Flight number record
YX 4554
Republic Airways · New York to Bentonville
- Route
- LGA → XNA
- Departs
- 18:59
- Flights
- 287
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s YX 4554, 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 4554 draws a D−. Roughly 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 287 flights, with a median arrival right on schedule.
The national on-time rate over the same period is 77.6%, so YX 4554 runs 14 points behind the country as a whole. Across a thousand flights that is about 140 extra late arrivals.
Key figures
On time
63.6%
Arrivals under 15 minutes late, of 258 completed flights
Avg delay
77 min
Across delayed arrivals only, not all flights
Cancelled
8.01%
National rate is 1.81%
1 hour+ late
17.1%
National rate is 8.1%
These figures cover 287 flights between July 2025 and June 2026. Beyond the headline rate, 17.1% 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 4554 flies
YX 4554 flies LGA to XNA without a single fixed slot. Its most common scheduled departure was 18:59, used on 43 of 287 flights, with 18:25 (41 flights) and 19:59 (38 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 18:5943 flights15.0%
- Departs 18:2541 flights14.3%
- Departs 19:5938 flights13.2%
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 18:59 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and YX 4554 runs 5 points worse at 63.6%. 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 4554 next to LGA to XNA
Every carrier on LGA to XNA combined arrived on time 74.8% of the time across 875 flights, so YX 4554 is 11 points behind it. Across its whole network Republic Airways managed 78.5%, which this flight trails by 15 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 4554thin sample | 287 | 63.6% | 77 min | 8.01% | D− |
| All Republic Airways on LGA–XNA | 875 | 74.8% | 73 min | 4.69% | C− |
| All carriers on LGA–XNA | 875 | 74.8% | 73 min | 4.69% | C− |
| Republic Airways, whole network | 361,482 | 78.5% | 72 min | 4.08% | B− |
Across the year
YX 4554 quarter by quarter
YX 4554 did not run the same all year. Its best quarter was Jul–Sep 2025 at 76.8% on time and its weakest Oct–Dec 2025 at 51.5%, a swing of 25 points on roughly 72 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 flights76.8%
- Oct–Dec 202574 flights51.5%
- Jan–Mar 202665 flights59.6%
- Apr–Jun 202670 flights65.6%
Scale runs 45% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, YX 4554 did best on Monday at 70.2% on time and worst on Thursday at 55.6%. Each day rests on about 41 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Delay causes
Why YX 4554 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 55% of the 7,251 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.
- 55%Late-arriving aircraft
- 22%National Airspace System
- 16%Carrier
- 7%Extreme weather
55% 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 7,251 reported delay minutes here, that single category outweighs weather by 7 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 7,251 delay minutes reported on YX 4554.
Cancellations run at 8.01%, against 1.81% nationally. That is about 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. 17.1% 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 1,147 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on two other city pairs in the data, including LGA to AVL (12) and LGA to BOS (4), but none flew often enough under YX 4554 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to XNA only.
One caution: this is a thin sample. 287 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 4554
For a booking, the cancellation rate is the figure to plan around on YX 4554: 8.01% of its 287 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.
Related
Where to go next
- LGA to XNA, every carrier and departure
- XNA 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.