Flight number record

YX 5770

Republic Airways · New York to Washington

Route: LGA → DCA
Departs: 06:00
Flights: 276
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s YX 5770, 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 5770 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 12 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 276 flights, with a median arrival 12 minutes early.

Set against the rest of the country, YX 5770's record is 12 points better than the US average of 77.6%. That gap is worth roughly 118 fewer late arrivals for every thousand flights.

On time

89.4%

Arrivals under 15 minutes late, of 265 completed flights

Avg delay

80 min

Across delayed arrivals only, not all flights

Cancelled

3.62%

National rate is 1.81%

1 hour+ late

4.5%

National rate is 8.1%

These figures cover 276 flights between July 2025 and June 2026. The median arrival is 12 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 5770 flies

YX 5770 flies LGA to DCA without a single fixed slot. Its most common scheduled departure was 06:00, used on 210 of 276 flights, with 06:05 (38 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:00210 flights76.1%
Departs 06:0538 flights13.8%

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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and YX 5770 runs level with that at 89.4%. 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 5770 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 5770 is 21 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%, which this flight beats by 11 points.

YX 5770 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 5770thin sample	276	89.4%	80 min	3.62%	A−
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 5770 quarter by quarter

YX 5770 did not run the same all year. Its best quarter was Jul–Sep 2025 at 95.2% on time and its weakest Jan–Mar 2026 at 81.2%, a swing of 14 points on roughly 69 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 202566 flights95.2%
Oct–Dec 202558 flights91.2%
Jan–Mar 202674 flights81.2%
Apr–Jun 202678 flights90.9%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, YX 5770 ranged from 83.7% on Friday to 93.3% on Monday. With about 39 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why YX 5770 runs late

One category carries most of the weight here. Carrier accounts for 71% of the 2,229 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
71%
National Airspace System
29%

The largest share of delay minutes, 71%, 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 1,574 of the 2,229 delay minutes reported here. The split is drawn from 2,229 delay minutes reported on YX 5770.

Cancellations run at 3.62%, 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 4.5% 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 CLE to JFK (6), BOS to ORD (1) and ORD to BOS (1), but none flew often enough under YX 5770 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. 276 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 5770

For a booking, the cancellation rate is the figure to plan around on YX 5770: 3.62% of its 276 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