Carrier route record
YXLGA→RDU
Republic Airways · New York to Raleigh
- Flights
- 2,135
- 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 LGA to RDU carries a cancellation problem, not just a delay problem: 5.8% 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 C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 2,135 flights, with a median arrival 3 minutes early.
The national on-time rate over the same period is 77.6%, so Republic on LGA to RDU runs 4 points behind the country as a whole. Across a thousand flights that is about 43 extra late arrivals.
Key figures
On time
73.3%
Arrivals under 15 minutes late, of 2,009 completed flights
Avg delay
64 min
Across delayed arrivals only, not all flights
Cancelled
5.85%
National rate is 1.81%
Whole route
72.6%
Every carrier on LGA to RDU, 2,715 flights
These figures cover 2,135 flights between July 2025 and June 2026. Beyond the headline rate, 10.0% 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 RDU
Republic flew 2,135 of the 2,715 flights on LGA to RDU, most of the route. Its 73.3% on time is about level with the route as a whole at 72.6%. Ranked by on-time rate it is number two of four carriers on the route, where the range runs from Delta at 80.8% to American at 45.5%. 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 |
|---|---|---|---|---|---|
| Delta Air Linesthin sample | 344 | 80.8% | 71 min | 4.65% | B− |
| Republic Airways (this page) | 2,135 | 73.3% | 64 min | 5.85% | C− |
| Frontier Airlinesthin sample | 201 | 55.4% | 105 min | 6.97% | D− |
| American Airlinesthin sample | 35 | 45.5% | 105 min | 5.71% | F− |
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 40 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–8am170 flights95.5%
- 8am–11am466 flights81.1%
- 11am–2pm577 flights78.6%
- 2pm–5pm477 flights64.1%
- 5pm–8pm257 flights55.5%
- 8pm–5am188 flights63.7%
Scale runs 45% to 100%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 55.5% on time, against 95.5% 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 577 flights scheduled in it.
Across the year
Republic on LGA to RDU through the year
December is the weak month at 56.0% on time, against 85.6% in May. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. July was the busiest month here, with 221 flights.
Across the week, Saturday is the strongest day at 81.2% on time and Sunday the weakest at 66.4%. 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. Late-arriving aircraft accounts for 43% of the 34,000 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%Late-arriving aircraft
- 34%National Airspace System
- 17%Carrier
- 5%Extreme weather
- 0%Security
43% 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 34,000 reported delay minutes here, that single category outweighs weather by 9 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 34,110 reported delay minutes.
34% 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 12,000 minutes out of 34,000, against a national NAS share of 21%.
Cancellations run at 5.85%, against 1.81% nationally. That is roughly 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. 10.0% 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 5am–8am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 69.3% on time across 2,134 flights, 4 points below 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 2,135 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 RDU
Put together: the delay figures matter less here than the 5.85% 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. 2,009 completed flights over 12 months sit behind that.
Related
Where to go next
- LGA to RDU, every carrier
- Republic on RDU to LGA, the return leg
- Delta Air Lines on LGA to RDU80.8%
- Frontier Airlines on LGA to RDU55.4%
- Republic Airways network-wide record
- LaGuardia (LGA) delay statistics
- Raleigh-Durham International (RDU) 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.