Route reliability record
DFW→GSO
Dallas-Fort Worth to Greensboro
- Flights
- 930
- Period
- July 2025 to June 2026
- Distance
- 999 mi
- Carriers
- 2
This route draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 930 DFW to GSO flights, with a median arrival 1 minute early.
Best time to fly DFW to GSO: a 8am–11am departure, ideally on a Tuesday. Flights in that window arrived on time 89.5% of the time and Tuesday flights 72.9%, against 66.8% for the route overall.
The national on-time rate over the same period is 77.6%, so this route runs 11 points behind the country as a whole. Across a thousand flights that is about 108 extra late arrivals.
Key figures
On time
66.8%
Arrivals under 15 minutes late, of 900 completed flights
Avg delay
75 min
Across delayed arrivals only, not all flights
Cancelled
3.12%
National rate is 1.81%
Best carrier
American
59.8% on time across 720 flights
These figures cover 930 flights between July 2025 and June 2026. Beyond the headline rate, 12.9% 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 DFW 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 | 210 | 90.0% | 53 min | 0.48% | A+ |
| American Airlines | 720 | 59.8% | 76 min | 3.89% | D− |
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 34 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–11am210 flights89.5%
- 11am–2pm319 flights63.3%
- 2pm–5pm43 flights57.1%
- 5pm–8pm299 flights55.1%
- 8pm–5am59 flights67.2%
Scale runs 45% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 55.1% on time, against 89.5% for the 8am–11am 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 319 flights scheduled in it.
Across the year
When delays peak on this route
This route's year swings by 39 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 44.1% on time, against 83.3% in May. 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. May was the busiest month here, with 93 flights.
Across the week, Tuesday is the strongest day at 72.9% on time and Sunday the weakest at 56.3%. 17 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 61% of the 22,000 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.
- 61%Late-arriving aircraft
- 27%Carrier
- 9%National Airspace System
- 4%Extreme weather
61% 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 22,000 reported delay minutes here, that single category outweighs weather by 17 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 22,322 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 89.5% on time here.
Cancellations run at 3.12%, 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 actually costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 12.9% 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 999 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 78.1% on time across 929 flights, 11 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 11 points of difference.
One caution: this is a thin sample. 930 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.
Work out the risk of missing a connection in GSO after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 3.12% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 900 completed flights over 12 months sit behind that.
Common questions
DFW to GSO questions
How often is DFW to GSO delayed?
About one flight in three arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 33.2% of the 930 flights in this analysis, against 22.4% nationally. Delayed flights are late by a little over an hour on average.
How reliable is DFW to GSO compared with the rest of the country?
66.8% of flights arrive on time here against a national 77.6%, a difference of 11 points against it. That is worth a C− on this site's grading scale.
What time of day has the fewest delays on DFW to GSO?
The 8am–11am departure window is the strongest at 89.5% on time. The 5pm–8pm window is the weakest at 55.1%, 34 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 DFW to GSO?
December is the weakest month at 44.1% on time, compared with 83.3% in May. Across the year that is 39 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 DFW — the return legseparate record
- Dallas/Fort Worth International (DFW) delay statistics
- Envoy Air on DFW to GSO90.0%
- American Airlines on DFW to GSO59.8%
- DFW to ORD, a related route67.6%
- ATL to GSO, a related route83.8%
- DFW to LGA, a related route67.1%
- Envoy Air on-time record90.0%
- American Airlines on-time record59.8%
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Direction matters. DFW to GSO and GSO to DFW are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
Embed DFW to GSO’s on-time badge on your site
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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.