Flight number record
YX 4581
Republic Airways · Tulsa to New York
- Route
- TUL → LGA
- Departs
- 07:00
- Flights
- 331
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s YX 4581, 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 4581 earns an A−. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 331 flights, with a median arrival 13 minutes early.
Set against the rest of the country, YX 4581's record is 9 points better than the US average of 77.6%. That gap is worth roughly 91 fewer late arrivals for every thousand flights.
Key figures
On time
86.7%
Arrivals under 15 minutes late, of 316 completed flights
Avg delay
118 min
Across delayed arrivals only, not all flights
Cancelled
3.63%
National rate is 1.81%
1 hour+ late
6.6%
National rate is 8.1%
These figures cover 331 flights between July 2025 and June 2026. The median arrival is 13 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 4581 flies
YX 4581 flies TUL to LGA without a single fixed slot. Its most common scheduled departure was 07:00, used on 91 of 331 flights, with 06:00 (47 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 07:0091 flights27.5%
- Departs 06:0047 flights14.2%
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 4581 runs 3 points worse at 86.7%. 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 4581 next to TUL to LGA
Every carrier on TUL to LGA combined arrived on time 79.5% of the time across 598 flights, so YX 4581 is 7 points ahead of it. Across its whole network Republic Airways managed 78.5%, which this flight beats by 8 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 4581thin sample | 331 | 86.7% | 118 min | 3.63% | A− |
| All Republic Airways on TUL–LGA | 598 | 79.5% | 96 min | 4.68% | B− |
| All carriers on TUL–LGA | 598 | 79.5% | 96 min | 4.68% | B− |
| Republic Airways, whole network | 361,482 | 78.5% | 72 min | 4.08% | B− |
Across the year
YX 4581 quarter by quarter
YX 4581 did not run the same all year. Its best quarter was Jul–Sep 2025 at 95.1% on time and its weakest Oct–Dec 2025 at 80.8%, a swing of 14 points on roughly 83 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 202584 flights95.1%
- Oct–Dec 202583 flights80.8%
- Jan–Mar 202686 flights81.0%
- Apr–Jun 202678 flights89.7%
Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, YX 4581 did best on Friday at 95.9% on time and worst on Sunday at 71.4%. Each day rests on about 47 flights, so a gap of 25 points is worth noticing but could still narrow in another year.
Delay causes
Why YX 4581 runs late
One category carries most of the weight here. Carrier accounts for 43% of the 4,957 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.
- 43%Carrier
- 29%Late-arriving aircraft
- 22%National Airspace System
- 6%Extreme weather
The largest share of delay minutes, 43%, 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 2,112 of the 4,957 delay minutes reported here. The split is drawn from 4,957 delay minutes reported on YX 4581.
Cancellations run at 3.63%, against 1.81% nationally. That is roughly 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
6.6% 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 close to two hours, which a normal layover absorbs.
The 1,231 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.
Every one of the 331 flights under YX 4581 in the data flew TUL 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. 331 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 4581
For a booking, the cancellation rate is the figure to plan around on YX 4581: 3.63% of its 331 scheduled flights did not operate. A late arrival costs close to two 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
- 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.