Carrier route record
YXCMH→LGA
Republic Airways · Columbus to New York
- Flights
- 2,882
- Period
- July 2025 to June 2026
- Share of route
- 94%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.
Republic on CMH to LGA carries a cancellation problem, not just a delay problem: 4.5% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, about four flights in five arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 2,882 flights, with a median arrival 8 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate Republic on CMH to LGA from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
79.5%
Arrivals under 15 minutes late, of 2,743 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
4.51%
National rate is 1.81%
Whole route
78.9%
Every carrier on CMH to LGA, 3,075 flights
These figures cover 2,882 flights between July 2025 and June 2026. Beyond the headline rate, 8.6% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
Republic against every carrier on CMH to LGA
Republic flew 2,882 of the 3,075 flights on CMH to LGA, most of the route. Its 79.5% on time is about level with the route as a whole at 78.9%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Delta at 100.0% to Spirit at 69.3%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Linesthin sample | 4 | 100.0% | — | 0.00% | A+ |
| Republic Airways (this page) | 2,882 | 79.5% | 71 min | 4.51% | B− |
| Spirit Airlinesthin sample | 189 | 69.3% | 78 min | 4.23% | C− |
Flight by flight
Republic flight numbers on CMH to LGA
Departure window
When Republic runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 21 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am663 flights90.9%
- 8am–11am575 flights82.5%
- 11am–2pm531 flights77.8%
- 2pm–5pm494 flights73.3%
- 5pm–8pm619 flights70.2%
- 8pm–5am—
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 90.9% of the time, against 70.2% for the evening window. That is 21 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 663 flights scheduled in it.
Across the year
Republic on CMH to LGA through the year
September is the best month on the calendar at 88.8% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. October was the busiest month here, with 275 flights.
Across the week, Saturday is the strongest day at 87.9% on time and Sunday the weakest at 73.3%. 15 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Republic runs late on this route
One category carries most of the weight here. National Airspace System accounts for 47% of the 40,000 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.
- 47%National Airspace System
- 26%Late-arriving aircraft
- 25%Carrier
- 2%Extreme weather
- 0%Security
47% 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 19,000 minutes out of 40,000, against a national NAS share of 21%. The split is drawn from 40,127 reported delay minutes.
Cancellations run at 4.51%, against 1.81% nationally. That is roughly 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 stage length
What a delay here costs
8.6% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
At 479 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5am–8am window matters as much as it does.
The return leg runs 77.2% on time across 2,883 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 2,882 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking Republic on CMH to LGA
Put together: the delay figures matter less here than the 4.51% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 2,743 completed flights over 12 months sit behind that.
Related
Where to go next
- CMH to LGA, every carrier
- Republic on LGA to CMH, the return leg
- Spirit Airlines on CMH to LGA69.3%
- Republic Airways network-wide record
- John Glenn Columbus International (CMH) delay statistics
- LaGuardia (LGA) delay statistics
- The US routes with the most cancellations
- The best time of day to fly, according to 7.04 million flight records
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.