Carrier route record

OHGSO→DCA

PSA Airlines · Greensboro to Washington

Flights: 446
Period: July 2025 to June 2026
Share of route: 56%
Carriers: 3

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with PSA Airlines.

PSA on GSO to DCA sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.6%. The late ones land close to two hours behind schedule. That rests on 446 flights, with a median arrival 6 minutes early.

The national on-time rate over the same period is 77.6%, so PSA on GSO to DCA runs 7 points behind the country as a whole. Across a thousand flights that is about 72 extra late arrivals.

On time

70.4%

Arrivals under 15 minutes late, of 419 completed flights

Avg delay

111 min

Across delayed arrivals only, not all flights

Cancelled

5.61%

National rate is 1.81%

Whole route

72.7%

Every carrier on GSO to DCA, 800 flights

These figures cover 446 flights between July 2025 and June 2026. Beyond the headline rate, 15.5% 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

PSA against every carrier on GSO to DCA

PSA flew 446 of the 800 flights on GSO to DCA, most of the route. Its 70.4% on time is 2 points worse than the route as a whole, which runs 72.7%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Envoy at 75.6% to PSA at 70.4%. Two 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.

On-time performance by carrier on GSO to DCA
Airline	Flights	On time	Avg delay	Cancelled	Grade
Envoy Airthin sample	240	75.6%	67 min	6.25%	B−
Republic Airwaysthin sample	114	75.5%	65 min	2.63%	B
PSA Airlines (this page)	446	70.4%	111 min	5.61%	C−

Departure window

When PSA runs best on this route

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–8am140 flights81.2%
8am–11am93 flights86.5%
11am–2pm21 flights—
2pm–5pm47 flights60.0%
5pm–8pm145 flights52.6%
8pm–5am—

Scale runs 45% to 90%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 52.6% on time, against 86.5% 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 5pm–8pm window is the busiest, with 145 flights scheduled in it.

Across the year

PSA on GSO to DCA through the year

Jul–Sep 2025141 flights76.1%
Oct–Dec 2025136 flights65.9%
Jan–Mar 2026101 flights73.3%
Apr–Jun 202668 flights63.5%

Scale runs 55% to 80%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 70.4% on time across 446 flights.

PSA on GSO to DCA did not run the same all year. Its best quarter was Jul–Sep 2025 at 76.1% on time and its weakest Apr–Jun 2026 at 63.5%, a swing of 13 points on roughly 112 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Across the week, Saturday is the strongest day at 86.0% on time and Thursday the weakest at 54.4%. 32 points is a smaller lever than departure hour, but it is free.

Delay causes

Why PSA 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 14,000 reported delay minutes.

Carrier
41%
Late-arriving aircraft
38%
National Airspace System
14%
Extreme weather
6%

38% 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 14,000 reported delay minutes here, that single category outweighs weather by 6 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 13,723 reported delay minutes.

The largest share of delay minutes, 41%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 5,655 of the 14,000 delay minutes reported here.

Cancellations run at 5.61%, against 1.81% nationally. That is roughly one flight in twenty 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 15.5% 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.

At 248 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 8am–11am window matters as much as it does.

The return leg runs 68.8% on time across 446 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. 446 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 PSA on GSO to DCA

Put together: the delay figures matter less here than the 5.61% cancellation rate. A late arrival costs you close to two hours; 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. 419 completed flights over 12 months sit behind that.

Where to go next

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.

Key figures