Flight number record
YX 4751
Republic Airways · Greer to New York
- Route
- GSP → LGA
- Departs
- 06:00
- Flights
- 316
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 4751, 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 4751 lands a B−, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 316 flights, with a median arrival 6 minutes early.
Set against the rest of the country, YX 4751's record is 5 points better than the US average of 77.3%. That gap is worth roughly 47 fewer late arrivals for every thousand flights.
Key figures
On time
82.0%
Arrivals under 15 minutes late, of 300 completed flights
Avg delay
78 min
Across delayed arrivals only, not all flights
Cancelled
4.43%
National rate is 1.89%
1 hour+ late
6.7%
National rate is 8.3%
These figures cover 316 flights between September 2025 and August 2026. The median arrival is 6 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When YX 4751 flies
YX 4751 flies GSP to LGA without a single fixed slot. Its most common scheduled departure was 06:00, used on 62 of 316 flights, with 06:05 (49 flights) next.
- Departs 06:0062 flights19.6%
- Departs 06:0549 flights15.5%
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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and YX 4751 runs 7 points worse at 82.0%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
YX 4751 next to GSP to LGA
Every carrier on GSP to LGA combined arrived on time 74.9% of the time across 914 flights, so YX 4751 is 7 points ahead of it. Across its whole network Republic Airways managed 78.1%, which this flight beats by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 4751thin sample | 316 | 82.0% | 78 min | 4.43% | B− |
| All Republic Airways on GSP–LGA | 914 | 74.9% | 84 min | 5.91% | C− |
| All carriers on GSP–LGA | 914 | 74.9% | 84 min | 5.91% | C− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 4751 quarter by quarter
YX 4751 did not run the same all year. Its best quarter was Apr–Jun 2026 at 88.2% on time and its weakest Jan–Mar 2026 at 71.6%, a swing of 17 points on roughly 79 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 202589 flights80.2%
- Jan–Mar 202683 flights71.6%
- Apr–Jun 202678 flights88.2%
- Jul–Sep 202640 flights84.2%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, YX 4751 did best on Wednesday at 89.4% on time and worst on Monday at 76.6%. Each day rests on about 45 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late YX 4751 runs when it is late
YX 4751 often beats the schedule: 78 of 300 completed flights, 26%, arrived 15 minutes or more early. The 54 late arrivals split 20 under half an hour, 14 between 30 and 60 minutes, and 20 an hour or more.
- 15+ min early78 flights26.0%
- Within 15 min168 flights56.0%
- 15–29 min late20 flights6.7%
- 30–59 min late14 flights4.7%
- 1–2 hours late9 flights3.0%
- 2+ hours late11 flights3.7%
Scale runs 0% to 100%.
Share of 300 completed flights by arrival against schedule.
6 of 32 late departures made up the time and arrived on time, 19% of them. In the other direction, 28 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 4751
The latest arrival of the period was on 13 August 2026, 8 hours 45 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 13 August 2026 | 8 hours 45 minutes | Late-arriving aircraft |
| 23 June 2026 | 4 hours 35 minutes | Carrier |
| 23 January 2026 | 4 hours 30 minutes | Late-arriving aircraft |
| 17 August 2026 | 3 hours 30 minutes | Carrier |
| 12 November 2025 | 3 hours 14 minutes | Carrier |
Delay causes
Why YX 4751 runs late
Carrier accounts for 49% of the 4,210 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Carrier
- 28%Late-arriving aircraft
- 22%National Airspace System
The largest share of delay minutes, 49%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,082 of the 4,210 delay minutes reported here. The split is drawn from 4,210 delay minutes reported on YX 4751.
Cancellations run at 4.43%, against 1.89% nationally. That is roughly one flight in 25 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
6.7% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 610 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.
Every one of the 316 flights under YX 4751 in the data flew GSP to LGA. 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. 316 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 4751
For a booking, the cancellation rate is the figure to plan around on YX 4751: 4.43% of its 316 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
- GSP to LGA, every carrier and departure
- LGA to GSP, 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
- What a cancellation rate actually tells you (and what it hides)
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.