Flight number record

YX 5744

Republic Airways · Boston to New York

Route: BOS → LGA
Departs: 10:00
Flights: 294
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s YX 5744, 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 5744 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 roughly 55 minutes. That rests on 294 flights, with a median arrival 7 minutes early.

Set against the rest of the country, YX 5744's record is 9 points better than the US average of 77.6%. That gap is worth roughly 86 fewer late arrivals for every thousand flights.

On time

86.2%

Arrivals under 15 minutes late, of 283 completed flights

Avg delay

54 min

Across delayed arrivals only, not all flights

Cancelled

3.74%

National rate is 1.81%

1 hour+ late

3.2%

National rate is 8.1%

These figures cover 294 flights between July 2025 and June 2026. The median arrival is 7 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 5744 flies

YX 5744 is scheduled to leave Boston (BOS) at 10:00 local time and reach New York (LGA) at 11:25. That slot held for 294 of the 294 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.

Departs 10:00294 flights100.0%

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 10:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and YX 5744 runs 2 points better at 86.2%. 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 5744 next to BOS to LGA

Every carrier on BOS to LGA combined arrived on time 77.7% of the time across 7,251 flights, so YX 5744 is 9 points ahead of it. Republic flew 6,708 flights on the same city pair under all its flight numbers, including this one, and those ran 76.6% on time. Across its whole network Republic Airways managed 78.5%, which this flight beats by 8 points.

YX 5744 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 5744thin sample	294	86.2%	54 min	3.74%	A−
All Republic Airways on BOS–LGA	6,708	76.6%	75 min	5.81%	B−
All carriers on BOS–LGA	7,251	77.7%	77 min	5.70%	B−
Republic Airways, whole network	361,482	78.5%	72 min	4.08%	B−

Across the year

YX 5744 quarter by quarter

YX 5744 did not run the same all year. Its best quarter was Apr–Jun 2026 at 93.2% on time and its weakest Jan–Mar 2026 at 76.1%, a swing of 17 points on roughly 74 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 202578 flights91.0%
Oct–Dec 202568 flights82.8%
Jan–Mar 202674 flights76.1%
Apr–Jun 202674 flights93.2%

Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, YX 5744 ranged from 79.2% on Tuesday to 90.2% on Sunday. With about 42 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why YX 5744 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 2,089 reported delay minutes.

Late-arriving aircraft
39%
National Airspace System
34%
Carrier
27%

39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 2,089 reported delay minutes here, that single category outweighs weather by 39 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 2,089 delay minutes reported on YX 5744.

Cancellations run at 3.74%, against 1.81% nationally. That is about 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

Badly late arrivals are rare here: only 3.2% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The same number turns up on three other city pairs in the data, including LGA to STL (2), STL to LGA (2) and LGA to RIC (1), but none flew often enough under YX 5744 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BOS to LGA only.

One caution: this is a thin sample. 294 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 5744

For a booking, the cancellation rate is the figure to plan around on YX 5744: 3.74% of its 294 scheduled flights did not operate. A late arrival costs roughly 55 minutes, 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