Route reliability record
GSO→CLT
Greensboro to Charlotte
- Flights
- 1,170
- Period
- July 2025 to June 2026
- Distance
- 84 mi
- Carriers
- 3
This route earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 1,170 GSO to CLT flights, with a median arrival 10 minutes early.
Best time to fly GSO to CLT: a 5am–8am departure, ideally on a Saturday. Flights in that window arrived on time 92.4% of the time and Saturday flights 89.8%, against 85.4% for the route overall.
Set against the rest of the country, this route's record is 8 points better than the US average of 77.6%. That gap is worth roughly 78 fewer late arrivals for every thousand flights.
Key figures
On time
85.4%
Arrivals under 15 minutes late, of 1,153 completed flights
Avg delay
70 min
Across delayed arrivals only, not all flights
Cancelled
1.45%
National rate is 1.81%
Best carrier
American
80.8% on time across 475 flights
These figures cover 1,170 flights between July 2025 and June 2026. The median arrival is 10 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
Which airline is most reliable on GSO to CLT
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 | 90.8% | 36 min | 1.10% | A |
| PSA Airlinesthin sample | 331 | 86.2% | 81 min | 1.81% | A |
| American Airlines | 475 | 80.8% | 77 min | 1.47% | B |
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 20 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–8am548 flights92.4%
- 8am–11am122 flights85.6%
- 11am–2pm42 flights81.0%
- 2pm–5pm134 flights83.6%
- 5pm–8pm280 flights75.1%
- 8pm–5am44 flights72.7%
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 92.4% of the time, against 72.7% for the overnight window. That is 20 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 548 flights scheduled in it.
Across the year
When delays peak on this route
This route's year swings by 28 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.
December is the weak month at 68.2% on time, against 96.5% in November. 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. June was the busiest month here, with 125 flights.
Across the week, Saturday is the strongest day at 89.8% on time and Friday the weakest at 78.7%. 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 12,000 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
- 27%Carrier
- 10%National Airspace System
- 8%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 12,000 reported delay minutes here, that single category outweighs weather by 7 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 11,724 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 92.4% on time here.
Cancellations sit at 1.45% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here actually costs
5.2% 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 a little over 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 5am–8am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 78.9% on time across 1,170 flights, 7 points below 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 CLT 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 96.5% on time and December 68.2%, a swing of 28 points. If the dates move at all, move them out of December before you think about anything else. 1,153 completed flights over 12 months sit behind that.
Common questions
GSO to CLT questions
How often is GSO to CLT delayed?
About one flight in seven arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 14.6% of the 1,170 flights in this analysis, against 22.4% nationally. Delayed flights are late by a little over an hour on average.
How reliable is GSO to CLT compared with the rest of the country?
85.4% of flights arrive on time here against a national 77.6%, a difference of 8 points in its favour. That is worth a A on this site's grading scale.
What time of day has the fewest delays on GSO to CLT?
The 5am–8am departure window is the strongest at 92.4% on time. The 8pm–5am window is the weakest at 72.7%, 20 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 December delays on GSO to CLT?
December is the weakest month at 68.2% on time, compared with 96.5% in November. Across the year that is 28 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
- CLT to GSO — the return legseparate record
- Charlotte Douglas International (CLT) delay statistics
- Envoy Air on GSO to CLT90.8%
- PSA Airlines on GSO to CLT86.2%
- American Airlines on GSO to CLT80.8%
- GSO to ATL, a related route89.6%
- MCO to CLT, a related route78.4%
- GSO to LGA, a related route77.2%
- Envoy Air on-time record90.8%
- PSA Airlines on-time record86.2%
- American Airlines on-time record80.8%
- 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. GSO to CLT and CLT to GSO 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.