Carrier route record
YXLGA→ATL
Republic Airways · New York to Atlanta
- Flights
- 1,576
- 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 LGA to ATL carries a cancellation problem, not just a delay problem: 4.7% 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 1,576 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 4,933 at 79.9% on time.
Delta Air Lines is the most reliable of the three carriers covered here at 79.9% on time across 4,933 flights.
Key figures
On time
77.8%
Arrivals under 15 minutes late, of 1,497 completed flights
Avg delay
64 min
Across delayed arrivals only, not all flights
Cancelled
4.70%
National rate is 1.81%
Whole route
76.6%
Every carrier on LGA to ATL, 8,343 flights
These figures cover 1,576 flights between July 2025 and June 2026. Beyond the headline rate, 8.4% 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 LGA to ATL
Republic flew 1,576 of the 8,343 flights on LGA to ATL, about 19% of it. Its 77.8% on time is about level with the route as a whole at 76.6%. Ranked by on-time rate it is number three of five carriers on the route, where the range runs from Spirit at 80.0% to Frontier at 58.4%. 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 79.9% of the time; Frontier Airlines manages 58.4%. Sample sizes sit next to every figure, because a two-point gap across 889 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Spirit Airlinesthin sample | 10 | 80.0% | 101 min | 0.00% | B+ |
| Delta Air Lines | 4,933 | 79.9% | 73 min | 2.98% | B |
| Republic Airways (this page) | 1,576 | 77.8% | 64 min | 4.70% | B− |
| Southwest Airlines | 935 | 73.6% | 78 min | 3.64% | C− |
| Frontier Airlines | 889 | 58.4% | 106 min | 5.74% | D− |
Frontier Airlines cancels 5.7% 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 24 points, against 22 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am252 flights90.1%
- 8am–11am262 flights81.7%
- 11am–2pm475 flights78.2%
- 2pm–5pm324 flights72.9%
- 5pm–8pm260 flights66.5%
- 8pm–5am3 flights—
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 90.1% of the time, against 66.5% for the evening window. That is 24 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 11am–2pm window is the busiest, with 475 flights scheduled in it.
Across the year
Republic on LGA to ATL through the year
September is the best month on the calendar at 88.7% 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 170 flights.
Across the week, Tuesday is the strongest day at 82.0% on time and Sunday the weakest at 71.4%. 11 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 52% of the 21,000 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.
- 52%Late-arriving aircraft
- 30%National Airspace System
- 17%Carrier
- 2%Extreme weather
- 0%Security
52% 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 21,000 reported delay minutes here, that single category outweighs weather by 25 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 21,164 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 90.1% on time here.
Cancellations run at 4.70%, 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
8.4% 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 about an hour, which a normal layover absorbs.
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 77.1% on time across 1,575 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 1,576 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 LGA to ATL
Put together: the delay figures matter less here than the 4.70% cancellation rate. A late arrival costs you about 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. 1,497 completed flights over 12 months sit behind that.
Related
Where to go next
- LGA to ATL, every carrier
- Republic on ATL to LGA, the return leg
- Delta Air Lines on LGA to ATL79.9%
- Southwest Airlines on LGA to ATL73.6%
- Frontier Airlines on LGA to ATL58.4%
- Republic Airways network-wide record
- LaGuardia (LGA) delay statistics
- Hartsfield-Jackson Atlanta International (ATL) 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.