.0%
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.04 million flight records
Direction matters. CLT to GSO and GSO to CLT are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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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.