Flight profile · Republic Airways
YX4791
Columbus (CMH) to New York (LGA) · scheduled 5:43 PM – 7:29 PM
How YX4791 performs
718 operations, July 2023 – August 2026.
Between its first and last recorded date on CMH → LGA, YX4791 averaged about 4 operations a week (718 in 1,158 days, cancelled ones included).
YX4791 arrived on time 71.6% of the time, against 83.6% for all CMH → LGA flights, so this departure is 12.0 percentage points worse than the route as a whole. Against Republic Airways’ own flights on this route it is 12.3 points worse.
Source: US DOT Bureau of Transportation Statistics · 718 operations, July 2023 – August 2026 · If YX4791 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
What stands out
How YX4791 compares to other flight numbers, not just to itself.
This flight runs unusually far behind the carrier's own average on this route, worse than 92% of 12,152 comparable flight numbers.
71.6% on time for this specific departure, against 83.9% for the same carrier's other flights on this route.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026 · The one thing about this specific departure that ranks most extreme against every other published flight number, out of everything FlyerIntel checks — shown only when something clears a real statistical bar, not for every flight.
Where YX4791 is right now
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| YX4791 | 71.6% | 7.38% | -3 min | 12.2% | 718 |
| Republic Airways on CMH → LGA | 83.9% | 3.47% | -9 min | 6.2% | 8,990 |
| All CMH → LGA flights | 83.6% | 3.42% | -9 min | 6.3% | 9,671 |
YX4791 has cancelled 7.38% of its scheduled departures (53 of 718), against 3.42% for all CMH → LGA flights — this specific departure cancels 4.0 percentage points more often than the route as a whole. Different flight numbers on the same route can carry different aircraft, crews and schedules, so this is a fact about YX4791 specifically, not about the route it flies.
12.2% of YX4791’s arrivals were an hour or more late, against 6.3% across CMH → LGA, so the long delays are more common on this number than on the route.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026
Why YX4791 runs late
Where US DOT attributed the delay minutes on this flight.
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for YX4791 on CMH → LGA. Only delays of 15 minutes or more are attributed. What the five causes mean
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – August 2026
Does a late aircraft delay this flight?
How often the plane that flies YX4791 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, YX4791 pushed back an average of 51 minutes late; when it came in on time or early, an average of 2 minutes late.
Matched by tail number to the aircraft’s previous flight into CMH: 622 of 669 departures. Unknown, cancelled or diverted inbounds and gaps over 12 hours are left out.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late | Left 15+ late after a late inbound | Left 15+ late after an on-time inbound |
|---|---|---|---|
| YX4791 | 20% | 67% | 9% |
| Network, same turn | 18% | 92% | 12% |
44 scheduled minutes on the ground leaves little slack, yet this flight has passed a late inbound on less often than the network does at the same turn.
The network row is every flight with a scheduled turn of 30 to 44 minutes. How often YX4791’s aircraft landed 15 or more minutes late is about the same as the network’s and, once the aircraft was late, how often YX4791 left 15 or more minutes late is lower than the network’s.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – August 2026
From pushback to gate
When it leaves CMH late, does that still matter by the time it reaches LGA?
YX4791 pushes back an average of 14.8 minutes late and arrives a further 2.5 minutes behind that. This departure loses ground between the two gates rather than recovering it, so a late pushback here tends to get worse on the way, not better. It spends 19.3 minutes on the taxiways at CMH, 3.4 minutes longer than a typical CMH departure in the same hour.
On arrival at LGA, YX4791 spends 9.5 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is 1.3 minutes longer than a typical LGA arrival (8.2 min).
Taxi-out is gate to wheels up and sits inside the scheduled block; the hourly comparison is 9,305 CMH departures. Taxi-in is landing to gate, set against 467,477 arrivals at LGA. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026
The hour it leaves CMH
YX4791 has one departure time, 5:43 PM, so this is what that hour at CMH is worth.
On-time arrival rate. 9,305 departures from CMH are scheduled in the 5 PM–6 PM hour over the period, against 137,861 across the whole day.
YX4791 is scheduled out of CMH at 5:43 PM, in the 5 PM–6 PM bank. Departures from CMH in that hour arrive on time 71.4% of the time against 82.0% across the airport’s whole day — the slot alone is worth 10.6 points worse before anything about this particular flight is considered.
Both airport figures cover every destination from CMH, so they describe the slot, not this journey; the route comparison is above. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026 · Hours below 120 departures are not scored.
Other routes YX4791 has flown
Carriers reassign flight numbers. YX4791 also served these 10 other city pairs in the period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| LGA→RIC New York to Richmond | July 5, 2026 | 1 | — |
| CAE→LGA Columbia to New York | May 21, 2026 | 1 | — |
| LGA→CAE New York to Columbia | May 21, 2026 | 1 | — |
| ALB→DCA Albany to Washington | April 8, 2026 – May 20, 2026 | 25 | — |
| DCA→ALB Washington to Albany | April 8, 2026 – May 20, 2026 | 25 | — |
| LGA→CMH New York to Columbus | December 18, 2025 | 1 | — |
| ATL→ORD Atlanta to Chicago | March 8–29, 2025 | 4 | — |
| ILM→LGA Wilmington to New York | November 27, 2023 – March 31, 2024 | 23 | — |
| CLE→ORD Cleveland to Chicago | January 8, 2024 – February 12, 2024 | 34 | — |
| ORD→CLE Chicago to Cleveland | January 8, 2024 – February 12, 2024 | 34 | — |
The figures above describe only CMH → LGA, the route YX4791 flies now.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
75 min late
against a median of 3 min early
YX4791 has an average that understates its risk: a typical arrival is 3 min early, but the worst tenth are 78 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 718 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – August 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| YX5700 | Republic Airways | 93.7% | 12 min early | 649 |
| YX4799 | Republic Airways | 91.9% | 9 min early | 681 |
| YX5691 | Republic Airways | 88.0% | 11 min early | 814 |
| YX4791 this flight | Republic Airways | 71.6% | 3 min early | 718 |
Among all 4 departures on this route with at least 600 operations, YX4791 has the lowest on-time rate, 22.1 points behind the best. Every departure here has at least 600 operations; the other rows are the most punctual on the route, not all of them.
Data and methodology
Calculated by FlyerIntel from 718 records of YX4791 operating CMH → LGA, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule; cancelled and diverted flights are reported separately, not in the on-time rate.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
Analysis last recomputed