Flight number record

YX 5748

Republic Airways · Boston to New York

Route: BOS → LGA
Departs: 13:00
Flights: 274
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s YX 5748, 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 5748 lands a B−, 3 points 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 a little over an hour on average. That is a workable record, not a spotless one. That rests on 274 flights, with a median arrival 7 minutes early.

On time

80.8%

Arrivals under 15 minutes late, of 261 completed flights

Avg delay

79 min

Across delayed arrivals only, not all flights

Cancelled

4.74%

National rate is 1.81%

1 hour+ late

10.0%

National rate is 8.1%

These figures cover 274 flights between July 2025 and June 2026. Beyond the headline rate, 10.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When YX 5748 flies

YX 5748 is scheduled to leave Boston (BOS) at 13:00 local time and reach New York (LGA) at 14:24. That slot held for 274 of the 274 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.

Departs 13:00274 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 13:00 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and YX 5748 runs 2 points better at 80.8%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

YX 5748 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 5748 is 3 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 2 points.

YX 5748 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 5748thin sample	274	80.8%	79 min	4.74%	B−
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 5748 quarter by quarter

Quarter by quarter YX 5748 held fairly steady: 84.1% in Jul–Sep 2025, 75.4% in Oct–Dec 2025, 84.2% in Jan–Mar 2026 and 80.3% in Apr–Jun 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202586 flights84.1%
Oct–Dec 202568 flights75.4%
Jan–Mar 202642 flights84.2%
Apr–Jun 202678 flights80.3%

Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, YX 5748 did best on Wednesday at 90.5% on time and worst on Thursday at 68.3%. Each day rests on about 39 flights, so a gap of 22 points is worth noticing but could still narrow in another year.

Delay causes

Why YX 5748 runs late

One category carries most of the weight here. National Airspace System accounts for 51% of the 3,956 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.

National Airspace System
51%
Carrier
27%
Late-arriving aircraft
21%
Extreme weather
2%

51% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,004 minutes out of 3,956, against a national NAS share of 21%. The split is drawn from 3,956 delay minutes reported on YX 5748.

Cancellations run at 4.74%, 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The same number turns up on two other city pairs in the data, including DTW to CLE (3) and RDU to BOS (2), but none flew often enough under YX 5748 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. 274 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 5748

For a booking, the cancellation rate is the figure to plan around on YX 5748: 4.74% of its 274 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