Carrier route record
YXLGA→ATL
Republic Airways · New York to Atlanta
- Flights
- 1,906
- Period
- September 2025 to August 2026
- Share of route
- 22%
- Carriers
- 6
Historical statistics for September 2025 to August 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: 5.3% of scheduled flights never operate, against 1.9% 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 1,906 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 4,935 at 79.1% on time.
Delta Air Lines is the most reliable of the three carriers covered here at 79.1% on time across 4,935 flights.
Key figures
On time
76.4%
Arrivals under 15 minutes late, of 1,797 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
5.25%
National rate is 1.89%
Whole route
75.5%
Every carrier on LGA to ATL, 8,500 flights
These figures cover 1,906 flights between September 2025 and August 2026. Beyond the headline rate, 9.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Republic against every carrier on LGA to ATL
Republic flew 1,906 of the 8,500 flights on LGA to ATL, about 22% of it. Its 76.4% on time is about level with the route as a whole at 75.5%. Ranked by on-time rate it is number four of six carriers on the route, where the range runs from American at 100.0% to Frontier at 54.0%. Two 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 79.1% of the time; Frontier Airlines manages 54.0%. Sample sizes sit next to every figure, because a two-point gap across 949 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlinesthin sample | 6 | 100.0% | — | 0.00% | A+ |
| Spirit Airlinesthin sample | 4 | 100.0% | — | 0.00% | A+ |
| Delta Air Lines | 4,935 | 79.1% | 73 min | 3.55% | B− |
| Republic Airways (this page) | 1,906 | 76.4% | 66 min | 5.25% | B− |
| Southwest Airlines | 700 | 75.1% | 74 min | 3.29% | B− |
| Frontier Airlines | 949 | 54.0% | 111 min | 7.69% | F− |
Frontier Airlines cancels 7.7% 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.
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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 26 points, against 25 points between the best and worst carrier.
- 5am–8am309 flights90.5%
- 8am–11am317 flights81.6%
- 11am–2pm537 flights78.5%
- 2pm–5pm404 flights67.4%
- 5pm–8pm331 flights64.7%
- 8pm–5am8 flights—
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 64.7% on time, against 90.5% 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 11am–2pm window is the busiest, with 537 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. August was the busiest month here, with 173 flights.
Across the week, Tuesday is the strongest day at 80.7% on time and Sunday the weakest at 70.8%, a spread of 10 points.
Arrival by arrival
How late Republic on LGA to ATL runs when it is late
Republic on LGA to ATL often beats the schedule: 678 of 1,797 completed flights, 38%, arrived 15 minutes or more early. The 424 late arrivals split 146 under half an hour, 117 between 30 and 60 minutes, and 161 an hour or more.
- 15+ min early678 flights37.7%
- Within 15 min695 flights38.7%
- 15–29 min late146 flights8.1%
- 30–59 min late117 flights6.5%
- 1–2 hours late101 flights5.6%
- 2+ hours late60 flights3.3%
Scale runs 0% to 100%.
Share of 1,797 completed flights by arrival against schedule.
60 of 346 late departures made up the time and arrived on time, 17% of them. In the other direction, 138 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at ATL.
The worst days
Worst days for Republic on LGA to ATL
The latest arrival of the period was on 10 July 2026, 8 hours 57 minutes behind schedule; most of its delay minutes were filed as extreme weather. The five worst days are spread across July, September, August and December, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 10 July 2026 | 8 hours 57 minutes | Extreme weather |
| 9 July 2026 | 5 hours 31 minutes | Carrier |
| 4 September 2025 | 5 hours 28 minutes | Late-arriving aircraft |
| 2 August 2026 | 5 hours 25 minutes | Extreme weather |
| 1 December 2025 | 4 hours 48 minutes | Late-arriving aircraft |
Delay causes
Why Republic runs late on this route
Late-arriving aircraft accounts for 47% of the 28,000 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Late-arriving aircraft
- 31%National Airspace System
- 17%Carrier
- 4%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. Across 28,000 reported delay minutes here, that single category outweighs weather by 11 to one. The split is drawn from 28,130 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 90.5% on time here.
Cancellations run at 5.25%, against 1.89% 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
9.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection 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.
The return leg runs 75.5% on time across 1,905 flights, within about 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 1,906 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 5.25% 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. 1,797 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 ATL79.1%
- Southwest Airlines on LGA to ATL75.1%
- Frontier Airlines on LGA to ATL54.0%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.