Flight number record
YX 4589
Republic Airways · New York to Norfolk
- Route
- LGA → ORF
- Departs
- 21:29
- Flights
- 307
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 D−. Roughly 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 307 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.3%, so YX 4589 runs 14 points behind the country as a whole. Across a thousand flights that is about 138 extra late arrivals.
Key figures
On time
63.5%
Arrivals under 15 minutes late, of 271 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
11.73%
National rate is 1.89%
1 hour+ late
17.3%
National rate is 8.3%
These figures cover 307 flights between September 2025 and August 2026. Beyond the headline rate, 17.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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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 167 of 307 flights, with 21:10 (48 flights) and 20:59 (38 flights) next.
- Departs 21:29167 flights54.4%
- Departs 21:1048 flights15.6%
- Departs 20:5938 flights12.4%
Scale runs 0% to 100%.
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 70.1%, and YX 4589 runs 7 points worse at 63.5%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
YX 4589 next to LGA to ORF
Every carrier on LGA to ORF combined arrived on time 74.0% of the time across 1,231 flights, so YX 4589 is 11 points behind it. Across its whole network Republic Airways managed 78.1%, which this flight trails by 15 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 4589thin sample | 307 | 63.5% | 68 min | 11.73% | D− |
| All Republic Airways on LGA–ORF | 1,231 | 74.0% | 62 min | 6.82% | C− |
| All carriers on LGA–ORF | 1,231 | 74.0% | 62 min | 6.82% | C− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 4589 quarter by quarter
YX 4589 did not run the same all year. Its best quarter was Apr–Jun 2026 at 75.4% on time and its weakest Jul–Sep 2026 at 51.2%, a swing of 24 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 202526 flights—
- Oct–Dec 202572 flights53.8%
- Jan–Mar 202678 flights58.8%
- Apr–Jun 202678 flights75.4%
- Jul–Sep 202653 flights51.2%
Scale runs 45% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, YX 4589 ranged from 56.1% on Sunday to 65.9% on Tuesday. With about 44 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late YX 4589 runs when it is late
YX 4589 often beats the schedule: 92 of 271 completed flights, 34%, arrived 15 minutes or more early. The 99 late arrivals split 28 under half an hour, 24 between 30 and 60 minutes, and 47 an hour or more.
- 15+ min early92 flights33.9%
- Within 15 min80 flights29.5%
- 15–29 min late28 flights10.3%
- 30–59 min late24 flights8.9%
- 1–2 hours late33 flights12.2%
- 2+ hours late14 flights5.2%
Scale runs 0% to 100%.
Share of 271 completed flights by arrival against schedule.
13 of 100 late departures made up the time and arrived on time, 13% of them. 12 flights left on time and still arrived late.
The worst days
Worst days for YX 4589
The latest arrival of the period was on 11 March 2026, 4 hours 47 minutes behind schedule; most of its delay minutes were filed as extreme weather. On four of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 11 March 2026 | 4 hours 47 minutes | Extreme weather |
| 4 September 2025 | 3 hours 24 minutes | Late-arriving aircraft |
| 5 August 2026 | 3 hours 20 minutes | Late-arriving aircraft |
| 7 June 2026 | 3 hours 9 minutes | Late-arriving aircraft |
| 13 October 2025 | 2 hours 56 minutes | Late-arriving aircraft |
Delay causes
Why YX 4589 runs late
Late-arriving aircraft accounts for 69% of the 6,691 delay minutes carriers reported here, and the remaining four split what is left.
- 69%Late-arriving aircraft
- 12%National Airspace System
- 12%Carrier
- 7%Extreme weather
- 0%Security
69% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,691 reported delay minutes here, that single category outweighs weather by 9 to one. The split is drawn from 6,691 delay minutes reported on YX 4589.
Cancellations run at 11.73%, against 1.89% 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
17.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
Every one of the 307 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. 307 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: 11.73% of its 307 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- LGA to ORF, every carrier and departure
- ORF to LGA, the return direction
- LaGuardia (LGA) delay statistics
- Republic Airways on-time record
- Every Republic Airways flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.