Carrier route record
UACHS→EWR
United Airlines · Charleston to Newark
- Flights
- 923
- Period
- September 2025 to August 2026
- Share of route
- 70%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with United Airlines.
United on CHS to EWR lands a B, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That rests on 923 flights, with a median arrival 8 minutes early.
Set against the rest of the country, United's CHS to EWR record is 5 points better than the US average of 77.3%. That gap is worth roughly 49 fewer late arrivals for every thousand flights.
Key figures
On time
82.2%
Arrivals under 15 minutes late, of 899 completed flights
Avg delay
107 min
Across delayed arrivals only, not all flights
Cancelled
2.60%
National rate is 1.89%
Whole route
78.9%
Every carrier on CHS to EWR, 1,320 flights
These figures cover 923 flights between September 2025 and August 2026. Beyond the headline rate, 9.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
United against every carrier on CHS to EWR
United flew 923 of the 1,320 flights on CHS to EWR, most of the route. Its 82.2% on time is 3 points better than the route as a whole, which runs 78.9%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Republic at 84.8% to Spirit at 61.4%. 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 |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 163 | 84.8% | 105 min | 5.52% | B− |
| United Airlines (this page) | 923 | 82.2% | 107 min | 2.60% | B |
| Spirit Airlinesthin sample | 234 | 61.4% | 74 min | 5.98% | D− |
Flight by flight
United flight numbers on CHS to EWR
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 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 35 points, against half a point between the best and worst carrier.
- 5am–8am339 flights91.8%
- 8am–11am8 flights—
- 11am–2pm311 flights89.2%
- 2pm–5pm90 flights56.5%
- 5pm–8pm139 flights62.5%
- 8pm–5am36 flights67.6%
Scale runs 50% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 91.8% of the time, against 56.5% for the afternoon window. That is 35 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 339 flights scheduled in it.
Across the year
United on CHS to EWR through the year
December is the weak month at 69.9% on time, against 94.6% in September. 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. August was the busiest month here, with 91 flights.
Across the week, Saturday is the strongest day at 89.7% on time and Sunday the weakest at 72.8%, a spread of 17 points.
Arrival by arrival
How late United on CHS to EWR runs when it is late
United on CHS to EWR often beats the schedule: 245 of 899 completed flights, 27%, arrived 15 minutes or more early. When United on CHS to EWR is late it tends to be very late: 82 of its 160 late arrivals were an hour or more behind, and 45 were two hours or more.
- 15+ min early245 flights27.3%
- Within 15 min494 flights54.9%
- 15–29 min late37 flights4.1%
- 30–59 min late41 flights4.6%
- 1–2 hours late37 flights4.1%
- 2+ hours late45 flights5.0%
Scale runs 0% to 100%.
Share of 899 completed flights by arrival against schedule.
20 of 142 late departures made up the time and arrived on time, 14% of them. 38 flights left on time and still arrived late.
The worst days
Worst days for United on CHS to EWR
The latest arrival of the period was on 26 January 2026, 16 hours 11 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across January, December, July and November, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 26 January 2026 | 16 hours 11 minutes | Carrier |
| 19 December 2025 | 13 hours 10 minutes | Late-arriving aircraft |
| 19 July 2026 | 10 hours 59 minutes | Late-arriving aircraft |
| 9 November 2025 | 10 hours 53 minutes | Carrier |
| 10 July 2026 | 6 hours 45 minutes | National Airspace System |
Delay causes
Why United runs late on this route
National Airspace System accounts for 45% of the 17,000 delay minutes carriers reported here, and the remaining four split what is left.
- 45%National Airspace System
- 31%Late-arriving aircraft
- 20%Carrier
- 4%Extreme weather
45% 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 7,753 minutes out of 17,000, against a national NAS share of 21%. The split is drawn from 17,059 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 91.8% on time here.
Cancellations run at 2.60%, against 1.89% nationally. That is about 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
9.1% 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.
The 628 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.
The return leg is a different operation and performs like one: it runs 79.1% on time across 921 flights, 3 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 3 points of difference.
One caution: this is a thin sample. 923 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 CHS to EWR
Put together: treat all of this as provisional. 923 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 82.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 899 completed flights over 12 months sit behind that.
Related
Where to go next
- CHS to EWR, every carrier
- United on EWR to CHS, the return leg
- Republic Airways on CHS to EWR84.8%
- Spirit Airlines on CHS to EWR61.4%
- United Airlines network-wide record
- Charleston International (CHS) delay statistics
- Newark Liberty International (EWR) delay statistics
- The US routes with the most cancellations
- What a cancellation rate actually tells you (and what it hides)
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.