Flight number record

YX 5749

Republic Airways · New York to Washington

Route: LGA → DCA
Departs: 11:30
Flights: 348
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s YX 5749, 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 5749 lands a B−, 2 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 roughly 55 minutes on average. That is a workable record, not a spotless one. That rests on 348 flights, with a median arrival 7 minutes early.

On time

79.8%

Arrivals under 15 minutes late, of 336 completed flights

Avg delay

53 min

Across delayed arrivals only, not all flights

Cancelled

3.45%

National rate is 1.81%

1 hour+ late

3.6%

National rate is 8.1%

These figures cover 348 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 5749 flies

YX 5749 flies LGA to DCA without a single fixed slot. Its most common scheduled departure was 11:30, used on 119 of 348 flights, with 11:00 (95 flights) and 11:10 (73 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 11:30119 flights34.2%
Departs 11:0095 flights27.3%
Departs 11:1073 flights21.0%

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 11:30 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and YX 5749 runs level with that at 79.8%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

YX 5749 next to LGA to DCA

Every carrier on LGA to DCA combined arrived on time 68.3% of the time across 4,830 flights, so YX 5749 is 12 points ahead of it. Republic flew 4,751 flights on the same city pair under all its flight numbers, including this one, and those ran 68.4% on time. Across its whole network Republic Airways managed 78.5%, close to this flight's figure.

YX 5749 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 5749thin sample	348	79.8%	53 min	3.45%	B−
All Republic Airways on LGA–DCA	4,751	68.4%	62 min	5.51%	C−
All carriers on LGA–DCA	4,830	68.3%	62 min	5.45%	C−
Republic Airways, whole network	361,482	78.5%	72 min	4.08%	B−

Across the year

YX 5749 quarter by quarter

YX 5749 did not run the same all year. Its best quarter was Jul–Sep 2025 at 91.3% on time and its weakest Oct–Dec 2025 at 72.7%, a swing of 19 points on roughly 87 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 202592 flights91.3%
Oct–Dec 202579 flights72.7%
Jan–Mar 202686 flights76.3%
Apr–Jun 202691 flights76.9%

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, YX 5749 did best on Saturday at 89.8% on time and worst on Friday at 72.3%. Each day rests on about 50 flights, so a gap of 18 points is worth noticing but could still narrow in another year.

Delay causes

Why YX 5749 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 3,615 reported delay minutes.

National Airspace System
40%
Late-arriving aircraft
35%
Carrier
26%

35% 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 3,615 reported delay minutes here, that single category outweighs weather by 35 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 3,615 delay minutes reported on YX 5749.

Cancellations run at 3.45%, 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 3.6% 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 two other city pairs in the data, including DCA to LGA (31) and CHS to JFK (16), but none flew often enough under YX 5749 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to DCA only.

One caution: this is a thin sample. 348 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 5749

For a booking, the cancellation rate is the figure to plan around on YX 5749: 3.45% of its 348 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