Flight number record

YX 4355

Republic Airways · New York to Oklahoma City

Route: LGA → OKC
Departs: 07:00
Flights: 259
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s YX 4355, 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 4355 lands a B−, about a point better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 259 flights, with a median arrival 9 minutes early.

On time

78.4%

Arrivals under 15 minutes late, of 241 completed flights

Avg delay

60 min

Across delayed arrivals only, not all flights

Cancelled

5.41%

National rate is 1.81%

1 hour+ late

6.2%

National rate is 8.1%

These figures cover 259 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 4355 flies

YX 4355 flies LGA to OKC without a single fixed slot. Its most common scheduled departure was 07:00, used on 35 of 259 flights, with 07:25 (29 flights) and 13:30 (28 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:0035 flights13.5%
Departs 07:2529 flights11.2%
Departs 13:3028 flights10.8%

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 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and YX 4355 runs 11 points worse at 78.4%. 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 4355 next to LGA to OKC

Every carrier on LGA to OKC combined arrived on time 71.8% of the time across 810 flights, so YX 4355 is 7 points ahead of it. Republic flew 639 flights on the same city pair under all its flight numbers, including this one, and those ran 73.3% on time. Across its whole network Republic Airways managed 78.5%, close to this flight's figure.

YX 4355 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 4355thin sample	259	78.4%	60 min	5.41%	B−
All Republic Airways on LGA–OKC	639	73.3%	75 min	7.04%	C−
All carriers on LGA–OKC	810	71.8%	88 min	7.16%	C−
Republic Airways, whole network	361,482	78.5%	72 min	4.08%	B−

Across the year

YX 4355 quarter by quarter

Quarter by quarter YX 4355 held fairly steady: 79.5% in Jul–Sep 2025, 73.8% in Oct–Dec 2025 and 81.2% in Jan–Mar 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202588 flights79.5%
Oct–Dec 202589 flights73.8%
Jan–Mar 202677 flights81.2%
Apr–Jun 20265 flights—

Scale runs 65% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, YX 4355 did best on Tuesday at 83.8% on time and worst on Friday at 71.1%. Each day rests on about 37 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why YX 4355 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 3,133 reported delay minutes.

National Airspace System
32%
Late-arriving aircraft
28%
Carrier
25%
Extreme weather
14%

Extreme weather accounts for 14% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.3 times the usual weather exposure. The split is drawn from 3,133 delay minutes reported on YX 4355.

Cancellations run at 5.41%, against 1.81% nationally. That is about one flight in twenty 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

6.2% 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 about an hour, which a normal layover absorbs.

The 1,341 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 five other city pairs in the data, including OKC to LGA (176), LGA to AVL (44) and AVL to LGA (44), but none flew often enough under YX 4355 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to OKC only.

One caution: this is a thin sample. 259 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 4355

For a booking, the cancellation rate is the figure to plan around on YX 4355: 5.41% of its 259 scheduled flights did not operate. A late arrival costs about 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