Route reliability record
GSO→LGA
Greensboro to New York
- Flights
- 1,737
- Period
- September 2025 to August 2026
- Distance
- 461 mi
- Carriers
- 2
This route carries a cancellation problem, not just a delay problem: 6.5% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, close to three flights in four arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,737 GSO to LGA flights, with a median arrival 8 minutes early.
Best time to fly GSO to LGA: a 5am–8am departure, ideally on a Saturday. Flights in that window arrived on time 86.9% of the time and Saturday flights 81.5%, against 76.0% for the route overall.
The US average over the same twelve months is 77.3%, 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
76.0%
Arrivals under 15 minutes late, of 1,622 completed flights
Avg delay
82 min
Across delayed arrivals only, not all flights
Cancelled
6.51%
National rate is 1.89%
Best carrier
Republic
75.9% on time across 1,735 flights
These figures cover 1,737 flights between September 2025 and August 2026. Beyond the headline rate, 10.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Which airline is most reliable on GSO to LGA
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 |
|---|---|---|---|---|---|
| Delta Air Linesthin sample | 2 | 100.0% | — | 0.00% | A+ |
| Republic Airways | 1,735 | 75.9% | 82 min | 6.51% | B− |
Flight by flight
Flights on GSO to LGA
The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.
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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 24 points, against half a point between the best and worst carrier.
- 5am–8am476 flights86.9%
- 8am–11am240 flights82.8%
- 11am–2pm188 flights82.0%
- 2pm–5pm356 flights70.4%
- 5pm–8pm476 flights62.7%
- 8pm–5am1 flights—
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 62.7% on time, against 86.9% 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 5am–8am window is the busiest, with 476 flights scheduled in it.
Explore
Filter GSO to LGA by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On GSO to LGA, the best departure window is 5am–8am at 86.9% on time and the worst is 5pm–8pm at 62.7%, a wide gap of 24.2 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am86.9%
- 8–11am82.8%
- 11am–2pm82.0%
- 2–5pm70.4%
- 5–8pm62.7%
- 8pm–5am—
best all US flightsScale 55% to 95%. Cells under 30 flights show a dash.
Across the year
When delays peak on this route
This route's year swings by 22 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.
September is the best month on the calendar at 87.6% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. November was the busiest month here, with 210 flights.
Across the week, Saturday is the strongest day at 81.5% on time and Thursday the weakest at 71.2%, a spread of 10 points.
Delay causes
Why this route gets delayed
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 32,000 reported delay minutes.
- 37%Late-arriving aircraft
- 35%National Airspace System
- 18%Carrier
- 10%Extreme weather
- 0%Security
37% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 32,000 reported delay minutes here, that single category outweighs weather by 4 to one. The split is drawn from 31,810 reported delay minutes.
35% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 11,000 minutes out of 32,000, against a national NAS share of 21%.
Cancellations run at 6.51%, against 1.89% nationally. That is about one flight in fifteen 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 actually costs
10.5% 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.
At 461 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 runs 74.6% on time across 1,735 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,737 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 LGA after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 6.51% 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. 1,622 completed flights over 12 months sit behind that.
Common questions
GSO to LGA questions
How often is GSO to LGA delayed?
About one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 24.0% of the 1,737 flights in this analysis, against 22.7% nationally. Delayed flights are late by a little over an hour on average.
How reliable is GSO to LGA compared with the rest of the country?
76.0% of flights arrive on time here against a national 77.3%, a difference of about a point against it. That is worth a B− on this site's grading scale.
What time of day has the fewest delays on GSO to LGA?
The 5am–8am departure window is the strongest at 86.9% on time. The 5pm–8pm window is the weakest at 62.7%, 24 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 March delays on GSO to LGA?
March is the weakest month at 66.0% on time, compared with 87.6% in September. Across the year that is 22 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
- LGA to GSO — the return legseparate record
- LaGuardia (LGA) delay statistics
- GSO to ATL, a related route89.2%
- ORD to LGA, a related route66.6%
- GSO to ORD, a related route77.3%
- Delta Air Lines on-time record100.0%
- Republic Airways on-time record75.9%
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Direction matters. GSO to LGA and LGA 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.