Carrier route record
F9LGA→RDU
Frontier Airlines · New York to Raleigh
- Flights
- 201
- Period
- July 2025 to June 2026
- Share of route
- 7%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on LGA to RDU earns a D−, which is as low as this site's scale goes for a reason. Only 55.4% of flights arrive inside the 15-minute window, 22 points worse than the national rate of 77.6%. Late arrivals average close to two hours. Treat any tight connection here as a coin flip. That rests on 201 flights, with a median arrival 10 minutes late.
The national on-time rate over the same period is 77.6%, so Frontier on LGA to RDU runs 22 points behind the country as a whole. Across a thousand flights that is about 222 extra late arrivals.
Key figures
On time
55.4%
Arrivals under 15 minutes late, of 186 completed flights
Avg delay
105 min
Across delayed arrivals only, not all flights
Cancelled
6.97%
National rate is 1.81%
Whole route
72.6%
Every carrier on LGA to RDU, 2,715 flights
These figures cover 201 flights between July 2025 and June 2026. Beyond the headline rate, 19.4% 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
Frontier against every carrier on LGA to RDU
Frontier flew 201 of the 2,715 flights on LGA to RDU, about 7% of it. Its 55.4% on time is 17 points worse than the route as a whole, which runs 72.6%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Delta at 80.8% to American at 45.5%. Two 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 | 2,135 | 73.3% | 64 min | 5.85% | C− |
| Frontier Airlines (this page)thin sample | 201 | 55.4% | 105 min | 6.97% | D− |
| American Airlinesthin sample | 35 | 45.5% | 105 min | 5.71% | F− |
Departure window
When Frontier runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 201 flights.
There are not enough flights in each departure window to split Frontier's LGA to RDU record by time of day without the percentages moving on noise. The headline rate of 55.4% is the reliable figure here.
Across the year
Frontier on LGA to RDU through the year
- Jul–Sep 202592 flights59.0%
- Oct–Dec 202567 flights44.4%
- Jan–Mar 202621 flights—
- Apr–Jun 202621 flights—
Scale runs 35% to 65%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 55.4% on time across 201 flights.
Split by quarter, Frontier on LGA to RDU logged 92 flights in Jul–Sep 2025, 67 flights in Oct–Dec 2025, 21 flights in Jan–Mar 2026 and 21 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 55.4% annual figure is the one to use.
Across the week, Thursday is the strongest day at 58.1% on time and Sunday the weakest at 41.9%. 16 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Frontier runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 72% of the 8,724 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.
- 72%Late-arriving aircraft
- 16%Carrier
- 12%National Airspace System
- 0%Extreme weather
72% 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 8,724 reported delay minutes here, that single category outweighs weather by 72 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 8,724 reported delay minutes.
Cancellations run at 6.97%, 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. 19.4% 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 5pm–8pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 61.0% on time across 201 flights, 6 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 6 points of difference.
One caution: this is a thin sample. 201 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Frontier on LGA to RDU
Put together: the delay figures matter less here than the 6.97% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 5pm–8pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 186 completed flights over 12 months sit behind that.
Related
Where to go next
- LGA to RDU, every carrier
- Frontier on RDU to LGA, the return leg
- Delta Air Lines on LGA to RDU80.8%
- Republic Airways on LGA to RDU73.3%
- Frontier Airlines 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.