Flight number record

YX 4596

Republic Airways · Nashville to Raleigh

Route: BNA → RDU
Departs: 16:53
Flights: 303
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s YX 4596, 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 4596 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 303 flights, with a median arrival 1 minute late.

The national on-time rate over the same period is 77.6%, so YX 4596 runs 10 points behind the country as a whole. Across a thousand flights that is about 104 extra late arrivals.

On time

67.2%

Arrivals under 15 minutes late, of 293 completed flights

Avg delay

66 min

Across delayed arrivals only, not all flights

Cancelled

3.30%

National rate is 1.81%

1 hour+ late

12.6%

National rate is 8.1%

These figures cover 303 flights between July 2025 and June 2026. Beyond the headline rate, 12.6% 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 4596 flies

YX 4596 flies BNA to RDU without a single fixed slot. Its most common scheduled departure was 16:53, used on 35 of 303 flights, with 17:26 (32 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 16:5335 flights11.6%
Departs 17:2632 flights10.6%

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 16:53 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and YX 4596 runs 5 points worse at 67.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

YX 4596 next to BNA to RDU

Every carrier on BNA to RDU combined arrived on time 75.5% of the time across 2,213 flights, so YX 4596 is 8 points behind it. Republic flew 952 flights on the same city pair under all its flight numbers, including this one, and those ran 75.5% on time. Across its whole network Republic Airways managed 78.5%, which this flight trails by 11 points.

YX 4596 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 4596thin sample	303	67.2%	66 min	3.30%	C−
All Republic Airways on BNA–RDU	952	75.5%	59 min	2.84%	B
All carriers on BNA–RDU	2,213	75.5%	52 min	1.90%	B
Republic Airways, whole network	361,482	78.5%	72 min	4.08%	B−

Across the year

YX 4596 quarter by quarter

YX 4596 did not run the same all year. Its best quarter was Jul–Sep 2025 at 74.4% on time and its weakest Oct–Dec 2025 at 55.7%, a swing of 19 points on roughly 76 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 202584 flights74.4%
Oct–Dec 202582 flights55.7%
Jan–Mar 202690 flights70.9%
Apr–Jun 202647 flights67.4%

Scale runs 45% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, YX 4596 did best on Saturday at 76.7% on time and worst on Thursday at 57.1%. Each day rests on about 43 flights, so a gap of 20 points is worth noticing but could still narrow in another year.

Delay causes

Why YX 4596 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 73% of the 6,287 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
73%
National Airspace System
16%
Carrier
8%
Extreme weather
3%

73% 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 6,287 reported delay minutes here, that single category outweighs weather by 24 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 6,287 delay minutes reported on YX 4596.

Cancellations run at 3.30%, 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 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. 12.6% 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.

The same number turns up on one other city pair in the data, including RDU to LGA (43), but none flew often enough under YX 4596 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BNA to RDU only.

One caution: this is a thin sample. 303 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 4596

For a booking, the cancellation rate is the figure to plan around on YX 4596: 3.30% of its 303 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