Flight number record

YX 4589

Republic Airways · New York to Norfolk

Route: LGA → ORF
Departs: 21:29
Flights: 306
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s YX 4589, 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 4589 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 306 flights, with a median arrival 4 minutes early.

The national on-time rate over the same period is 77.6%, so YX 4589 runs 11 points behind the country as a whole. Across a thousand flights that is about 114 extra late arrivals.

On time

66.2%

Arrivals under 15 minutes late, of 272 completed flights

Avg delay

75 min

Across delayed arrivals only, not all flights

Cancelled

11.11%

National rate is 1.81%

1 hour+ late

16.2%

National rate is 8.1%

These figures cover 306 flights between July 2025 and June 2026. Beyond the headline rate, 16.2% 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 4589 flies

YX 4589 flies LGA to ORF without a single fixed slot. Its most common scheduled departure was 21:29, used on 163 of 306 flights, with 20:29 (49 flights) and 21:10 (48 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 21:29163 flights53.3%
Departs 20:2949 flights16.0%
Departs 21:1048 flights15.7%

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 21:29 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and YX 4589 runs 4 points worse at 66.2%. 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 4589 next to LGA to ORF

Every carrier on LGA to ORF combined arrived on time 76.4% of the time across 1,382 flights, so YX 4589 is 10 points behind it. Republic flew 1,377 flights on the same city pair under all its flight numbers, including this one, and those ran 76.5% on time. Across its whole network Republic Airways managed 78.5%, which this flight trails by 12 points.

YX 4589 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 4589thin sample	306	66.2%	75 min	11.11%	C−
All Republic Airways on LGA–ORF	1,377	76.5%	62 min	6.90%	B−
All carriers on LGA–ORF	1,382	76.4%	62 min	6.87%	B−
Republic Airways, whole network	361,482	78.5%	72 min	4.08%	B−

Across the year

YX 4589 quarter by quarter

YX 4589 did not run the same all year. Its best quarter was Jul–Sep 2025 at 75.7% on time and its weakest Oct–Dec 2025 at 53.8%, a swing of 22 points on roughly 77 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 202578 flights75.7%
Oct–Dec 202572 flights53.8%
Jan–Mar 202678 flights58.8%
Apr–Jun 202678 flights75.4%

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

By weekday, YX 4589 ranged from 61.9% on Sunday to 69.8% on Friday. With about 44 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why YX 4589 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 65% of the 6,904 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
65%
Extreme weather
13%
Carrier
11%
National Airspace System
10%
Security
0%

Extreme weather accounts for 13% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.1 times the usual weather exposure. The split is drawn from 6,904 delay minutes reported on YX 4589.

Cancellations run at 11.11%, against 1.81% nationally. That is about one flight in nine 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. 16.2% 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 306 flights under YX 4589 in the data flew LGA to ORF. 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. 306 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 4589

For a booking, the cancellation rate is the figure to plan around on YX 4589: 11.11% of its 306 scheduled flights did not operate. A late arrival costs a little over 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