Carrier route record
YXRDU→LGA
Republic Airways · Raleigh to New York
- Flights
- 2,134
- Period
- July 2025 to June 2026
- Share of route
- 79%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.
Republic on RDU to LGA carries a cancellation problem, not just a delay problem: 6.4% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 2,134 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.6%, so Republic on RDU to LGA runs 8 points behind the country as a whole. Across a thousand flights that is about 83 extra late arrivals.
Key figures
On time
69.3%
Arrivals under 15 minutes late, of 1,995 completed flights
Avg delay
83 min
Across delayed arrivals only, not all flights
Cancelled
6.42%
National rate is 1.81%
Whole route
69.5%
Every carrier on RDU to LGA, 2,713 flights
These figures cover 2,134 flights between July 2025 and June 2026. Beyond the headline rate, 13.3% 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 RDU to LGA
Republic flew 2,134 of the 2,713 flights on RDU to LGA, most of the route. Its 69.3% on time is about level with the route as a whole at 69.5%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from American at 96.9% to Frontier at 61.0%. Three 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 |
|---|---|---|---|---|---|
| American Airlinesthin sample | 34 | 96.9% | 17 min | 5.88% | A− |
| Delta Air Linesthin sample | 344 | 72.7% | 95 min | 4.07% | C− |
| Republic Airways (this page) | 2,134 | 69.3% | 83 min | 6.42% | C− |
| Frontier Airlinesthin sample | 201 | 61.0% | 91 min | 5.97% | D− |
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 37 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–8am281 flights81.3%
- 8am–11am321 flights84.4%
- 11am–2pm385 flights64.7%
- 2pm–5pm592 flights70.1%
- 5pm–8pm511 flights56.7%
- 8pm–5am44 flights47.4%
Scale runs 40% to 90%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 47.4% on time, against 84.4% for the 8am–11am 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 592 flights scheduled in it.
Across the year
Republic on RDU to LGA through the year
May is the best month on the calendar at 79.4% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. July was the busiest month here, with 221 flights.
Across the week, Saturday is the strongest day at 79.5% on time and Friday the weakest at 65.0%. 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 43% of the 51,000 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.
- 43%National Airspace System
- 36%Late-arriving aircraft
- 17%Carrier
- 3%Extreme weather
36% 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 51,000 reported delay minutes here, that single category outweighs weather by 11 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 50,757 reported delay minutes.
43% 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 22,000 minutes out of 51,000, against a national NAS share of 21%.
Cancellations run at 6.42%, against 1.81% nationally. That is about one flight in fifteen 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. 13.3% 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.
At 431 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 8am–11am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 73.3% on time across 2,135 flights, 4 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 4 points of difference.
The sample behind these figures is 2,134 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 RDU to LGA
Put together: the delay figures matter less here than the 6.42% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,995 completed flights over 12 months sit behind that.
Related
Where to go next
- RDU to LGA, every carrier
- Republic on LGA to RDU, the return leg
- Delta Air Lines on RDU to LGA72.7%
- Frontier Airlines on RDU to LGA61.0%
- Republic Airways network-wide record
- Raleigh-Durham International (RDU) delay statistics
- LaGuardia (LGA) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.