Flight number record

YX 4451

Republic Airways · Richmond to New York

Route: RIC → LGA
Departs: 06:00
Flights: 306
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s YX 4451, 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 4451 lands a B−, 6 points better than the national rate of 77.6%. 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 is a workable record, not a spotless one. That rests on 306 flights, with a median arrival 9 minutes early.

Set against the rest of the country, YX 4451's record is 6 points better than the US average of 77.6%. That gap is worth roughly 58 fewer late arrivals for every thousand flights.

On time

83.4%

Arrivals under 15 minutes late, of 296 completed flights

Avg delay

74 min

Across delayed arrivals only, not all flights

Cancelled

3.27%

National rate is 1.81%

1 hour+ late

6.8%

National rate is 8.1%

These figures cover 306 flights between July 2025 and June 2026. The median arrival is 9 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.

Schedule

When YX 4451 flies

YX 4451 flies RIC to LGA without a single fixed slot. Its most common scheduled departure was 06:00, used on 108 of 306 flights, with 06:10 (69 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:00108 flights35.3%
Departs 06:1069 flights22.5%

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 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 4451 runs 6 points worse at 83.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

YX 4451 next to RIC to LGA

Every carrier on RIC to LGA combined arrived on time 72.3% of the time across 2,264 flights, so YX 4451 is 11 points ahead of it. Republic flew 2,172 flights on the same city pair under all its flight numbers, including this one, and those ran 73.2% on time. Across its whole network Republic Airways managed 78.5%, which this flight beats by 5 points.

YX 4451 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 4451thin sample	306	83.4%	74 min	3.27%	B−
All Republic Airways on RIC–LGA	2,172	73.2%	79 min	5.71%	C−
All carriers on RIC–LGA	2,264	72.3%	80 min	5.61%	C−
Republic Airways, whole network	361,482	78.5%	72 min	4.08%	B−

Across the year

YX 4451 quarter by quarter

YX 4451 did not run the same all year. Its best quarter was Apr–Jun 2026 at 89.9% on time and its weakest Oct–Dec 2025 at 75.9%, a swing of 14 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 202579 flights85.9%
Oct–Dec 202583 flights75.9%
Jan–Mar 202673 flights83.3%
Apr–Jun 202671 flights89.9%

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, YX 4451 did best on Wednesday at 90.0% on time and worst on Saturday at 77.5%. Each day rests on about 44 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why YX 4451 runs late

One category carries most of the weight here. Carrier accounts for 44% of the 3,616 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.

Carrier
44%
National Airspace System
32%
Late-arriving aircraft
16%
Extreme weather
8%
Security
0%

The largest share of delay minutes, 44%, 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 1,586 of the 3,616 delay minutes reported here. The split is drawn from 3,616 delay minutes reported on YX 4451.

Cancellations run at 3.27%, against 1.81% nationally. That is about one flight in 30 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

6.8% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says 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 same number turns up on two other city pairs in the data, including MYR to LGA (8) and BNA to ORD (2), but none flew often enough under YX 4451 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to RIC to LGA only.

One caution: this is a thin sample. 306 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 4451

For a booking, the cancellation rate is the figure to plan around on YX 4451: 3.27% of its 306 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.

Where to go next

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.

Key figures