Flight number record

YX 4763

Republic Airways · Washington to Pittsburgh

Route: DCA → PIT
Departs: 22:00
Flights: 279
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s YX 4763, check with Republic Airways. Republic Airways flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.

YX 4763 draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 279 flights, with a median arrival 3 minutes early.

The national on-time rate over the same period is 77.6%, so YX 4763 runs 10 points behind the country as a whole. Across a thousand flights that is about 102 extra late arrivals.

On time

67.4%

Arrivals under 15 minutes late, of 258 completed flights

Avg delay

62 min

Across delayed arrivals only, not all flights

Cancelled

7.53%

National rate is 1.81%

1 hour+ late

11.6%

National rate is 8.1%

These figures cover 279 flights between July 2025 and June 2026. Beyond the headline rate, 11.6% 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.

Schedule

When YX 4763 flies

YX 4763 flies DCA to PIT without a single fixed slot. Its most common scheduled departure was 22:00, used on 115 of 279 flights, with 20:59 (33 flights) and 19:59 (30 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 22:00115 flights41.2%
Departs 20:5933 flights11.8%
Departs 19:5930 flights10.8%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 22:00 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and YX 4763 runs 3 points worse at 67.4%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

YX 4763 next to DCA to PIT

Every carrier on DCA to PIT combined arrived on time 75.2% of the time across 1,431 flights, so YX 4763 is 8 points behind it. Republic flew 773 flights on the same city pair under all its flight numbers, including this one, and those ran 74.1% on time. Across its whole network Republic Airways managed 78.5%, which this flight trails by 11 points.

YX 4763 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 4763thin sample	279	67.4%	62 min	7.53%	C−
All Republic Airways on DCA–PIT	773	74.1%	57 min	3.88%	C−
All carriers on DCA–PIT	1,431	75.2%	64 min	4.26%	B−
Republic Airways, whole network	361,482	78.5%	72 min	4.08%	B−

Across the year

YX 4763 quarter by quarter

YX 4763 did not run the same all year. Its best quarter was Apr–Jun 2026 at 77.3% on time and its weakest Jan–Mar 2026 at 56.2%, a swing of 21 points on roughly 70 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.

Jul–Sep 202564 flights75.0%
Oct–Dec 202556 flights61.1%
Jan–Mar 202681 flights56.2%
Apr–Jun 202678 flights77.3%

Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, YX 4763 did best on Tuesday at 78.6% on time and worst on Friday at 57.1%. Each day rests on about 40 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why YX 4763 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 61% of the 5,168 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.

Late-arriving aircraft
61%
Carrier
27%
National Airspace System
7%
Extreme weather
5%

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 5,168 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 5,168 delay minutes reported on YX 4763.

Cancellations run at 7.53%, against 1.81% nationally. That is roughly one flight in twelve 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 routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 11.6% 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.

Every one of the 279 flights under YX 4763 in the data flew DCA to PIT. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 279 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 YX 4763

For a booking, the cancellation rate is the figure to plan around on YX 4763: 7.53% of its 279 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.

Where to go next

A flight number here means Republic Airways’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

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