Flight number record
YX 4688
Republic Airways · Roanoke to New York
- Route
- ROA → LGA
- Departs
- 17:03
- Flights
- 263
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 56.6% of flights arrive inside the 15-minute window, 21 points worse than the national rate of 77.3%. Late arrivals average an hour and a half. Treat any tight connection here as a coin flip. That rests on 263 flights, with a median arrival 5 minutes late.
The national on-time rate over the same period is 77.3%, so YX 4688 runs 21 points behind the country as a whole. Across a thousand flights that is about 207 extra late arrivals.
Key figures
On time
56.6%
Arrivals under 15 minutes late, of 242 completed flights
Avg delay
82 min
Across delayed arrivals only, not all flights
Cancelled
7.22%
National rate is 1.89%
1 hour+ late
24.0%
National rate is 8.3%
These figures cover 263 flights between September 2025 and August 2026. Beyond the headline rate, 24.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
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 263 flights, with 18:03 (32 flights) and 16:40 (27 flights) next.
- Departs 17:0338 flights14.4%
- Departs 18:0332 flights12.2%
- Departs 16:4027 flights10.3%
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 17:03 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and YX 4688 runs 11 points worse at 56.6%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
YX 4688 next to ROA to LGA
Every carrier on ROA to LGA combined arrived on time 55.7% of the time across 348 flights, so YX 4688 is about level with it. Across its whole network Republic Airways managed 78.1%, which this flight trails by 21 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 4688thin sample | 263 | 56.6% | 82 min | 7.22% | D− |
| All Republic Airways on ROA–LGAthin sample | 348 | 55.7% | 83 min | 7.76% | D− |
| All carriers on ROA–LGAthin sample | 348 | 55.7% | 83 min | 7.76% | D− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | 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 88 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 202530 flights—
- Oct–Dec 202586 flights48.8%
- Jan–Mar 202677 flights64.8%
- Apr–Jun 202643 flights57.1%
- Jul–Sep 202627 flights—
Scale runs 40% to 70%. Rows with fewer than 30 flights show a dash.
By weekday, YX 4688 did best on Friday at 60.5% on time and worst on Thursday at 44.1%. Each day rests on about 38 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late YX 4688 runs when it is late
When YX 4688 is late it tends to be very late: 58 of its 105 late arrivals were an hour or more behind, and 23 were two hours or more.
- 15+ min early54 flights22.3%
- Within 15 min83 flights34.3%
- 15–29 min late23 flights9.5%
- 30–59 min late24 flights9.9%
- 1–2 hours late35 flights14.5%
- 2+ hours late23 flights9.5%
Scale runs 0% to 100%.
Share of 242 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 94 departures that left 15 minutes late or more, only 6 made it up before arrival. In the other direction, 17 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at LGA.
The worst days
Worst days for YX 4688
The latest arrival of the period was on 10 November 2025, 5 hours 1 minute behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On four of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 10 November 2025 | 5 hours 1 minute | Carrier |
| 17 September 2025 | 4 hours 11 minutes | Late-arriving aircraft |
| 13 October 2025 | 4 hours 7 minutes | Late-arriving aircraft |
| 19 November 2025 | 3 hours 41 minutes | Late-arriving aircraft |
| 14 December 2025 | 3 hours 30 minutes | Late-arriving aircraft |
Delay causes
Why YX 4688 runs late
Late-arriving aircraft accounts for 55% of the 8,634 delay minutes carriers reported here, and the remaining four split what is left.
- 55%Late-arriving aircraft
- 35%National Airspace System
- 8%Carrier
- 1%Extreme weather
55% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,634 reported delay minutes here, that single category outweighs weather by 40 to one. The split is drawn from 8,634 delay minutes reported on YX 4688.
Cancellations run at 7.22%, against 1.89% nationally. That is about 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
24.0% 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.
The same number turns up on four other city pairs in the data, including LGA to ROA (225), MSN to ORD (42) and RIC to ORD (33), but none flew often enough under YX 4688 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ROA to LGA only.
One caution: this is a thin sample. 263 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 4688
For a booking, the cancellation rate is the figure to plan around on YX 4688: 7.22% of its 263 scheduled flights did not operate. A late arrival costs an hour and a half, 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.