Carrier route record
UACLT→EWR
United Airlines · Charlotte to Newark
- Flights
- 870
- Period
- July 2025 to June 2026
- Share of route
- 23%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with United Airlines.
United on CLT to EWR sits in the middle of the pack with a B. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.6%. The late ones land close to two hours behind schedule. That rests on 870 flights. The strongest carrier on the route with a full sample, Republic Airways, flew 657 at 82.4% on time.
Republic Airways is the most reliable of the three carriers covered here at 82.4% on time across 657 flights.
Key figures
On time
75.9%
Arrivals under 15 minutes late, of 845 completed flights
Avg delay
108 min
Across delayed arrivals only, not all flights
Cancelled
2.76%
National rate is 1.81%
Whole route
74.5%
Every carrier on CLT to EWR, 3,755 flights
These figures cover 870 flights between July 2025 and June 2026. Beyond the headline rate, 12.7% 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
United against every carrier on CLT to EWR
United flew 870 of the 3,755 flights on CLT to EWR, about 23% of it. Its 75.9% on time is about level with the route as a whole at 74.5%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Republic at 82.4% to American at 70.7%.
The choice of carrier is not cosmetic here. Republic Airways arrives on time 82.4% of the time; American Airlines manages 70.7%. Sample sizes sit next to every figure, because a two-point gap across 1,826 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airways | 657 | 82.4% | 104 min | 4.57% | B− |
| Spirit Airlines | 402 | 76.0% | 81 min | 6.72% | B− |
| United Airlines (this page) | 870 | 75.9% | 108 min | 2.76% | B |
| American Airlines | 1,826 | 70.7% | 76 min | 3.67% | C− |
Spirit Airlines cancels 6.7% 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.
Departure window
When United runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 49 points, against 12 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am361 flights92.9%
- 8am–11am—
- 11am–2pm100 flights89.9%
- 2pm–5pm45 flights84.4%
- 5pm–8pm292 flights55.5%
- 8pm–5am72 flights43.9%
Scale runs 35% to 100%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 43.9% on time, against 92.9% 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 5am–8am window is the busiest, with 361 flights scheduled in it.
Across the year
United on CLT to EWR through the year
July is the worst month at 60.7% on time, 33 points below June, the best at 93.3%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. July was the busiest month here, with 115 flights.
Across the week, Wednesday is the strongest day at 81.7% on time and Sunday the weakest at 69.7%. 12 points is a smaller lever than departure hour, but it is free.
Delay causes
Why United runs late on this route
One category carries most of the weight here. National Airspace System accounts for 51% of the 22,000 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.
- 51%National Airspace System
- 30%Late-arriving aircraft
- 17%Carrier
- 1%Extreme weather
51% 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 11,000 minutes out of 22,000, against a national NAS share of 21%. The split is drawn from 22,102 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 92.9% on time here.
Cancellations run at 2.76%, against 1.81% nationally. That is roughly one flight in 40 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. 12.7% 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.
The 529 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg runs 74.5% on time across 869 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.
One caution: this is a thin sample. 870 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 United on CLT to EWR
Put together: treat all of this as provisional. 870 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 75.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 845 completed flights over 12 months sit behind that.
Related
Where to go next
- CLT to EWR, every carrier
- United on EWR to CLT, the return leg
- Republic Airways on CLT to EWR82.4%
- Spirit Airlines on CLT to EWR76.0%
- American Airlines on CLT to EWR70.7%
- United Airlines network-wide record
- Charlotte Douglas International (CLT) delay statistics
- Newark Liberty International (EWR) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.