Flight number record

YX 5744

Republic Airways · Boston to New York

Route: BOS → LGA
Departs: 10:00
Flights: 294
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 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 77.3%. When something does go wrong the average delay runs about an hour. That rests on 294 flights, with a median arrival 6 minutes early.

Set against the rest of the country, YX 5744's record is 9 points better than the US average of 77.3%. That gap is worth roughly 85 fewer late arrivals for every thousand flights.

On time

85.8%

Arrivals under 15 minutes late, of 282 completed flights

Avg delay

57 min

Across delayed arrivals only, not all flights

Cancelled

4.08%

National rate is 1.89%

1 hour+ late

3.9%

National rate is 8.3%

These figures cover 294 flights between September 2025 and August 2026. The median arrival is 6 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.

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Schedule

When YX 5744 flies

YX 5744 is scheduled to leave Boston (BOS) at 10:00 local time and reach New York (LGA) at 11:15. 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%.

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 83.9%, and YX 5744 runs level with that at 85.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

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Against the route

YX 5744 next to BOS to LGA

Every carrier on BOS to LGA combined arrived on time 76.2% of the time across 7,442 flights, so YX 5744 is 10 points ahead of it. Republic flew 6,971 flights on the same city pair under all its flight numbers, including this one, and those ran 75.2% on time. Across its whole network Republic Airways managed 78.1%, 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	85.8%	57 min	4.08%	A−
All Republic Airways on BOS–LGA	6,971	75.2%	77 min	6.50%	B−
All carriers on BOS–LGA	7,442	76.2%	78 min	6.40%	B−
Republic Airways, whole network	364,452	78.1%	74 min	4.55%	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 202526 flights—
Oct–Dec 202568 flights82.8%
Jan–Mar 202674 flights76.1%
Apr–Jun 202674 flights93.2%
Jul–Sep 202652 flights84.3%

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

By weekday, YX 5744 ranged from 81.2% on Thursday to 91.7% on Friday. 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.

Arrival by arrival

How late YX 5744 runs when it is late

The 40 late arrivals split 16 under half an hour, 13 between 30 and 60 minutes, and 11 an hour or more.

15+ min early63 flights22.3%
Within 15 min179 flights63.5%
15–29 min late16 flights5.7%
30–59 min late13 flights4.6%
1–2 hours late9 flights3.2%
2+ hours late2 flights0.7%

Scale runs 0% to 100%.

Share of 282 completed flights by arrival against schedule.

9 of 37 late departures made up the time and arrived on time, 24% of them. 12 flights left on time and still arrived late.

The worst days

Worst days for YX 5744

The latest arrival of the period was on 10 November 2025, 7 hours 3 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as national airspace system delay.

The latest arrivals of YX 5744 in the period
Date	Arrived late by	Largest filed cause
10 November 2025	7 hours 3 minutes	Late-arriving aircraft
25 February 2026	2 hours 9 minutes	Late-arriving aircraft
26 March 2026	1 hour 57 minutes	National Airspace System
19 January 2026	1 hour 45 minutes	National Airspace System
27 August 2026	1 hour 43 minutes	National Airspace System

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 2,283 reported delay minutes.

National Airspace System
41%
Late-arriving aircraft
35%
Carrier
24%

35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,283 reported delay minutes here, that single category outweighs weather by 35 to one. The split is drawn from 2,283 delay minutes reported on YX 5744.

Cancellations run at 4.08%, against 1.89% 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 3.9% land an hour or more behind schedule, against 8.3% 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 STL to LGA (2), LGA to STL (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: 4.08% of its 294 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures