Carrier route record
YXRDU→LGA
Republic Airways · Raleigh to New York
- Flights
- 1,919
- Period
- September 2025 to August 2026
- Share of route
- 77%
- Carriers
- 4
Historical statistics for September 2025 to August 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: 6.6% of scheduled flights never operate, against 1.9% 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 1,919 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.3%, so Republic on RDU to LGA runs 8 points behind the country as a whole. Across a thousand flights that is about 78 extra late arrivals.
Key figures
On time
69.5%
Arrivals under 15 minutes late, of 1,791 completed flights
Avg delay
80 min
Across delayed arrivals only, not all flights
Cancelled
6.57%
National rate is 1.89%
Whole route
69.7%
Every carrier on RDU to LGA, 2,489 flights
These figures cover 1,919 flights between September 2025 and August 2026. Beyond the headline rate, 13.4% 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 RDU to LGA
Republic flew 1,919 of the 2,489 flights on RDU to LGA, most of the route. Its 69.5% on time is about level with the route as a whole at 69.7%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from American at 84.1% to Frontier at 56.9%. 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 | 87 | 84.1% | 67 min | 5.75% | B− |
| Delta Air Linesthin sample | 344 | 72.7% | 95 min | 4.07% | C− |
| Republic Airways (this page) | 1,919 | 69.5% | 80 min | 6.57% | C− |
| Frontier Airlinesthin sample | 139 | 56.9% | 58 min | 6.47% | D− |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
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 31 points, against half a point between the best and worst carrier.
- 5am–8am237 flights81.7%
- 8am–11am317 flights84.4%
- 11am–2pm378 flights68.1%
- 2pm–5pm479 flights68.8%
- 5pm–8pm415 flights55.9%
- 8pm–5am93 flights53.8%
Scale runs 45% to 90%.
The 8pm–5am window is where this operation falls apart: 53.8% 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 479 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. September was the busiest month here, with 195 flights.
Across the week, Saturday is the strongest day at 79.9% on time and Friday the weakest at 65.2%, a spread of 15 points.
Arrival by arrival
How late Republic on RDU to LGA runs when it is late
Republic on RDU to LGA often beats the schedule: 474 of 1,791 completed flights, 26%, arrived 15 minutes or more early. The 547 late arrivals split 151 under half an hour, 156 between 30 and 60 minutes, and 240 an hour or more.
- 15+ min early474 flights26.5%
- Within 15 min770 flights43.0%
- 15–29 min late151 flights8.4%
- 30–59 min late156 flights8.7%
- 1–2 hours late130 flights7.3%
- 2+ hours late110 flights6.1%
Scale runs 0% to 100%.
Share of 1,791 completed flights by arrival against schedule.
63 of 462 late departures made up the time and arrived on time, 14% of them. In the other direction, 148 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 LGA.
The worst days
Worst days for Republic on RDU to LGA
The latest arrival of the period was on 6 September 2025, 16 hours 11 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 September 2025 | 16 hours 11 minutes | National Airspace System |
| 7 December 2025 | 14 hours 43 minutes | Carrier |
| 16 August 2026 | 13 hours 31 minutes | Carrier |
| 8 November 2025 | 10 hours 39 minutes | Late-arriving aircraft |
| 5 September 2025 | 8 hours 13 minutes | Carrier |
Delay causes
Why Republic runs late on this route
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 44,000 reported delay minutes.
- 41%National Airspace System
- 40%Late-arriving aircraft
- 16%Carrier
- 3%Extreme weather
40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 44,000 reported delay minutes here, that single category outweighs weather by 12 to one. The split is drawn from 43,854 reported delay minutes.
41% 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 18,000 minutes out of 44,000, against a national NAS share of 21%.
Cancellations run at 6.57%, against 1.89% 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
13.4% 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.
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 73.1% on time across 1,921 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 1,919 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 6.57% cancellation rate. A late arrival costs you a little over an hour; 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. 1,791 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 LGA56.9%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.