Carrier route record
YXATL→LGA
Republic Airways · Atlanta to New York
- Flights
- 1,575
- Period
- July 2025 to June 2026
- Share of route
- 19%
- Carriers
- 5
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.
Republic on ATL to LGA carries a cancellation problem, not just a delay problem: 5.1% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, close to three flights in four 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 1,575 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 4,936 at 76.7% on time.
The US average over the same twelve months is 77.6%, so there is little to separate Republic on ATL 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
77.1%
Arrivals under 15 minutes late, of 1,491 completed flights
Avg delay
84 min
Across delayed arrivals only, not all flights
Cancelled
5.14%
National rate is 1.81%
Whole route
73.4%
Every carrier on ATL to LGA, 8,344 flights
These figures cover 1,575 flights between July 2025 and June 2026. Beyond the headline rate, 10.1% 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 ATL to LGA
Republic flew 1,575 of the 8,344 flights on ATL to LGA, about 19% of it. Its 77.1% on time is 4 points better than the route as a whole, which runs 73.4%. Ranked by on-time rate it is number two of five carriers on the route, where the range runs from Spirit at 80.0% to Frontier at 51.8%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 76.7% of the time; Frontier Airlines manages 51.8%. Sample sizes sit next to every figure, because a two-point gap across 888 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Spirit Airlinesthin sample | 10 | 80.0% | 87 min | 0.00% | B+ |
| Republic Airways (this page) | 1,575 | 77.1% | 84 min | 5.14% | B− |
| Delta Air Lines | 4,936 | 76.7% | 66 min | 2.96% | B |
| Southwest Airlines | 935 | 69.6% | 68 min | 3.10% | C− |
| Frontier Airlines | 888 | 51.8% | 100 min | 5.07% | F− |
Frontier Airlines cancels 5.1% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
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 27 points, against 25 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am235 flights90.7%
- 8am–11am285 flights87.3%
- 11am–2pm276 flights79.3%
- 2pm–5pm475 flights70.9%
- 5pm–8pm304 flights63.7%
- 8pm–5am—
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 63.7% on time, against 90.7% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 475 flights scheduled in it.
Across the year
Republic on ATL to LGA through the year
Delays peak in October, when the on-time rate falls to 67.1%. January is the strongest month at 87.9%. Moving a flexible trip across that boundary buys 21 points. October was the busiest month here, with 170 flights.
Across the week, Saturday is the strongest day at 82.4% on time and Sunday the weakest at 69.4%. 13 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. Late-arriving aircraft accounts for 47% of the 29,000 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%Late-arriving aircraft
- 33%National Airspace System
- 12%Carrier
- 8%Extreme weather
- 0%Security
47% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 29,000 reported delay minutes here, that single category outweighs weather by 6 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 28,683 reported delay minutes.
33% 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 9,425 minutes out of 29,000, against a national NAS share of 21%.
Cancellations run at 5.14%, against 1.81% 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 stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.1% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 762 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg runs 77.8% on time across 1,576 flights, within half a point 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 1,575 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 ATL to LGA
Put together: the delay figures matter less here than the 5.14% cancellation rate. A late arrival costs you an hour and a half; 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. 1,491 completed flights over 12 months sit behind that.
Related
Where to go next
- ATL to LGA, every carrier
- Republic on LGA to ATL, the return leg
- Delta Air Lines on ATL to LGA76.7%
- Southwest Airlines on ATL to LGA69.6%
- Frontier Airlines on ATL to LGA51.8%
- Republic Airways network-wide record
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- LaGuardia (LGA) delay statistics
- The US routes with the most cancellations
- Same route, different airline: where the carrier you pick matters most
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.