Flight number record
YX 5770
Republic Airways · New York to Washington
- Route
- LGA → DCA
- Departs
- 06:00
- Flights
- 285
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 10 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 285 flights, with a median arrival 12 minutes early.
Set against the rest of the country, YX 5770's record is 10 points better than the US average of 77.3%. That gap is worth roughly 103 fewer late arrivals for every thousand flights.
Key figures
On time
87.6%
Arrivals under 15 minutes late, of 274 completed flights
Avg delay
72 min
Across delayed arrivals only, not all flights
Cancelled
3.51%
National rate is 1.89%
1 hour+ late
4.4%
National rate is 8.3%
These figures cover 285 flights between September 2025 and August 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.
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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 167 of 285 flights, with 06:05 (81 flights) next.
- Departs 06:00167 flights58.6%
- Departs 06:0581 flights28.4%
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 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 87.6%. 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 5770 next to LGA to DCA
Every carrier on LGA to DCA combined arrived on time 65.5% of the time across 4,840 flights, so YX 5770 is 22 points ahead of it. Republic flew 4,699 flights on the same city pair under all its flight numbers, including this one, and those ran 65.7% on time. Across its whole network Republic Airways managed 78.1%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 5770thin sample | 285 | 87.6% | 72 min | 3.51% | A− |
| All Republic Airways on LGA–DCA | 4,699 | 65.7% | 61 min | 5.83% | C− |
| All carriers on LGA–DCA | 4,840 | 65.5% | 62 min | 5.76% | C− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 5770 quarter by quarter
YX 5770 did not run the same all year. Its best quarter was Oct–Dec 2025 at 91.2% on time and its weakest Jan–Mar 2026 at 81.2%, a swing of 10 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 202522 flights—
- Oct–Dec 202558 flights91.2%
- Jan–Mar 202674 flights81.2%
- Apr–Jun 202678 flights90.9%
- Jul–Sep 202653 flights85.7%
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, YX 5770 ranged from 83.7% on Friday to 94.1% on Saturday. With about 41 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.
Arrival by arrival
How late YX 5770 runs when it is late
YX 5770 often beats the schedule: 115 of 274 completed flights, 42%, arrived 15 minutes or more early. The 34 late arrivals split 8 under half an hour, 14 between 30 and 60 minutes, and 12 an hour or more.
- 15+ min early115 flights42.0%
- Within 15 min125 flights45.6%
- 15–29 min late8 flights2.9%
- 30–59 min late14 flights5.1%
- 1–2 hours late4 flights1.5%
- 2+ hours late8 flights2.9%
Scale runs 0% to 100%.
Share of 274 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 23 departures that left 15 minutes late or more, only 1 made it up before arrival. 12 flights left on time and still arrived late.
The worst days
Worst days for YX 5770
The latest arrival of the period was on 16 March 2026, 4 hours 46 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 March 2026 | 4 hours 46 minutes | Carrier |
| 12 May 2026 | 3 hours 9 minutes | Carrier |
| 13 March 2026 | 2 hours 47 minutes | Carrier |
| 27 January 2026 | 2 hours 39 minutes | Carrier |
| 21 November 2025 | 2 hours 23 minutes | Carrier |
Delay causes
Why YX 5770 runs late
Carrier accounts for 72% of the 2,451 delay minutes carriers reported here, and the remaining four split what is left.
- 72%Carrier
- 28%National Airspace System
The largest share of delay minutes, 72%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,769 of the 2,451 delay minutes reported here. The split is drawn from 2,451 delay minutes reported on YX 5770.
Cancellations run at 3.51%, against 1.89% 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 4.4% 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 two other city pairs in the data, including ORD to BOS (1) and BOS to ORD (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. 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 5770
For a booking, the cancellation rate is the figure to plan around on YX 5770: 3.51% of its 285 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.
Related
Where to go next
- LGA to DCA, every carrier and departure
- DCA to LGA, the return direction
- Republic Airways 5709 on the same route59.5%
- Republic Airways 5749 on the same route73.8%
- Republic Airways 5717 on the same route60.1%
- Republic Airways 5742 on the same route82.8%
- LaGuardia (LGA) delay statistics
- Ronald Reagan Washington National (DCA) delay statistics
- Republic Airways on-time record
- Every Republic Airways flight number with a record
- The most and least reliable flight numbers in the US
- What a cancellation rate actually tells you (and what it hides)
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 ; recomputed monthly. How this data is collected.