Flight number record

YX 5735

Republic Airways · Boston to New York

Route: BOS → LGA
Departs: 08:00
Flights: 285
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s YX 5735, 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 5735 earns an A−. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 10 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 285 flights, with a median arrival 11 minutes early.

Set against the rest of the country, YX 5735's record is 10 points better than the US average of 77.6%. That gap is worth roughly 104 fewer late arrivals for every thousand flights.

On time

88.0%

Arrivals under 15 minutes late, of 275 completed flights

Avg delay

59 min

Across delayed arrivals only, not all flights

Cancelled

3.16%

National rate is 1.81%

1 hour+ late

4.0%

National rate is 8.1%

These figures cover 285 flights between July 2025 and June 2026. The median arrival is 11 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 5735 flies

YX 5735 is scheduled to leave Boston (BOS) at 08:00 local time and reach New York (LGA) at 09:26. That slot held for 285 of the 285 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.

Departs 08:00285 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 08:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and YX 5735 runs 4 points better at 88.0%. 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 5735 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 5735 is 10 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 10 points.

YX 5735 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 5735thin sample	285	88.0%	59 min	3.16%	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 5735 quarter by quarter

YX 5735 did not run the same all year. Its best quarter was Jul–Sep 2025 at 94.0% on time and its weakest Jan–Mar 2026 at 80.6%, a swing of 13 points on roughly 71 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 202589 flights94.0%
Oct–Dec 202561 flights83.3%
Jan–Mar 202671 flights80.6%
Apr–Jun 202664 flights92.2%

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

By weekday, YX 5735 did best on Tuesday at 93.8% on time and worst on Friday at 80.9%. Each day rests on about 41 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why YX 5735 runs late

One category carries most of the weight here. Carrier accounts for 49% of the 1,957 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.

Carrier
49%
National Airspace System
35%
Late-arriving aircraft
10%
Extreme weather
6%

The largest share of delay minutes, 49%, 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 960 of the 1,957 delay minutes reported here. The split is drawn from 1,957 delay minutes reported on YX 5735.

Cancellations run at 3.16%, 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

Badly late arrivals are rare here: only 4.0% 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 CLE (1), CLE to LGA (1) and DCA to BOS (1), but none flew often enough under YX 5735 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. 285 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 5735

For a booking, the cancellation rate is the figure to plan around on YX 5735: 3.16% of its 285 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