Flight number record
YX 4799
Republic Airways · Columbus to New York
- Route
- CMH → LGA
- Departs
- 06:00
- Flights
- 312
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 4799, 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 4799 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 about an hour. That rests on 312 flights, with a median arrival 9 minutes early.
Set against the rest of the country, YX 4799's record is 12 points better than the US average of 77.3%. That gap is worth roughly 115 fewer late arrivals for every thousand flights.
Key figures
On time
88.8%
Arrivals under 15 minutes late, of 303 completed flights
Avg delay
67 min
Across delayed arrivals only, not all flights
Cancelled
2.56%
National rate is 1.89%
1 hour+ late
3.3%
National rate is 8.3%
These figures cover 312 flights between September 2025 and August 2026. The median arrival is 9 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 4799 flies
YX 4799 flies CMH to LGA without a single fixed slot. Its most common scheduled departure was 06:00, used on 105 of 312 flights, with 07:00 (35 flights) and 06:38 (35 flights) next.
- Departs 06:00105 flights33.7%
- Departs 07:0035 flights11.2%
- Departs 06:3835 flights11.2%
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 4799 runs level with that at 88.8%. 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 4799 next to CMH to LGA
Every carrier on CMH to LGA combined arrived on time 79.2% of the time across 3,035 flights, so YX 4799 is 10 points ahead of it. Republic flew 2,904 flights on the same city pair under all its flight numbers, including this one, and those ran 79.6% 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 4799thin sample | 312 | 88.8% | 67 min | 2.56% | A |
| All Republic Airways on CMH–LGA | 2,904 | 79.6% | 73 min | 4.96% | B− |
| All carriers on CMH–LGA | 3,035 | 79.2% | 73 min | 4.81% | B− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 4799 quarter by quarter
Quarter by quarter YX 4799 held fairly steady: 88.0% in Oct–Dec 2025, 83.3% in Jan–Mar 2026, 89.2% in Apr–Jun 2026 and 92.2% in Jul–Sep 2026. A spread of 9 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 202576 flights88.0%
- Jan–Mar 202677 flights83.3%
- Apr–Jun 202684 flights89.2%
- Jul–Sep 202653 flights92.2%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, YX 4799 ranged from 84.0% on Monday to 93.5% on Saturday. With about 45 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 4799 runs when it is late
YX 4799 often beats the schedule: 85 of 303 completed flights, 28%, arrived 15 minutes or more early. The 34 late arrivals split 16 under half an hour, 8 between 30 and 60 minutes, and 10 an hour or more.
- 15+ min early85 flights28.1%
- Within 15 min184 flights60.7%
- 15–29 min late16 flights5.3%
- 30–59 min late8 flights2.6%
- 1–2 hours late5 flights1.7%
- 2+ hours late5 flights1.7%
Scale runs 0% to 100%.
Share of 303 completed flights by arrival against schedule.
6 of 25 late departures made up the time and arrived on time, 24% of them. 15 flights left on time and still arrived late.
The worst days
Worst days for YX 4799
The latest arrival of the period was on 15 May 2026, 5 hours 51 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On three of the five worst days the largest share was filed as national airspace system delay.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 15 May 2026 | 5 hours 51 minutes | Carrier |
| 15 April 2026 | 4 hours 26 minutes | National Airspace System |
| 28 July 2026 | 4 hours 1 minute | National Airspace System |
| 25 February 2026 | 3 hours 11 minutes | National Airspace System |
| 20 April 2026 | 2 hours 19 minutes | Carrier |
Delay causes
Why YX 4799 runs late
National Airspace System accounts for 50% of the 2,271 delay minutes carriers reported here, and the remaining four split what is left.
- 50%National Airspace System
- 47%Carrier
- 2%Extreme weather
- 1%Security
The largest share of delay minutes, 47%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,066 of the 2,271 delay minutes reported here. The split is drawn from 2,271 delay minutes reported on YX 4799.
Cancellations run at 2.56%, against 1.89% nationally. That is about one flight in 40 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 3.3% 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.
Every one of the 312 flights under YX 4799 in the data flew CMH to LGA. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 312 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 4799
For a booking, the cancellation rate is the figure to plan around on YX 4799: 2.56% of its 312 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- CMH to LGA, every carrier and departure
- LGA to CMH, the return direction
- Republic Airways 5691 on the same route84.3%
- Republic Airways 5700 on the same route93.6%
- John Glenn Columbus International (CMH) 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.