Flight number record
YX 4677
Republic Airways · Cleveland to New York
- Route
- CLE → LGA
- Departs
- 06:49
- Flights
- 298
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 4677, 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 4677 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 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 298 flights, with a median arrival 11 minutes early.
Set against the rest of the country, YX 4677's record is 12 points better than the US average of 77.3%. That gap is worth roughly 120 fewer late arrivals for every thousand flights.
Key figures
On time
89.3%
Arrivals under 15 minutes late, of 281 completed flights
Avg delay
69 min
Across delayed arrivals only, not all flights
Cancelled
5.03%
National rate is 1.89%
1 hour+ late
3.6%
National rate is 8.3%
These figures cover 298 flights between September 2025 and August 2026. The median arrival is 11 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 4677 flies
YX 4677 flies CLE to LGA without a single fixed slot. Its most common scheduled departure was 06:49, used on 38 of 298 flights, with 06:17 (32 flights) next.
- Departs 06:4938 flights12.8%
- Departs 06:1732 flights10.7%
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 06:49 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and YX 4677 runs level with that at 89.3%. 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 4677 next to CLE to LGA
Every carrier on CLE to LGA combined arrived on time 76.0% of the time across 1,772 flights, so YX 4677 is 13 points ahead of it. Republic flew 1,669 flights on the same city pair under all its flight numbers, including this one, and those ran 76.7% on time. Across its whole network Republic Airways managed 78.1%, which this flight beats by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 4677thin sample | 298 | 89.3% | 69 min | 5.03% | A− |
| All Republic Airways on CLE–LGA | 1,669 | 76.7% | 82 min | 6.29% | B− |
| All carriers on CLE–LGA | 1,772 | 76.0% | 82 min | 6.15% | B− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 4677 quarter by quarter
Quarter by quarter YX 4677 held fairly steady: 89.7% in Oct–Dec 2025, 92.5% in Jan–Mar 2026, 90.1% in Apr–Jun 2026 and 83.0% in Jul–Sep 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202522 flights—
- Oct–Dec 202561 flights89.7%
- Jan–Mar 202673 flights92.5%
- Apr–Jun 202684 flights90.1%
- Jul–Sep 202658 flights83.0%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, YX 4677 ranged from 86.4% on Monday to 95.7% on Friday. With about 43 flights behind each day, a spread of 9 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late YX 4677 runs when it is late
YX 4677 often beats the schedule: 106 of 281 completed flights, 38%, arrived 15 minutes or more early. The 30 late arrivals split 11 under half an hour, 9 between 30 and 60 minutes, and 10 an hour or more.
- 15+ min early106 flights37.7%
- Within 15 min145 flights51.6%
- 15–29 min late11 flights3.9%
- 30–59 min late9 flights3.2%
- 1–2 hours late5 flights1.8%
- 2+ hours late5 flights1.8%
Scale runs 0% to 100%.
Share of 281 completed flights by arrival against schedule.
Only 19 of 281 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for YX 4677
The latest arrival of the period was on 11 June 2026, 4 hours 15 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 11 June 2026 | 4 hours 15 minutes | Carrier |
| 25 February 2026 | 3 hours 48 minutes | National Airspace System |
| 13 April 2026 | 3 hours 20 minutes | Carrier |
| 2 August 2026 | 3 hours 13 minutes | National Airspace System |
| 14 March 2026 | 2 hours 23 minutes | Carrier |
Delay causes
Why YX 4677 runs late
Carrier accounts for 53% of the 2,056 delay minutes carriers reported here, and the remaining four split what is left.
- 53%Carrier
- 41%National Airspace System
- 6%Late-arriving aircraft
41% 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 853 minutes out of 2,056, against a national NAS share of 21%. The split is drawn from 2,056 delay minutes reported on YX 4677.
Cancellations run at 5.03%, against 1.89% 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
Badly late arrivals are rare here: only 3.6% 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 five other city pairs in the data, including MSP to ORD (11), MIA to BOS (3) and SAV to DCA (3), but none flew often enough under YX 4677 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to CLE to LGA only.
One caution: this is a thin sample. 298 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 4677
For a booking, the cancellation rate is the figure to plan around on YX 4677: 5.03% of its 298 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
- CLE to LGA, every carrier and departure
- LGA to CLE, the return direction
- Cleveland Hopkins International (CLE) delay statistics
- LaGuardia (LGA) 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.