Flight number record
YX 4688
Republic Airways · Roanoke to New York
- Route
- ROA → LGA
- Departs
- 17:03
- Flights
- 292
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s YX 4688, 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 4688 earns a D−, which is as low as this site's scale goes for a reason. Only 56.8% of flights arrive inside the 15-minute window, 21 points worse than the national rate of 77.6%. Late arrivals average about 2.4 hours. Treat any tight connection here as a coin flip. That rests on 292 flights, with a median arrival 3 minutes late.
The national on-time rate over the same period is 77.6%, so YX 4688 runs 21 points behind the country as a whole. Across a thousand flights that is about 208 extra late arrivals.
Key figures
On time
56.8%
Arrivals under 15 minutes late, of 273 completed flights
Avg delay
142 min
Across delayed arrivals only, not all flights
Cancelled
5.82%
National rate is 1.81%
1 hour+ late
27.1%
National rate is 8.1%
These figures cover 292 flights between July 2025 and June 2026. Beyond the headline rate, 27.1% 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 4688 flies
YX 4688 flies ROA to LGA without a single fixed slot. Its most common scheduled departure was 17:03, used on 38 of 292 flights, with 18:03 (32 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 17:0338 flights13.0%
- Departs 18:0332 flights11.0%
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 17:03 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and YX 4688 runs 11 points worse at 56.8%. 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 4688 next to ROA to LGA
Every carrier on ROA to LGA combined arrived on time 56.9% of the time across 342 flights, so YX 4688 is about level with it. Across its whole network Republic Airways managed 78.5%, which this flight trails by 22 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 4688thin sample | 292 | 56.8% | 142 min | 5.82% | D− |
| All Republic Airways on ROA–LGAthin sample | 342 | 56.9% | 133 min | 5.85% | D− |
| All carriers on ROA–LGAthin sample | 342 | 56.9% | 133 min | 5.85% | D− |
| Republic Airways, whole network | 361,482 | 78.5% | 72 min | 4.08% | B− |
Across the year
YX 4688 quarter by quarter
YX 4688 did not run the same all year. Its best quarter was Jan–Mar 2026 at 64.8% on time and its weakest Oct–Dec 2025 at 48.8%, a swing of 16 points on roughly 73 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 202586 flights57.5%
- Oct–Dec 202586 flights48.8%
- Jan–Mar 202677 flights64.8%
- Apr–Jun 202643 flights57.1%
Scale runs 40% to 70%. Rows with fewer than 30 flights show a dash.
By weekday, YX 4688 did best on Monday at 61.9% on time and worst on Thursday at 46.3%. Each day rests on about 42 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Delay causes
Why YX 4688 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 17,000 reported delay minutes.
- 40%Carrier
- 33%Late-arriving aircraft
- 25%National Airspace System
- 2%Extreme weather
The largest share of delay minutes, 40%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 6,609 of the 17,000 delay minutes reported here. The split is drawn from 16,711 delay minutes reported on YX 4688.
Cancellations run at 5.82%, against 1.81% nationally. That is roughly one flight in fifteen 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. 27.1% 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.
YX 4688 is not only a ROA to LGA flight. It also flew LGA to ROA (254 flights, 68.0% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.
One caution: this is a thin sample. 292 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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| LGA to ROAthin sample | 254 | 68.0% | 80 min | 4.72% | C− |
What to do with this
Booking YX 4688
For a booking, the cancellation rate is the figure to plan around on YX 4688: 5.82% of its 292 scheduled flights did not operate. A late arrival costs about 2.4 hours, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- 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.